这里主要探讨的是跑路的可能性，而不是隐私保护，这三家的隐私保护从技术上都没什么大问题。 MTProto Uses AES in IGE mode (see this, in case you surprise how one can securely use IGE) that is definitely protected from non-adaptive CPAs. IGE is known to become not secure against blockwise-adaptive CPA, but MTProto fixes this in the subsequent fashion: The disadvantage of Telegram is the https://www.mtpoto.com/