“On January 29, 2015, the U.S. Patent & Trademark Office published a patent application from Apple that reveals a solution to counter a common hacking method involving clock overdriving,” Jack Purcher reports for Patently Apple.
“A common method used to attack systems is to overdrive the clock input into one of the processing chips in the system,” Purcher reports. “Apple notes that in order to help defend a system from being affected by clock attacks, some SoCs may include a clock monitoring circuit. A clock monitoring circuit, or clock monitor, is a means for determining if a clock signal is running at a frequency above or below a designated frequency.”
Read more in the full article here.
MacDailyNews Take: Clockblockers!
[Thanks to MacDailyNews Reader “Arline M.” for the heads up.]