Microsoft Teams FCM Messages

Vendor: Microsoft

Product: Microsoft Teams

Component: Instant Messaging

Date: 27th August 2020

Target: Everyone

What's new

Microsoft Teams users may have received a notification on their mobile device 'FCM Messages : Test Notifications'. This is due to an exploit in Firebase Cloud Messaging (FCM) cross-platform messaging app which Teams and other collaborative software make use of.

A similar message was also received by users of Google Hangouts on 24 August.

How does this affect me?

  • The messages are harmless and more of an annoyance than a security breach.

What do I need to do?

  • Inform your users that if they receive a notification similar to "FCM Test Messages" they can safely ignore it.
  • Do not click the message and leave the notification unopened or delete it.
  • FCM will be patched by Microsoft, Google and other third-parties to prevent this exploit from being further abused.

References

Get in touch

Call us on 0333 000 3210 or Email us solutions@datcom.co.uk

Latest news...

COVID 19 New National Restrictions from 5 November

From the 5th November, the country will start a new four-week lockdown. Over this period Datcom will continue to provide the highest level of support and service to our clients, no matter whether you are working from home, in the office or on the road.

Read More

Getting the most from Microsoft 365

Are you getting the most from your Microsoft 365 subscription? Are you using Power Apps or Power Automate to help make efficiency and cultural improvements in your business? Here is an example at Datcom of how we used Power Apps to improve team members communication and to prompt team working.

Read More