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Why you shouldn't freak out about this week's scary-sounding Mac exploits Researchers document two OS X security flaws that shouldn't cause you to lose sleep, as severe as they sound. These cats aren't worried. Glenn Fleishman | @GlennF Senior Contributor, Macworld Aug 5, 2015 2:05 One set of researchers explains how a modification to your Macintosh’s boot-up firmware can persist undetectably and spread through peripherals to other computers. Another researcher’s work from a month ago is found in the wild, installing adware through a hidden escalation in user privileges. Both sound terrible, but neither is quite what it seems. De-escalate...

Researchers Trammel Hudson and Xeno Kovah have built a self-replicating Apple firmware malware that can infect peripherals to spread to new computers. The ThunderStrike 2 malware is the second iteration of the attack forged earlier this year and liberates the requirement for attackers to have physical access to machines. Hudson says while his proof of concept is deliberately noisy, displaying a logo during boot, a real attack could be made surreptitious through virtualisation or system management mode."Thunderstrike 2 starts with a local root privilege exploit that can load a kernel module to give it access to raw memory [and] can...

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