On March 4, 2016, Unit 42, the Palo Alto Networks threat intelligence team, identified the first ever fully functional ransomware targeting Mac OS X users. KeRanger has the ability to encrypt and prevent access to sensitive files, and demands a $400 ransom payment to restore access. The emergence of KeRanger represents a continuation of the ransomware threat observed in the broader attack landscape, and is a reminder that all platforms are subject to malicious activity.

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