【我们继续聊天？】常问问题

This Citizen Lab research reverse-engineers WeChat's proprietary MMTLS protocol and a nested "business-layer" encryption, finding that business-layer encryption leaks metadata (including account IDs) and has some small weaknesses, while the outer MMTLS layer remains generally intact with no major security failures discovered; communications are not end-to-end encrypted (WeChat servers can decrypt messages), and the report provides risk context and user-recommendations such as keeping devices updated and installing apps from official sources.