As the Mac user base continues to grow, so does the malware threat.

McAfee Labs’ latest quarterly Threats Report was issued this week, revealing new macOS malware rose 53 percent during early 2017.

OSX/Dok, a new strain of “major scale” malware targeting macOS users, can bypass the Gatekeeper feature that’s designed to block malicious software.

The newly identified trojan, which prevents you from doing anything on your Mac until you install a bogus software update, also goes undetected by many antivirus programs.