You can add location information to your Tweets, such as your city or precise location, from the web and via third-party applications. You always have the option to delete your Tweet location history. Learn more
If you need more evidence that the Mordechai Guri "covert channels" series is a paper mill... I already got *three people* jokingly suggesting channels in replies to my previous tweet and *he'd already done those*. Temperature, CD-ROM drive speed, power consumption. Done them all
Like come on, my random twitter followers can joke around and come up with the entire premise behind his papers. And then the rest of the paper is minimum-effort, always using the simplest technique that works, no optimization nor fancy modulation.
In 2015 he literally did a "GSM" version of the "WiFi" channel. Same exact approach. A computer with an 800MHz/DDR-1600 RAM bus spitting out 800MHz GSM-band noise. This new paper is literally 100% approach copypasta. He just changed the frequency and the receiver.
Except last time he wasn't using an off-the-shelf black box GSM baseband, but patching OsmocomBB, a fully open source highly documented reverse engineered baseband stack. But he could only get 1.5 bit/sec out of it... because in fact he has no idea what he's doing.
when I saw this passed around I immediately thought "man this is terrible news for someone who lets a bad actor very close to an already compromised airgapped system for extended periods of time"
Sensitive information disclosure via controlled IBM PCjr and IBM PC model 5150 cassette motor relay operation
what about wiggling the cdrom tray open/close fast enough
Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.
