A privilege-escalation bug was identified in the latest version of Apple’s OS X this week by security researcher Stefan Esser. The vulnerability reportedly provides hackers with root user privileges that make it possible to infect Macs with rootkits and other malware. This type of bug is commonly used to bypass security protections created for applications and operating systems. According to Esser, the vulnerability can be found in OS X Yosemite 10.10.4 and the beta version of 10.10.5, but not in the recent beta version of El Capitan 10.11. Continue reading Security Researcher Reports Privilege-Escalation Bug in OS X