643-03-7881
That’s somebody’s SSN maybe (I just typed random numbers and added dashes). Knowing an SSN alone doesn’t enable a crook to do much of anything. They need to tie it to other information which proton presumably has. Now if I told you that number belonged to John Doe of Walla Walla, WA with this yahoo email and that September birthday, now an identity can be stolen with ease.
Remember when Eli Lily lost billions because an account with a blue check mark pretending to be them said they were giving insulin away for free?