I have $11 worth of coin on Trustwallet which I used to do some testing and forgot it there until today. After I saw this thread, the exact notification popped up on my phone and I clicked on it, it took me to Trustwallet. I saw nothing than my $11 coins. I will keep on checking to know if the coin will disappear or not.
I think some details are errors that the OP may not know about. if just clicking on the link and taking you to the original trustwallet app and nothing happens, the hack failed. Maybe a hacked trustwallet user entered his private key on a phishing site sent by a pop-up notification.
and some pop-up notifications also appear because several stations are visited and provide these notifications masquerading as a trustwallet application. I often experience some strange notifications that appear from the chrome browser and from unclear websites. make sure to clear history and delete automatic notifications on visited websites.