Facebook is taking necessary steps to increase user security by partnering with Kaspersky, ESET, F-Secure, and Trendmicro to warn users in case any security issue is detected.
Tool # 1 (Kaspersky)
If the Facebook team has detected suspicious behavior from your account and it looks as though it might be infected, the social network will suggest you scan your device for security issues. Upon logging in, you will see a warning page like this, offering the security scan.
One of the programs, which helps to fix Facebook users’ accounts, is Kaspersky Malware Scan for Facebook. In the last 3 months alone they have protected over 260,000 Facebook users. A quick download will generate a scan window like this:
We advise users to be patient and wait for the scan to complete. Any security issues, along with the suggested steps to resolve them, will be displayed upon scan completion. You can also try Kaspersky free security tools