[tomek_ycomb]

I think this not wrong but mildly misleading.

Whatsapp started encrypting messages after significant security issues in ~2012

It was purchased by Facebook under initially some administration separation terms in ~2014?

In 2016 it added e2e encryption. If I recall this was controversial because it limits fb ad potential on users.

I guess what I'm trying to say is that the timeline seems to me to still be pointing towards <<e2e came from Whatsapp not FB as an initiative, even if FB owned Whatsapp at the time.>>

Again you're not factually wrong, but I hope my restating of the timeline makes it more clear why i I think your reverse order point doesn't tell the same story.

[shiandow]

Your explanation is definitely better than mine. I just wanted to rebuke the notion that it was Signal who inspired Whatsapp to use e2e.