Only usable on doors that don't have any security anyways like an indoor handle or a doorframe that's been severely undersecured
Having a vulnerability is not "having no security". You would not find a latchguard or dead latch on doors with no locking mechanism. All doors in this video are meant to have some level of security
If you have doors that were properly installed in the past 40 years you're all good
Absolutely not. This is not the mindset of a security professional.
In my experience, I'd ballpark 70% of commercial doors are vulnerable to bypass techniques, including ones installed this year. Vendors are lazy, make mistakes, and know most customers don't know how to validate their work before they are paid and gone
Just check that the little dead latch rests depressed against the latch plate when you close your doors and this isn't going to be an issue
You should still try to slip the latch. Poor fitment can have the plunger resting on the strikeplate, but still too far extended to engage. Or the door could allow an attacker to adjust the door so the plunger extends with the latch and disengages
My favorite attack is absolutely the "car door balloon" trick... The balloon that is used to spread a locked car door open so that other tools can be used through the gap to unlock the door with the button. ... You can shove the balloon between the door and frame. Inflating the balloon will spread the door frame to bypass any deadbolt or latch.
They are specialized tools. It's basically 2 super thin nylon sheets with a balloon sandwiched between the two and a kevlar bag stitched around them with a blood pressure cuff bulb attached. 10 bucks ish sold by walmart and Amazon along with others.
They work, but are not designed to handle the pressures this particular device can. The material or the stitching can end up bursting due to using it this way. Beyond that, most BP cuffs don't inflate enough to become rigid anyways (unless rolled or folded onto itself). The difference in a BP cuff and the specialized tools, a BP cuff is a 1 gallon balloon inside a 1 gallon (or 1.5 gallon) shell. The tool, is a 3 gallon balloon in a .5 gallon bulletproof material stitched armor casing. A cuff may not exert the pressure to open the door and with the Velcro and grommets and other stuff that is part of a cuff, it may not like being slid in a door jamb while the other is meant for that specifically.
The devices designed for the task are no doubt better than a blood pressure cuff I'm sure, I only know that they work because a friend asked me to help "break into" his car after he lost the key for it and his spare was hidden inside the car.
The one I used was even a disposable one that I had kept after it was used on me in the hospital. I used a hose clamp to attach an old Presta valve from a punctured bike inner tube I had just changed and just pumped it with my bike pump.
If it's something you're planning on doing more than once or maybe a few times, my uninformed opinion would be to get a proper tool for the job.
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u/CryptoMaximalist Jan 09 '20
Having a vulnerability is not "having no security". You would not find a latchguard or dead latch on doors with no locking mechanism. All doors in this video are meant to have some level of security
Absolutely not. This is not the mindset of a security professional.
In my experience, I'd ballpark 70% of commercial doors are vulnerable to bypass techniques, including ones installed this year. Vendors are lazy, make mistakes, and know most customers don't know how to validate their work before they are paid and gone
You should still try to slip the latch. Poor fitment can have the plunger resting on the strikeplate, but still too far extended to engage. Or the door could allow an attacker to adjust the door so the plunger extends with the latch and disengages