Back in July, a security researcher disclosed a zero-day vulnerability in Mac OS X that allowed attackers to obtain unrestricted root user privileges with the help of code that even fits in a tweet.
The same vulnerability has now been upgraded to again infect Mac OS X machines even after Apple fixed the issue last month. The privilege-escalation bug was once used to circumvent security protections and gain full control of Mac computers. The vulnerability then allowed attackers to install malware and adware onto a target Mac, without requiring victims to enter system passwords.Read more
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