I received this block from my Facebook today....
Your Computer Needs to Be Cleaned
It looks like your computer is being affected by malware. We’ll help you fix the problem to keep your account secure and prevent malware from spreading to friends. Malware is software that tries to steal personal information and causes problems when you use Facebook. Clicking or sharing links that contain spam can give your computer malware.
When I first got it I ran a scan using PCMatic two times. When I attempted to log back on to Facebook I received this error. Facebook requires I allow TrendMicro to go in and clean my computer, which I do not feel I need to do. I had TrendMicro for approximately 7-10 years before switching to PCMatic. Has anyone else ever experienced something like this from Facebook and is there any way around it. A bigger question is what can TrendMicro clean that PCMatic has missed, and how does Facebook even know? Facebook will NOT allow me to sign in until I approve the clean.