Phone scammers are taking advantage of the WannaCry ransomware attack to offer fake technical support.
Government agency CERT has issued a new warning tonight, about scammers telling people their computer has been or could be affected by the WannaCry ransomware.
The callers are often aggressive and will tell you to give them access to your computer so they can 'patch' the problem.
They will also tell you that this is the same issue you've heard about on the news and media recently.