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Review of the best Bitcoin apps on Android

Warning! The editors of BitNovosti and the author of this material are not responsible for the actions of the mentioned applications. Use them at your own risk. The information presented in the review is current at the time of its creation. Be extremely attentive and careful. Avoid scammers and inadequate developers.

Promon: hackers use vulnerability in Android to access cryptocurrency wallets

To be honest, I am not a supporter of using cryptocurrency on a mobile device. Because, despite all the efforts of the interested community, cryptocurrencies still have a rather uncertain status both in Russia and in the rest of the world. At the same time, mobile devices, mainly running such leading operating systems as Android and iOS, are completely tied to your real personality.

Phone number, email, contacts, accounts, payment applications, camera and microphone, GPS - everything is woven into one, which connects every action with the owner of the device, as well as the actions of the owner of several devices and his family members. Only the most careful, sophisticated and competent users can avoid this (and there are few of them). Various security measures, such as retinal scanners, fingerprint and voice IDs (“Ok Google”), only exacerbate the effect of the inevitability of control. (I always knew this, but when I remember, I feel uneasy).

Do you know what will happen if you neglect information security?

Here's an example:

And the Bitcoin philosophy is not at all “pro-system”, so the System has no sympathy for Bitcoin. At the same time, Bitcoin is alive and well, but requires some basic precautions. For example, don't link wallets to your real identity. Everyone knows that de-anonymization of income can end very badly, especially for the owner of a cryptocurrency.

The Android OS is not private by default—installed apps can access data from other apps (with your permission), as well as your personal information.

In addition, the device itself could fall into the hands of an attacker, a law enforcement officer, or, worse, a malicious law enforcement officer. Be prudent and avoid losing your hard-earned bitcoins.

Blockchain Wallet

Blockchain Wallet is the oldest Bitcoin wallet, with about 38 million users and operating in 140 countries. Recently, Blockchain Wallet has become multi-currency and supports cryptocurrencies such as Bitcoin Cash, Ethereum, Stellar and Paxos.

Benefits of using Blockchain Wallet:

• Unprecedented security (biometrics, two-factor authentication and PIN code);
• Wallet backup and recovery;
• Hierarchical deterministic address architecture;
• Exchange one cryptocurrency for another;
• Graphs, courses, diagrams;
• Simple and convenient user interface;
• Multilingual (support for 21 languages);

Bitcoin and Android: combines incompatible things

In this material, we will talk specifically about using cryptocurrency (mainly bitcoins) on an Android phone, because... it is the most popular and accessible open source operating system.

At the same time, Android has long turned into a real “Google Phone” (as it was intended - Google bought it three years before the official release). And, most importantly, it allows you to spy not only on you, but also on you (which happens more often).

Although, it is worth recognizing that for the owner of cryptocurrencies, the danger does not come from Google itself. In fact, it is necessary to protect the device from direct physical access and theft of funds by hacker methods. At the same time, ridding the device of excessive attention from large technology companies would be simply good form. Richard Stallman would certainly approve.

Is it possible to do without Google on Android? Honestly, no. Because it's inconvenient. It’s easier to limit the activity of built-in applications or remove them altogether. But, if absolute security and anonymity are required, then within the scope of this article, options for flashing the device are not considered.

And yet, you can use a device based on Android OS without a Google account. Whether this makes sense is up to you to decide. In any case, mobile devices are not a suitable option for storing large amounts. Moreover, it is unlikely that the main danger in this context of using your smartphone/tablet is Google. Better protect your savings and personal data from unnecessary attention from others.

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But it still wouldn’t hurt to:

• Disable auto-update of applications from Google Play

• Disable Google Account Sync

• Allow installation of applications from third party sources

• Limit Google's collection of information about your activities

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The most popular local Bitcoin client Bitcoin Core

This type of wallet is the most secure online version, but requires additional protection from hacker attacks, since all data is stored on your PC.

Bitcoin Core is the main Bitcoin client used by most online users because it is the original Bitcoin client and is easy to use. However, it will also take up about 20 GB of space on your computer and will take a long time to sync on startup after downloading and installing.

The standard transfer fee is around 0.00001 BTC/KB, which is much lower than the fees charged when using online Bitcoin services. Platforms: Mac, Win, Linux Armory - Suitable for advanced users who require greater flexibility and security to manage their funds.

It also requires the underlying Bitcoin platform and is built on a simple client. The client is resource-intensive and therefore requires a fairly “powerful” computer. Electrum is a lightweight yet powerful Bitcoin client that is useful for beginners as it is easy to use. There is a full version and a portable version.

The purpose of this application is to speed up the process of using Bitcoin wallets as quickly as possible without consuming a lot of resources. Electrum does not synchronize the entire blockchain backbone, but uses its own remote server to store the backbone.

You can also create and use your own server. Platform: Mac, Win, Linux, Android and Electrum.

Cryptocurrency wallets for Android

Before installing the wallet, make sure that it is not a fake. Otherwise, you risk losing your money.

To eliminate unnecessary risks, go to the office. bitcoin.org website page and open the section with recommended wallets:

https://bitcoin.org/ru/wallets/mobile/android/

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A cryptocurrency wallet typically guarantees:

• Full control over your account. No one can check how much money you have and freeze it if desired.
• At the same time, no special trust in the reliability of the transfer is required - all transactions are irreversible.
• As a rule, cryptocurrency wallets are open source, which allows us to hope for their reliability

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Although, in this case, all three advantages have a downside:

• You must take care of the safety of funds yourself (protect your device from hackers and make backup copies of wallets)
• If you transferred money by mistake or the receiving party did not fulfill the terms of the transaction, you will not be able to return anything and will not be able to complain anywhere.
• Open source code allows it to be studied not only by honest developers, but also by malicious hackers for vulnerabilities. Therefore, do not keep too much money in the so-called. "hot" wallets.

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When choosing a wallet, you should pay attention to the following aspects:

• Developer Reputation
• Security (open or closed code, method of storing keys and confirming transactions)
• Anonymity (the need for identity verification, as well as encryption and IP hiding mechanisms)
• Functionality and user-friendliness of the interface
• Transaction cost (is there an additional fee for developers)

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Bitcoin Wallet

We have to admit that this is the simplest application for sending and receiving Bitcoins that you can imagine. Nothing extra - just you and bitcoins.

This is not only the first mobile wallet from the list presented on the bitcoin.org website, but also, probably, the very first bitcoin wallet on Android, the development of which began back in 2010 by the famous programmer Andreas Schilbach.

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During the Bitcoin tour of Europe, Bitnovosti had the opportunity to talk with programmer Andreas Schildbach, developer of the popular Android wallet Bitcoin Wallet for Android. The conversation took place on March 3, 2016 at a Bitcoin meetup in the Berlin cafe Room77.

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Synchronization is extremely fast, because... only a small portion of recent transactions is needed.

Security is implemented as simply as the wallet itself - a password for the application and a backup copy. If you lose your device with backup, you lose your bitcoins.

Therefore, it is simply necessary to have reliable tools at hand for encrypting and synchronizing data, in our case backups. And no clouds!

By default, the wallet uses an advanced version of Bitcoin addresses - bech32, which is part of the SegWit technology. In particular, this innovation significantly speeds up the transfer of bitcoins between similar addresses (and makes them cheaper). You can read about SegWit and its benefits here.

By the way, the presence of SegWit support is a rule of good manners for any self-respecting Bitcoin wallet (if we are talking about “real” Bitcoins).

The commission level is set manually (three modes), although there is no way to set a specific amount. Although, usually, the recommended value suits the user quite well.

Additional features include the ability to connect only to a trusted node (and you can only trust yourself) and offline payments via bluetooth (synchronization occurs later when the device is connected to the network). You can connect to certain nodes not only directly, but also through Tor.

At this point, in principle, there is nothing more to say about this wallet, and you can move on to more interesting and advanced options.

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If you wish, you can practice “on cats,” or rather on test bitcoins. They are almost no different from the real ones, with the exception of the name.

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Electrum Wallet

This is already a more remarkable thing from an extremely popular brand, known for its reliable and functional desktop applications for storing cryptocurrencies. Although, one is enough to work with bitcoins. It’s great that the desktop client is available in a portable version, which allows you to use it directly from a protected flash drive. But, this is material for another article.

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The Electrum family of wallets are lightweight clients that do not download the blockchain to your device, which requires them to connect to remote nodes. True, in the settings you can choose which node to connect to, including, it could be your node.

Like the desktop version, the mobile application uses a number of addresses to receive and send coins, which significantly increases the confidentiality of transfers.

Also, Electrum differs from the previous wallet by the presence of a seed phrase for recovery from any device. True, in this case, it is recommended to take care of the safe storage of the twelve most important words in your life, for example, engrave them on metal and hide them away from prying eyes.

Another interesting feature, in addition to the default support for SegWit, is the built-in interface for making payments on the Lightning network.

Lightning Network support added to Electrum wallet

Although, other special wallets will be presented here for Lightning.

Finally, it is worth noting the convenience of creating new wallets for use in the Electrum mobile client and a more flexible approach to managing commissions. Overall, the application leaves a pleasant impression and can be safely recommended for everyday use.

But for more complex cases, where maximum confidentiality is required, more functional and no less well-known things have been created.

Samourai Wallet

“We are privacy activists who have dedicated our lives to developing software that Silicon Valley will never build, that regulators will never approve, that venture capitalists will never invest in. We create software that Bitcoin deserves, and we are proud to be open source!”

Yes, after this it is impossible to ignore this project. Here, even the most experienced geek will certainly secretly wipe away a stingy tear.

It should immediately be noted that to obtain a full-fledged wallet, you need to download it not from Google Play, but from the official website of the developers:

https://samouraiwallet.com/download

https://github.com/Samourai-Wallet

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Today, Samourai Wallet, launched back in 2015, is rightfully considered the most feature-rich and advanced Bitcoin wallet available on Android OS.

In order to describe in detail all the functions and features of the wallet, or rather, the whole set of software from the Samourai family, you will need to make a separate material, so only a general, brief description of the mobile client will be presented here.

Samourai Wallet features:

• Full Segwit support for fast and low-cost transactions
• You control your own private keys, which are not transferred to third-party servers
• Dynamic evaluation and custom commission settings
• STONEWALL technology to enhance the privacy of your transactions
• Ricochet technology against transaction tracking
• Send and receive private payments using PayNym (BIP47)
• Deterministic input/output sorting for greater anonymity (BIP69)
• Increasing the commission for a sent transaction using Replace By Fee (RBF) and Child Pays for Parent (CPFP) technologies
• Routing outgoing transactions through a trusted node
• Addresses are not reused
• Standardized export/import function. The backup is compatible with any other wallet based on BIP44/BIP49/BIP84
• Hidden mode. To access the wallet you need to dial a secret code on the call panel
• Remote SMS commands to remove a wallet from a lost or stolen device
• Built-in local Block Explorer
• Seed phrase support
• Full client-side encryption
• Connection via VPN or Tor
• Full offline mode

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It’s worth looking at Whirlpool’s functions in a little more detail. Whirlpool is a completely decentralized analogue of a regular cryptocurrency mixer (toggle switch), which works as part of the technology for anonymizing transactions - CoinJoin. The function mathematically separates the inputs of senders from the outputs of recipients, thereby complicating the process of tracking transactions.

Mechanics of anonymous coins

Thus, the Whirlpool framework is a modular implementation of CoinJoin, developed using the ZeroLink protocol, or rather its modified fork.

At first, Whirlpool was only available in Dojo, a full-featured desktop wallet that is a full-fledged node equipped with advanced features and a user-friendly interface. The solution turned out to be extremely popular, and with the addition of a toggle switch function to the mobile version of Samourai, it caused a threefold increase in the volume of anonymous transactions in a few months.

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Sentinel

Sentinel is the so-called A “watcher wallet” whose sole purpose is to track balances and transactions, as well as create new addresses for cold hierarchical deterministic wallets.

According to the developers, Sentinel does not store user IDs or private keys. To track an address, you simply need to scan the XPUB (extended public key). You can install the application from the Google Play store or from the developers' website.

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Exodus

Well, no one can get enough of Bitcoin alone! For those who need to work with several cryptocurrencies at once, the Exodus application offers not only wallets for dozens of different coins, but also the ability to exchange them among themselves. It's scary to think, but Exodus can store more than 100 cryptocurrencies and derivative tokens.

More details here: https://www.exodus.io/status/

A multi-currency wallet does not require registration or any personal data at all. Coins are freely convertible among themselves with a minimum commission (to miners). Exodus itself does not charge anything.

True, like all glamorous wallets, it has strange features. For example, the seed phrase for recovery is available only after depositing the first funds to any wallet address. Although, the PIN code can be set immediately.

+closed source, which does not add value to it. The commission is not set manually - it does not suit a promising blockchainer to squeeze pennies.

Private keys are also stored on the client side, which is definitely great. The blockchain is not loaded - all sacraments take place on third-party servers. Although, for a mobile client this is normal.

In general, Exodus is a beautiful and convenient wallet, without serious shortcomings and claims to revolution.

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https://www.exodus.io/mobile/

BLW: Bitcoin Lightning Wallet

Now comes the turn of innovation: a two-in-one application that allows you to perform transactions on both the main Bitcoin network and the Lightning network.

In the best traditions of the technological underground, private keys do not leave your device, which provides some guarantees of the safety of funds.

It is worth recalling that Lightning Network technology allows instant (theoretically) payments in Bitcoin, which is implemented through a second layer (add-on) on top of the main network. You can read about how it works here.

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During installation, a new wallet and seed phrase are created for recovery. Don't forget to write it down.

In order to start using the Lightning Network, you first need to top up your balance in bitcoins, and then open a payment channel with one of the nodes in the network.

True, the kind developer has already taken care of this, and one channel (his own) is already open by default:

Moreover, this is not an easy channel, but a hosted channel with a reserve of 0.1 BTC, which allows you to immediately issue Lightning Nerwork invoices to other users (without replenishing the balance on your part). But this is a feature of this particular wallet.

The payment link is one-time and short-lived.

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If you decide to open channels yourself with other nodes, you will need a little theoretical knowledge.

It is important to know: you cannot receive or spend more than the amount you sent to open the channel. Moreover, in order to receive any amount within the channel width (invested amount), you must first spend the same amount of money.

Example: you need to get $100 through the Lightning Network. You take your $110 in bitcoins, top up your Lightning wallet balance, then open a payment channel with one of the nodes (the list is in the wallet), wait, wait again, then if the node is happy to see you, a channel for $110 opens.

Do not disconnect until the channel is finally open - a change in its status will indicate this!

Each node has its own minimum for opening (maintaining a node is expensive). If $110 is not enough for him, he has the right to have nothing in common with you. These nodes are equal users just like you. There is no bank or responsible persons here.

Now you must make room to receive $100 - to do this, withdraw $100 back (through the exchange office) or spend it, there will be $10 left and space for the new $100.

Thus, it becomes clear that using the Lightning Network requires some investment. You just need to understand that if you just need to get $100, use the main Bitcoin network for this, and if you need to pay $2 for a cup of coffee every day with a minimum commission, then use the above scheme with Lightning. If you find a place to pay for coffee via the Lightning Network. I personally prefer to drink coffee from a beer mug at home.

Important to know: receiving payments is only possible if your wallet is online. And second: your partner has the right to close the channel at any time. And if you are offline, your deposit may go to a dishonest node (although, as a rule, the funds are returned back to your Bitcoin address). Therefore, connect only to known nodes.

True, here too the developer of Bitcoin Lightning Wallet took care of user safety. By default, the wallet already has a special service enabled, the so-called. a “watchtower” that monitors your channels for violations by partners for a nominal fee.

And remember that the payment may not go through - in this case, the money will also be returned back after some time.

Additionally, it is once again recommended to carefully read everything about the features of this technology.

Blockstream Green

Blockstream Green is another great mobile wallet for storing your Bitcoins conveniently and securely.

Let's list the important functions of Blockstream Green:

• Support for two-factor authentication;
• Support for Trezor One and Ledger Nano S hardware wallets;
• Setting low commissions for Bitcoin payments;
• Multilingual;
• Innovative multi-signature security system that uses “double private keys”. One is stored on the wallet server, and the other is stored by the user;

Applications for trading and monitoring rates

Today, anyone can easily become a “real trader” by simply creating an account on any available exchange (one of dozens and hundreds) and topping up the balance. Further development of the situation depends on the correct choice of the exchange and the adequacy of the newly created “Wolf of Walt Street”.

For the convenience of trading various assets, you can install a separate application or an entire terminal to combine all accounts in it and use more advanced functionality, customizing it to your own needs.

And this is where serious problems emerge. After all, unfortunately, not everyone thinks about how safe it is to trust third-party software with their finances and confidential data (personal information, information about current and planned transactions, transaction history, balance sheet contents, etc.). Important information and access to operations may be at the mercy of scammers (dishonest developers) or hackers. In this case, losses for a careless trader are inevitable.

ESET: Android vulnerability targets users of cryptocurrency exchanges

Therefore, when working with the terminal, a trader must make sure that his information is reliably protected.

So do mobile trading apps meet basic security requirements?

Alien malware steals money from Coinbase wallet

A number of experts have long tested most of these applications and the conclusions were disappointing - most did not meet even basic standards and were potentially unsafe.

The most common threats:

Even if we discard options with inherently dangerous applications that were specifically created for unauthorized actions, a wide vector of attacks from hackers remains.

To exploit these threats, an attacker needs:

• Be on the same network as the user and have the ability to intercept traffic. This attack is called "man in the middle". For example, to implement it, you can connect the user’s device to a fake Wi-Fi access point or mobile operator base station.
• Gain physical access to the device, for example, you may lose the device or simply leave it in plain sight. Yes, to protect against unauthorized access to the application you will need a PIN code, but this is not a problem if the software is not protected from brute force (password brute force). In some trading applications, experts have discovered the possibility of unlimited PIN code brute force. The password attempt counter was reset when the application was restarted, so it was possible to select the access code as much as you wanted.
• Infect the user's device with malware. This is especially effective if the device has been unlocked as root. As an example, third-party keyboards can turn out to be keyloggers, which will allow an attacker to steal authorization data in various applications.

Attention! Some Android Devices Can Steal Your Bitcoins

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TabTrader

TabTrader is a fairly convenient terminal for trading on various cryptocurrency exchanges. The application tracks the rate and trading volume for a wide variety of cryptocurrencies on exchanges such as Coinbase, Bitstamp, Huobi, Kraken, Bitmarket, Bittrex, etc.

There are several chart types available in TabTrader: line, area, bars, candlesticks, heiken-ashi and empty candlesticks.

For ease of working with graphs, it is recommended to use a device with a tablet orientation.

You can also use several different technical indicators:

You can set up instant audio notifications about the slightest change in the value of a particular asset.

It should be noted that to work with exchanges you will need to create an account in TabTrader, which is a significant drawback, because all your accounts will be linked together. This is normal for a trading terminal, unless prior authorization is required on a third-party service, as in this case. In terms of privacy and security, this is not the best solution. Whether the service collects usage statistics and can access all information in the application is unknown. [use TabTrader at your own risk].

To work in TabTrader, you need to create an API key in your exchange account, and then link it to the terminal. When creating a key, you should not give it withdrawal rights. But creating and configuring an API key is a different story.

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Finally, it is worth noting that the application contains news from such well-known resources as Reddit, Coindesk, Bitcoin Magazine, etc.

Although, there are more interesting applications for monitoring news.

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Blockfolio

Blockfolio is a popular application that works with a huge number of cryptocurrencies (more than 8,000), allowing you to create a portfolio even without a direct connection to exchanges. Additionally, it provides news signals directly from the teams of various cryptocurrency projects.

But, if required, the application supports connection to more than 20 exchanges, providing complete information on the cryptocurrency portfolio (in total and separately for each currency).

Shows complete transaction history for each coin and exchange. Moreover, transactions can be added manually, indicating the nature - purchase, sale or transfer.

You can get detailed information on each currency: current exchange rate, charts, depth of market, etc.:

If necessary, it is possible to create alerts for a given event.

For reliability and security, it is recommended to add a PIN code to the application and use the “Hide balance” function.

TradingView

Definitely an amazing application from a very well-known service that allows you to not only track cryptocurrencies in real time, but also other underlying assets: global indices, stocks, currency pairs, bonds, futures, mutual funds, commodities, etc.

In addition, this is a convenient tool for both technical analysis experts and novice traders, because allows you to publish and view trading ideas and maintain your own account, which can become a popular source of information among other users. In essence, TradingView is the most active social network for traders and investors in the world.

Communicate with other traders, learn from their experiences and discuss trading ideas - everything is in your hands.

Here you can track the main world indices (NASDAQ Composite, S&P 500 (SPX), NYSE, Dow Jones (DJI), DAX, FTSE 100, NIKKEI 225, etc.), as well as monitor fiat and cryptocurrency rates, mutual funds, bonds , ETFs, oil prices and other assets.

Registration is optional, but will provide additional opportunities for interaction with other participants in the system, will allow you to receive alerts about changes in the value of assets and will provide access to the market simulator.

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An important feature of TradingView is its excellent charts with ample options for customizing the display:

The main thing is that TradingView tracks leading cryptocurrency exchanges such as HitBTC, Binance, BitBay, Coinbase, Mercado Gemini, Kraken, Huobi, OkCoin and provides rates for Bitcoin, Litecoin, Ripple, Ethereum, Ethereum Classic, IOTA, Dogecoin, USD Coin, Tron , Stellar, Tether, Cardano, Monero, ZCash, etc.

Additionally, the presence of a large number of indicators and templates is captivating, which probably cannot be found in any similar trading application.

Although, to effectively use all the features of TradingView on a mobile device, you will need a device with a tablet orientation:

Coinvero – cryptocurrency converter

Even if you don't need any professional capabilities, then, in any case, a simple cryptocurrency converter definitely won't hurt, especially one like Coinvero.

The interface in the form of a simple list will allow you to quickly convert about 800 different cryptocurrencies and 160 fiat currencies. Simple, fast, effective.

CryptoPanic

Unfortunately, the above applications do not have a section with Russian-language news, but this is not a reason for disappointment. There are excellent cryptocurrency news aggregators, for example, CryptoPanic.

The main feature is multilingualism. Just go to settings (swipe left) and select only Russian language in the filter. Now you will be aware of everything that happens in the world of cryptocurrencies. News is collected from both regular websites and Reddit threads, YouTube channels and influential social media accounts.

It is worth noting that CryptoPanic is not only a news aggregator, but also a whole community where you can comment on posts and track your cryptocurrency portfolio.

Additionally, the service provides up-to-date information on exchange rates, and an API for developers of various bots and widgets.

Buy Ethereum

Ethereum is the blockchain on which most NFTs are built. Ethereum, or ETH, is also the name of this network's native currency. Therefore, when you sell and buy NFTs, you will most likely use Ethereum.

Ethereum is listed on almost all cryptocurrency exchanges (it is the second largest cryptocurrency, after all), so you won't have any problems purchasing it.

READ

TOP most expensive NFTs ever sold

But why buy Ethereum to sell NFTs?

In order to buy and sell NFTs, you will usually use NFT marketplaces, which are something similar to eBay or Amazon, but for NFTs. By far the largest of these is OpenSea, which accounts for 97.8% of all Ethereum NFT trading as of November 2022. This is the market we will look at here.

Other Applications

Among other applications that may be useful to a trader, journalist or just an enthusiast, we can recommend software for keeping track of finances and time, various messengers, organizers, cryptographers, etc.

I won’t focus on this here, but I can’t help but dwell on just a first-class messenger.

Telegram

Needs no introduction. The official mobile client has become especially valuable in the form of the ability to finally scatter all channels into separate folders and separate them from long-suffering contacts lost somewhere in between.

First: a convenient tool for communication and making deals. It’s easy to contact a cashier, client, employer, contractor, colleague, partner, etc. And all this without the constant control of Google and Facebook. The application is lightweight and fast, does not consume much battery, and is open source (client). If necessary, you can use encryption of correspondence. No trust? Everything is better than WhatsApp, right? If you are not convinced, use something more confidential, for example, Antox.

One minus of Telegram: registration via SMS. But whoever needs it will solve the problem, if this is the case. Other people's servers? I truly believe that you have no intention of dealing in illegal substances.

Second: a huge number of channels, chats and bots dedicated to cryptocurrency topics. For example, you can subscribe to the Bitnovosti channel)

As an example, I’ll tell you about two fairly well-known bots on Telegram.

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Whale Alert monitors large transactions on eleven blockchains and reports details of these transactions on its Twitter as well as Telegram.

How is this useful? For example, on September 3, the bot notified a significant transaction of 60,000 BTC. This marked a sharp drop in the exchange rate throughout September. Don't believe me? And you open the TradingView application and check. You've already installed it, right?

Have you seen this? From April 1 to September 3 there is a clear upward trend. Phenomenal.

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@FOMO_Bot - Provides detailed information on long and short positions, as well as derivatives and futures from exchanges such as BitFinex, OKex, CoinFLEX, Kraken and BitMEX.

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And there are still a lot of such sources in Telegram – from official resources to blogs of seasoned Internet investigators. Choose, be impressed, shop (or run).