The U.S. Embassy in China sent its second alert in two weeks Friday to its citizens over unexplained health issues that have prompted the evacuation of a number of U.S. government employees working at a consulate in a southern city...
The incidents have raised fears the unexplained issues that started in Cuba in 2016 have expanded to other countries. China says it has uncovered no information that could point to a cause...
Friday's alert called for people to be attentive of symptoms including "dizziness, headaches, tinnitus, fatigue, cognitive issues, visual problems, ear complaints and hearing loss, and difficulty sleeping." It urged them "not to attempt to locate the source of any unidentified auditory sensation. Instead, move to a different location." more
Two theories. One solution.
A new theory.Attackers can cause potentially harmful hard drive and operating system crashes by playing sounds...
The attacks use sonic and ultrasonic sounds to disrupt magnetic HDDs as they read or write data. The researchers showed how the technique could stop some video-surveillance systems from recording live streams. Just 12 seconds of specially designed acoustic interference was all it took to cause video loss in a 720p system made by Ezviz. Sounds that lasted for 105 seconds or more caused the stock Western Digital 3.5 HDD in the device to stop recording altogether until it was rebooted.
