HN Gopher Feed (2017-07-25) - page 1 of 10 ___________________________________________________________________
Smart gun beaten by dumb magnets
23 points by 0xbadf00d
http://hackaday.com/2017/07/25/smart-gun-beaten-by-dumb-magnets/___________________________________________________________________
haburka - 1 hours ago
This could have been prevented if they had hired someone to test
designs against potential hacking during prototyping but I don't
believe that it would have been worth the money. Unless someone
knows exactly how to put the magnet against the gun, they can't
beat it. Everything is vulnerable to some risk and I believe that
this gun is sufficiently well designed to prevent most if not all
would be threats.
bifrost - 41 minutes ago
This gun is extremely poorly designed in the case that it doesn't
fire when the person using it can't fire it when they need to.
This is a solution in search of a problem because the number of
deaths it will prevent is likely zero.
kevin_thibedeau - 19 minutes ago
This is a problem with all smart guns. They necessarily have a
non-zero failure rate associated with the electronic interlock.
An integrated physical key operated lock would be more
reliable.
Nition - 14 minutes ago
Good point, having a key instead of a watch, and inserting
the key into the gun to make it work, sounds far more
reliable and only slightly more difficult for the user."But
the criminal could steal the key." Yeah but they could also
steal your watch...
MBCook - 11 minutes ago
And that would help in situations where you KNOW you might
use your weapon, but if you had a sudden need to use your
weapon and it wasn't already unlocked it would be the kind of
failure law enforcement is very afraid of.
germinalphrase - 35 minutes ago
Considering the largely accepted belief that a knife wielding
attacker can cover 20 feet more quickly than an average trained
individual can draw and fire a pistol (it is - at best - very
close), it would seem to me that the jammer is the mostly
problematic exploit. It firmly tips the engagement in favor of
the knife wielding attacker without the pistol wielding defender
understanding their weapon had been disabled until it is far too
late to change tactics.I don't see law enforcement ever adopting
smart weapons.
MBCook - 27 minutes ago
The military has plenty of anti-jamming technology don't they?
I'm guessing if they wanted to do this right there would be
ways that are a lot more sturdy than something a simple RF
jammer can stop.
LeifCarrotson - 1 minutes ago
> anti-jamming technologyLike what? SNR-boosting encoding
tricks to get around high-power noise are not going to be
fast like you want with a gun. The form factor needs to be
omnidirectional. You don't have high power available in a
portable device. You can't just change frequencies, because
an attacker is likely broadcasting high-bandwidth noise. And
you don't know whether the user needs it to fail safe (the
bad guys got the gun) or fail hot (the good guys need to use
the gun). After that, physics doesn't leave a lot of other
options for technology to fix anything!
Animats - 17 minutes ago
There's a very simple technology for this.[1] It's a purely
mechanical gun lock operated by a magnetized ring on the user's
finger. Some cops use it, in case someone grabs their gun. It's
useful to cops who have to work in dense crowds, like transit
police. About 10% of cops who are shot are shot with their own
gun.[1] http://www.smartlock.com/smartgun_detail-r.htm