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 Makes use of AES in IGE manner (see this, for those who ponder how you can securely use IGE) which is safe from non-adaptive CPAs. IGE is understood to generally be not safe towards blockwise-adaptive CPA, but MTProto fixes this in the next method: Mtoto scrambled following Bunga, https://www.mtpoto.com/