A security flaw in Facebook’s Messenger, discovered by online security company Check Point Software Technologies, allowed a malicious user to alter the messages in a Facebook chat after they were sent.
In one scenario, this could allow someone to send you an innocuous link in a Facebook chat, and later change it to a link that leads to a malware installation package, tricking you into infecting your system. The exploit, explained in detail over at the Check Point blog, consists of finding a message’s unique “message_id” identifier, then altering the message content and sending it back to Facebook which accepts the new content as genuine, without alerting the recipient of the change. For the full article click here
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