FCM Messages in MS Teams

Occasional Contributor
Just now got 6-7 notifications saying- "Testing notification from Microsoft to investigate the problem."

Can you please confirm is it truly Microsoft because I doubt it is as if it would've been truly Microsoft then they would've sent one or at the max. three not 6-7.
1 Reply

@SusmitaPal This is not Microsoft, it is a security break in Google Firebase Cloud Messaging - see https://www.theregister.com/2020/08/28/google_firebase_spam/