My money is on they put a database password or equivalent credential in whatever agent was running on the employee workstations and somebody found it.

Days without Meta violating basic principles of honesty, dignity, and decency: zero.
Days without Meta reverting harmful decisions only because people outraged at it: zero.

(And no, neither counter is broken. They don’t reach one… because.)

There’s really a competition for which billionaire is the most out of touch with humanity. They keep outdoing each other.