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| from here and here (image source) |
Making shivs out of computer memory is definitely an unusual choice. I suppose they could also make a garrote out of a USB cable, or shuriken out of DVDs.
But as far as cyberweapons go, these are as close to satisfying the criteria as anything else.
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| from here and here (image source) |
Not everything needs to be made into a smart device, and arguably some things definitely shouldn't. App-enabled handguns seem like a terrible idea.
What features do you suppose the electronics in this handgun actually implement and what do you suppose the consequences are if the battery dies in the middle of operation, or if the function falls under the control of a malicious remote individual? I wouldn't count on good outcomes in either situation.