HP has issued a list of its printers that are vulnerable to a new "Critical" buffer overflow bug that can lead to exploitation. Fortunately, patched firmware for these models has also been released.
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A report claims that WhatsApp has been the target of a surveillance attack developed by Israel-based security firm NSO Group. WhatsApp has confirmed the vulnerability and is still investigating.
An independent researcher has uncovered a problem with the Android and browser versions of WhatsApp. An attacker can send around 4,000 smileys to their target which causes the victim's app to crash.