🚨⚠️آیا کسانی که قبلاً به کووید-۱۹ مبتلا شده‌اند و هنوز در بدن خود آنتی‌بادی دارند ممکن است با واریانت جدید آفریقای جنوبی دوباره به کووید-۱۹ مبتلا شوند؟ پاسخ: بله. مرکز کنترل و پیش‌گیری از بیماری‌های آفریقای جنوبی
🚨⚠️آیا کسانی که قبلاً به کووید-۱۹ مبتلا شده‌اند و هنوز در بدن خود آنتی‌بادی دارند ممکن است با واریانت جدید آفریقای جنوبی دوباره به کووید-۱۹ مبتلا شوند؟ پاسخ: بله. مرکز کنترل و پیش‌گیری از بیماری‌های آفریقای جنوبی
But because group chats and the channel features are not end-to-end encrypted, Galperin said user privacy is potentially under threat. In 2018, Russia banned Telegram although it reversed the prohibition two years later. If you initiate a Secret Chat, however, then these communications are end-to-end encrypted and are tied to the device you are using. That means it’s less convenient to access them across multiple platforms, but you are at far less risk of snooping. Back in the day, Secret Chats received some praise from the EFF, but the fact that its standard system isn’t as secure earned it some criticism. If you’re looking for something that is considered more reliable by privacy advocates, then Signal is the EFF’s preferred platform, although that too is not without some caveats. He said that since his platform does not have the capacity to check all channels, it may restrict some in Russia and Ukraine "for the duration of the conflict," but then reversed course hours later after many users complained that Telegram was an important source of information. Telegram was founded in 2013 by two Russian brothers, Nikolai and Pavel Durov.
from hk
