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, should you ponder how one can securely use IGE) which is protected in opposition to non-adaptive CPAs. IGE is known to be not safe towards blockwise-adaptive CPA, but MTProto fixes this in the subsequent manner: The better part of https://www.mtpoto.com/