If you get a text from an unfamiliar number claiming to be your bank, that’s a big red flag. It may be a scam technique that takes you to a fake website made to look just like your bank’s mobile login screen. When you enter your credentials to see what “unusual activity” your bank wants you to address, the scammer takes it and takes over your account.
Banks are on the lookout for these types of scams, but as criminals get more sophisticated in imitating financial institutions, you can’t be too careful. If you get a message from your bank that you think is a real issue you need to address, use your bank’s secure mobile app or type in its web address yourself—don’t click on any links provided.