Q: I was suddenly logged out of my Facebook account on my desktop computer. When I tried to log in again, I received a message that said, "We've detected suspicious activity on your Facebook account and have temporarily locked it as a security precaution." The message said I was probably a victim of phishing (in which an attacker poses as a legitimate company to steal personal data,) and offered to walk me through a security check if I clicked "continue." But when I clicked "continue," nothing happened. Now I can't log in to Facebook via the Chrome or Firefox browsers on my computer, or the Facebook app on my phone. What should I do?
Nathan Bliss, Fort Lauderdale, Fla.
A: The big question is why your Facebook account was locked. The answer could be:
• Facebook thinks (rightly or wrongly) that you violated one of its many rules. For example, there are rules about posting advertising, making "Facebook friends" or not using your real name. (For details, see tinyurl.com/y4aqxox5).
• You may have logged on from several different devices lately, which Facebook might consider an indication that your account had been hacked.
• You may have been a victim of "phishing" if you were misdirected to a phony website that appeared to be Facebook and you logged in there. If that happened, someone else may have used your login credentials to gain access to your account, and Facebook may have detected it.
• The message may not have come from Facebook, but from a hacker. If that's the case, you may have downloaded some malware by clicking "continue."
Here's what you can do:
• Don't click on a link in any message, no matter who it appears to be from.