Telegram Founder mentioned Open Source Government Backdoors

Did anyone watched Tucker Carlsons episode 94 on X where he interviewed Telegram founder Pavel Durov? At 18:15 he mentioned that US agents tried to get unnamed open source components into the messenger in order to establish a backboor. That probably means they not only maintain a list of zero-day exploits but also actively produce these in open source project to target whole populations as we learned from Snowden. Any advice how to deal with it?

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