[756] Sentry Safe Cut in Half FAST!

LockPickingLawyer · 3.3M views · 2018 · 4:55

Open on YouTube

Security & hackingWoodworking, metalworking & workshop skillsdemo

Why Hacker News recommends it

Used to illustrate that fire safes protect against fire and not theft, and that brute force often defeats low-security containers.

What it is

LockPickingLawyer shows a Sentry fire safe being cut in half with a saw in a few minutes. It is a short demonstration that these safes offer little protection against a determined thief.

Recommended by 1 HN commenters across 1 different months, 2018 to 2025.

What Hacker News said

Recommends bombcar · 2025-10 · on “10M people watched a YouTuber shim a lock; the lock company sued him – bad idea”

For surprise of tool used the saw vs safe are the best: [this video] The main thing locks do is make it noisy to get in.

Cites dangerface · 2018-10 · on “Ask HN: What secure personal file hosting solution do you use?”

They are supposed to and apparently work well, they do nothing to stop a thief so the fire safety is all they are good for. [this video]

Cites kube-system · 2022-06 · on “How to open a safe”

Finding vulnerabilities in low security locks is just an academic exercise. If you need high security, you are buying a product very different than a master lock, and you need to consider the integrity of the entire system it is connected to. Low security locks work mainly by deterrent, and even if they were without vulnerability, the container you’re attaching it to probably is vulnerable. Brute force attacks are the much more common scenario against low security locks, and there’s not much of a low cost solution to that; it requires expensive materials: [this video] If you put an unpickable lock on sheet metal box, you’re spending more money, but not actually improving security. The reason that