K3 - точка дотику вписаного кола ABC до AB T - точка дотику зовнівписаного кола проти вершини A до AC A' - діаметрально протилежна точка до А відносно (ABC) Ib - центр зовнівписаного кола проти B (!) A'Ib, K3T перпендикулярні
K3 - точка дотику вписаного кола ABC до AB T - точка дотику зовнівписаного кола проти вершини A до AC A' - діаметрально протилежна точка до А відносно (ABC) Ib - центр зовнівписаного кола проти B (!) A'Ib, K3T перпендикулярні
But because group chats and the channel features are not end-to-end encrypted, Galperin said user privacy is potentially under threat. At its heart, Telegram is little more than a messaging app like WhatsApp or Signal. But it also offers open channels that enable a single user, or a group of users, to communicate with large numbers in a method similar to a Twitter account. This has proven to be both a blessing and a curse for Telegram and its users, since these channels can be used for both good and ill. Right now, as Wired reports, the app is a key way for Ukrainians to receive updates from the government during the invasion. Additionally, investors are often instructed to deposit monies into personal bank accounts of individuals who claim to represent a legitimate entity, and/or into an unrelated corporate account. To lend credence and to lure unsuspecting victims, perpetrators usually claim that their entity and/or the investment schemes are approved by financial authorities. In addition, Telegram's architecture limits the ability to slow the spread of false information: the lack of a central public feed, and the fact that comments are easily disabled in channels, reduce the space for public pushback. The message was not authentic, with the real Zelenskiy soon denying the claim on his official Telegram channel, but the incident highlighted a major problem: disinformation quickly spreads unchecked on the encrypted app.
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