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Reblogged by slightlyoff@toot.cafe ("Alex Russell"):
agreenberg@infosec.exchange ("Andy Greenberg") wrote:
This weekend, pro-Russian saboteurs halted more than 20 Polish trains, likely to hamper Ukraine's allies. @LukaszOlejnik figured out how they did it: Broadcasting three tones at a certain radio frequency triggers a "radio-stop" command. Anyone can with as little as $30 of equipment. https://www.wired.com/story/poland-train-radio-stop-attack/