CHICAGO (WLS) -- More than a billion people use Facebook's Messenger app to communicate, but did you know that it can be hacked?
Hackers could access your account by sending spam or phishing messages.
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ABC7's Consumer Investigator Jason Knowles suggests blocking unwanted messages and calls on the app immediately.
Users should also avoid clicking on any suspicious messages, which could be hacking or phishing attempts.
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Another way users can protect their accounts is by turning on log-in alerts in the app's settings. It'll send a warning should anyone attempt to sign on from another device.