[where this model breaks down] -- Alice and Bob go to your website and have a conversation. Eve hacks into the website and modifies the E2EE code. She can switc

[where this model breaks down] -- Alice and Bob go to your website and have a conversation. Eve hacks into the website and modifies the E2EE code. She can switch between serving the normal webapp and the malicious non-E2EE webapp. There's no good way to detect it. There are people out there who really like end to end security, but don't like browser-based e2ee because it doesn't have end to end security. Note: https://www.cyph.com/ https://www.cyph.com/ is a bbE2EE chat system.