Thwarting Social Engineering Attacks Against Teams Federated Chat

A recent reported noted an increase in social engineering attack through Teams federated chat. You can stop these attacks by limiting external access to an allow list of known domains, which is what I do. Or you can depend on the technology built into Teams to detect suspicious connections and remind users about potential risk. This now extends to connections from brands commonly targeted by phishers.

https://office365itpros.com/2024/12/06/federated-chat-brand-impersonation/