For every person and for every meeting, Meet generates a unique encryption key, which only lives as long as the meeting, is never stored to disk, and is transmitted in an encrypted and secured RPC (remote procedure call) during the meeting setup. Security is an integral part of all our operations at Google.

Google may soon add end-to-end encryption for RCS – Naked May 27, 2020 encryption - Is Google Talk secure - Super User Google Talk uses the XMPP (Jabber) protocol, with SSL encryption layer - the same that's used for HTTP ("HTTPS") and many other programs. But as Wil says in his answer, some companies may have SSL proxies installed, and monitor all communications that way.

Google also says that end-to-end encryption of video chats wouldn't be possible while still supporting features like "the ability to record meetings, automatic captioning, cloud-based media

Google's more limited adoption of that same encryption system may signal that the company is looking for a path that will please its privacy-seeking users without entirely antagonizing law May 23, 2016 · “Google’s decision to disable end-to-end encryption by default in its new #Allo chat app is dangerous, and makes it unsafe,” Edward Snowden tweeted. “Avoid it for now.” But other privacy

May 24, 2020