A couple of our users received random notifications on the Teams mobile app this morning. The notification states "FCM Message". Anyone have an idea what's going on?

SuleimanDC Microsoft just sent this out so they are investigating.

Just found this thread on Reddit --> https://www.reddit.com/r/MicrosoftTeams/comments/ihghrq/test_notification_fcm/

SuleimanDC I received 5 notifications this morning "FCM Messages Test Notifications!!!!"seems it is related to an exploit lets hope that Microsoft or Google plug it soon, otherwise I'll be uninstalling the Teams app on my phone.

Bmandad4u If you say so.Three news articles about this:https://cybernews.com/security/exposed-google-keys-leaves-billions-of-users-open-to-mass-spam-and-phishing-notifications/https://portswigger.net/daily-swig/google-firebase-messaging-vulnerability-allowed-attackers-to-send-push-notifications-to-app-usershttps://code2care.org/q/fcm-messages-test-notification-microsoft-teams-google-hangouts-push-alert-firebaseThe people that found the exploit:https://twitter.com/y_sodhahttps://twitter.com/absshax EDIT: I'm also not too hasty to say that something written in a language that isn't the writers native tongue is untrue. Not everyone is blessed with the understanding of all languages in the world

Hi Raffe80 That was a screen shot from our 365 service health page, This is the latest:

FCM Message Notifications | Microsoft Community Hub

ChristianBergstrom
Silver Contributor
Aug 27, 2020
”We've isolated the source of the issue and applied a mitigation. We've confirmed that no further unexpected notifications are being sent to users' Android devices. Additional details can be found in the admin center under TM221041.”
manas11
Copper Contributor
Aug 27, 2020
SuleimanDC Microsoft needs to solve this asap.
eduwagner30
Copper Contributor
Aug 27, 2020
I've received at leat 15 notifications this morning.

As soon as I figured out what was going on I uninstalled Teams. Let's hope they get a fix soon.
MirnesL
Copper Contributor
Aug 27, 2020
7-8 messages this morning, 12-13 this afternoon
Sachin007
Copper Contributor
Aug 27, 2020
SuleimanDC

Hi There,

I am also getting the same alerts from today morning. I have received 14 Notification today.
Its this kind of spam/attack!!!!
- ThereseSolimeno
  Microsoft
  Aug 31, 2020
  Sachin007 SuleimanDC ChristianBergstrom Below is the response I received from the engineering program manager:
  
  We apologize for the inconvenience. We've isolated the source of the issue and applied a mitigation and confirmed that no further unexpected notifications are being sent to users Android devices. For more information please refer to incident id TM221041 on your M365 service health dashboard portal."
SusmitaPal
Copper Contributor
Aug 27, 2020
Just now got many notifications saying- "Testing notification from Microsoft to investigate the problem". Is it really Microsoft?
Duray Akar
Copper Contributor
Aug 27, 2020
Woke up to this as well
- CSBell
  Copper Contributor
  Aug 27, 2020
  Also got seven of these, each with more s added to notifications.
SusmitaPal
Copper Contributor
Aug 27, 2020
I too faced the same issue. Today in the afternoon, I received at least 8 notifications- "Test Notificationsss!!!" SuleimanDC
FrankMiyagui
Copper Contributor
Aug 27, 2020
Just to inform that I received 7 messages in Brazil this morning (Aug 27, 2020).
"FCM Messages Test Notificationsss"
Cbabu
Copper Contributor
Aug 27, 2020
I am one of the person's received the messages around 10 notifications

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FCM Message Notifications

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