We detected suspicious patterns in the way your account was being used. These patterns suggest that you computer might be infected with malware.
In order to keep both your account and the files on your computer secure, your computer needs to be scanned and cleaned. Since we partner with F-Secure and Trend Micro, you can do this for free by logging in with Facebook and following the on-screen directions.
The software will scan your computer and try to isolate and delete any files that have been affected by malware. Learn more about F-Secure and Trend Micro.