Thunderspy: Difference between revisions

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== Impact ==
The security vulnerability may affect millions of Apple, Linux and Windows computers, as well as any computers manufactured before 2019, and some after that.<ref name="WRD-20200510" /><ref name="FRBS-20200511" /><ref name="TSY-2020" /> However, this impact is restricted mainly due to how precise a bad actor would have to be to execute the attack. Physical access to a machine with a vulnerable Thunderbolt controller is necessary, as well as a writable ROM chip for the Thunderbolt controller's firmware.<ref name="TSY-2020" /> Since ROM chips can come in a BGA format, this isn't always possible. Additionally, part of Thunderspy, specifically the portion involving re-writing of the firmware of the controller, requires the device to be in sleep<ref name="TSY-2020" />, or at least in some sort of powered-on state, to be effective. As some business machines feature intrusion detection features that cause the machine to power down the moment the back cover is removed, this attack is almost impossible on secured systems.
 
Due to the nature of attacks that require extended, physical access to hardware, it's unlikely the attack will affect users outside of a business or government environment.<ref>https://www.youtube.com/watch?v=c9Z3hQh0NxY</ref>