Protonmail Does Not Provide "End to End Encryption"
Professor Nadim Kobeissi mathematically
proved that Protonmail does not provide End to End Encryption. Meaning, Protonmail has the ability to decrypt their own user's data. When this was shown to be true, Protonmail users were outraged they had been lied to.
Protonmail was forced to issue a public statement. Their statement begins like you would expect it would.. by shitting on the security researcher that revealed their dishonesty. Then they continued to say: "We lied to our users because other email companies did". No apologies. They can decrypt any of their user's data be sending them scripts that allow them to do so. However they advertise that they can not.
Protonmail's admission proves they offer the same security that Gmail offers. Both Gmail and Protonmail offer encryption that they can decrypt whenever they want.