American social mia platforms, including Facebook and WhatsApp, were oblig to transfer encrypt messages from users to the UK police to assist in investigations of persons suspect of serious crimes [2 ] . At the end of November 2019, that it was going to launch a large-scale investigation against technology giants due to the fact that they do not provide the government and law enforcement agencies with access to user correspondence [3] . In December 2019, Facebook reject a request from the US authorities to abandon end-to-end encryption, which made it impossible to intercept messages [4] . In the summer of 2019, during the protests, the Hong Kong authorities dealt a blow to Telegram users.
This method requires a lot of resources
When adding a phone number to contacts, this messenger Bahamas Mobile Number List matches the enter data with the user account [5] . That is, by adding the number of a person to your address book, you can write to him in the messenger. This is what the Hong Kong authorities us to deanonymize the protesters. According to Alexander Ognev, then special groups were creat that, by brute force, add the protesters to their contacts and compar them with real people. How do messengers bypass content blocking? Modern political realities have add a new criterion to the arsenal of instant messengers. Many countries have begun to regulate content post on the global Web.
The Yarovaya law adopt in Russia
China has built a great firewall, Russia has adopt the BT Lists Yarovaya Law, and other countries are also adopting regional methods of isolating traffic and controlling content. In view of this, providers are forc to find ways to block content. In particular,a in 2017, obliges telecom operators to store records of customer phone calls and their Internet traffic on their servers for six months, as well as keys for decrypting correspondence with the ability to transfer this data to the FSB. Telegram management stat that these requirements are technically unfeasibl.
