: Kaspersky frequently blocks codes that are shared publicly or used illegally. If you use a leaked key, you will likely see a "Key is blocked" Phishing Risks
This feature breaks many Electron apps (Telegram Desktop is built on Electron). kaspersky internet security key telegram fix
Sometimes the "fix" isn't about the key, but about Kaspersky blocking Telegram's functionality (like file uploads). If your antivirus is interfering with the Telegram app: : Kaspersky frequently blocks codes that are shared
: This error occurs when Kaspersky engineers identify a key being used illegally or by too many people. The only "fix" is to find a newer code. Region Errors kaspersky internet security key telegram fix