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Extremely serious Mac bug gives hackers total control

Extremely serious Mac bug gives hackers total control
PHOTO COURTESY OF SHUTTERSTOCK

Apple's operating system OS X is under serious attack, as we've been telling you. Hackers are using malware to infect Macs using the OS X operating system.

On Monday, Malwarebytes said it found a new vulnerability. Once hackers are in, they're installing malicious programs like adware and junkware. Worse, hackers don't need a password to take control of your Mac.

These zero-day bugs, as they're called, are tough to fix because they often bypass your Mac's security systems. The malware is programmed to delete itself after it gets in.

Don't panic, Apple will almost definitely issue a fix soon. In fact, the attack appears to be limited to OS X version 10.10.4. As of Monday, the previously vulnerable beta version of 10.10.5 seems to have been fixed.

Security researcher Stefan Esser (@i0n1c) tweeted about the fix:

"Looks like dropping DYLD_PRINT_TO_FILE exploit resulted in Apple having fixed it in OS X 10.10.5 beta '2' - suddenly they can work 'faster' "

Esser has issued his own patch, but use that at your own risk. In the meantime, make sure you're protected with a powerful antivirus tool like the Avast Free Antivirus 2015 we've told you about. (Read more about Avast Free Antivirus here.)

Meanwhile, a beta version of 10.11 doesn't seem to be vulnerable to these attacks.

Not sure which version of OS X you have? Find out here.

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Source: Ars Technica
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