Robinhood:
A Phone Call, 7 Million Users
A single vishing call -- the attacker posing as legitimate support and tricking a customer-service employee into installing remote-access software -- exposed contact information for 7 million Robinhood users.
Threat ActorUnidentified
Nov 3
Vishing call grants internal system access
T1598.004
Voice phishing (vishing) against a support employee
Nov 8
Breach disclosed publicly