Discover hit me with a 3rd party ID check (Socure) after being a customer of theirs for decades. They locked me out of my account, including access to savings,

Discover hit me with a 3rd party ID check (Socure) after being a customer of theirs for decades. They locked me out of my account, including access to savings, CDs, and credit card e-statements until I complied. And they did it without any warning.