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Hacker detects a kill switch to take down the gun-toting robot dog
(interestingengineering.com)
And now that they know we know they are going to change/patch it.
Good, a 433Mhz backdoor can be triggered from devices much cheaper and smaller than a Flipper.
Flipper Zero is a portable Tamagotchi-like multi-functional device developed for interaction with access control systems. The device is able to read, copy, and emulate radio-frequency (RFID) tags, radio remotes, iButton, and digital access keys, along with a GPIO interface.