Thousands of Facebook users complained that they had been infected by a virus through their accounts after they received a message claiming they had mentioned them in a comment. Facebook has now mitigated this threat and is blocking techniques used to spread malware from infected computers. Google has also removed at least one of the culprit extensions from the Chrome Web Store. The most affected countries were Brazil, Poland, Peru, Colombia, Mexico, Ecuador, Greece, Portugal, Tunisia, Venezuela, Germany and, finally, Israel.”]
Source: https://securelist.com/facebook-malware-tag-me-if-you-can/75237/