From a privacy perspective, specifically metadata is important and why Signal and WhatsApp fall down even though they may have secure E2EE.
Actually, signal minimize metadata. The sealer metadata is encrypted, only the address remains unencrypted. Also, signal received subpoenas in 2016 from from the Eastern District of Virginia and in 2021 from from the United States Attorney’s Office in the Central District of California. Those subpoenas requested a wide variety of information that fell into this nonexistent category, including the addresses of the users, their correspondence, and the name associated with each account. In fact, signal only provided;
Unix timestamps for when each account was created
Unix timestamps for date that each account last connected to the Signal service.
Actually, signal minimize metadata. The sealer metadata is encrypted, only the address remains unencrypted. Also, signal received subpoenas in 2016 from from the Eastern District of Virginia and in 2021 from from the United States Attorney’s Office in the Central District of California. Those subpoenas requested a wide variety of information that fell into this nonexistent category, including the addresses of the users, their correspondence, and the name associated with each account. In fact, signal only provided;