Comment by matthewdgreen

The best time to turn on ADP was before this happened. For folks not in the U.K., the second best time is right now. The more people who use it, the more disruptive it will be to turn off.

Keep in mind there are some risks with any E2EE service! You’ll need to store a backup key or nominate a backup contact, and there’s a risk you could lose data. Some web-based iCloud services don’t work (there is a mode to reactivate them, with obvious security consequences.) for what it’s worth, I’ve been using it for well over a year (including one dead phone and recovery) and from my perspective it's invisible and works perfectly.