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Comment by ddxxdd | Hacker News Reader

Can't that be tested by banging on the safe to try to set something in motion?

It's set into the ground and surrounded by concrete poured around it. Seems like that might not do so good. If I wanted to cheaply find out what was in it I would drill a small hole and use a $20 endoscope. With a Home Depot drill rental you could be out $50 max vs 600-1000 for a locksmith.

A Home Depot drill is not going through the walls of any good safe.

Not to mention, just randomly drilling holes in a safe is a pretty bad idea, as it might contain a glass relocker, or any other relocker you might accidentally trigger.

Angle grinder and a shit load of disks will usually be sufficient. Takes a while, but unless they have James Bond style poison gas / acid / explosives etc embedded in the safe enclosure you will eventually make it through.

Safety tip: wear safety glasses and a face shield. If the disk breaks off, it can get nasty.

Examples:

Sewn up - https://www.thesun.co.uk/news/3319119/man-carves-open-throat...

Grinding wheel still in the face - https://www.reddit.com/r/Welding/comments/1sq6v7/wear_your_f...

Safes are rated in amount of time it takes to destructively open, usually with power tools. Anywhere from like 20 minutes to a few hours can be expected IIRC

> ... it might contain a glass relocker, or any other relocker ...

Explosives?

You vastly overestimate the security of safes. It might take a while and you might kill a few drill bits in the process, but you could definitely drill through most safes, especially in home installations.

As far as relockers go, you've already resorted to destructive methods. If you find that it's worth opening after drilling, then you'll find a way in.

This is an abandoned safe in a residential installation. It doesn't have any of that shit. In the extremely small chance that the safe contains anything at all and it has a relocker mechanism, well it doesn't really matter because you had to cut through the safe to get inside in the first place.

Someone on the thread mentioned that some safes have false floors that might not be possible to see with an endoscope.

A longer drill bit is the solution for that.

I didn't realize you could get an endoscope for $20. Turns out Amazon is full of 'em, some of which get really good (and apparently genuine) reviews.

Huh. I may have just figured out what I'm getting for that tricky friend on my shopping list.

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