Historically, all data was encrypted locally before being sent to the other device. Now, by default, some data will be local-only encrypted, and some won't (the

Historically, all data was encrypted locally before being sent to the other device. Now, by default, some data will be local-only encrypted, and some won't (the motivation being recovery services). There are plans though to have an option to locally encrypt all data. https://wiki.mozilla.org/Identity/AttachedServices/Architecture#Data_Security https://wiki.mozilla.org/Identity/AttachedServices/Architect...