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"FCM Messages Test Notification" - Security Issue ? 2 Recommended Answers 227 Replies 394 Upvotes
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See attached. 

Received two such notifications for Hangouts on my Android 7.0 phone, for the first time this morning, running latest Hangouts version. 
 
Has anyone else encountered this ? 
Is this a security bug in Hangouts ? 

The notifications are entitled "FCM Messages" with content "Test Notification!!!!".
The excessive exclamation marks especially suggest illegitimate source ... 


Uninstalled the app for now just in case. 
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I have the same issue. 4 messages within the last two hours... Any idea?
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 I'm getting them too and also concerned.
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Got the same
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I got the same thing multiple times today. No clue what it's about but the multiple exclamation points are how scammers write, and it seems strange...
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I do receive this kind of notification, 4 times in a row, i don't know what is going on. Please let me know if you have more details about this!
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Same issue here. Uninstalling is a good idea, but I could only disable it. Looking forward to receiving clarifications from Google.
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I received the same just now,don't know what to do? Is it a hacking attempt? Or a msg after hacked?
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Same here in my Android mobile from 2 hours
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I have the same problem.
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Same notification here. I don't even use Google Hangout. I would like to know who these notifications are coming from.
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I have received 3 in the last half hour. No idea why. I've used hangouts since it started and have never received one of these. They do not or show on my list of regular notificatiins, just in my status bar on my phone which is even stranger.
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I also encountered this and wondering what it is.
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I just got the same. Following to see if anyone has any answers.
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I'm getting the same notification.. i dn knw y.. can anyone tell whats exactly going on
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JUST happened to me. I'm on a Pixel 4 XL.
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Same here.
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Same issue...4 messages this morning so far
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Hello,
I too received this notification. Also around the same time ,google showed one compromised password security alert to me which seems highly suspicious. 
I am not much aware on this topic and was searching google regarding this and found your post.
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I've seen like 3-4 today
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Same issue with me. Highly concerned. If anyone has any idea, kindly share.
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Yes me too, I'm just putting this reply here so if you get any answers I can see it
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Same hope we get some info
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same here!
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Same. 4 messages.
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I received such a notification too, then 2 more shortly thereafter. They only show up as notifications, and tapping one opens Hangouts, but they don't show up anywhere in the app that I can see.

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Same, I just received my 3rd notification.
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I got the same 2 times
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The same for me
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I have also received such messages 5 times within 20 mins just now.
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Same in Belgium , four times ...
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Got it too
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Same here!  How do I block these?
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Happened to me twice right now. Anyone have any idea what this is?
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I also encounters the same issue.
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I've got 3 FCM notifications within 30mins, if anyone knew about this, please let us know,,,,
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Yes same happened with me too
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Me too, just few minutes ago. Should I click on these notifications to check??
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I too received such messages.. 3 times.... have uninstalled the app for now.. please if someone has any answer let me know whats tht?
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Same four messages here.
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I have the same issue. pareil!
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Are they testing app or someone hacking them.
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Hi all, thank you for the reports. 
Hangouts is looking into this issue.

Update: Google is investigating and will provide more information as soon as possible.
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help me pleas
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