Telegram was founded in 2013 by two Russian brothers, Nikolai and Pavel Durov. Groups are also not fully encrypted, end-to-end. This includes private groups. Private groups cannot be seen by other Telegram users, but Telegram itself can see the groups and all of the communications that you have in them. All of the same risks and warnings about channels can be applied to groups. In 2018, Russia banned Telegram although it reversed the prohibition two years later. Despite Telegram's origins, its approach to users' security has privacy advocates worried. Under the Sebi Act, the regulator has the power to carry out search and seizure of books, registers, documents including electronics and digital devices from any person associated with the securities market.
from ru