The Home Security Episode – Locks, Doors, Cameras, and More!

In episode 89 of our monthly show Scott and Tom discuss everything you need to know about home security with physical security expert, Patrick McNeil. We delve deep into the world of locks, lock bumping, doors, windows, surveillance cameras, alarms, an… Continue reading The Home Security Episode – Locks, Doors, Cameras, and More!

Does pressing a car remote many times offer denial of service attack for rolling codes?

My understanding of remote car key fobs, and similar security devices with rolling codes, is that the key device is a transmitter that, each time the button is pressed, sends the next secret in a known sequence that is unique… Continue reading Does pressing a car remote many times offer denial of service attack for rolling codes?

Ridiculously Insecure Smart Lock

Tapplock sells an "unbreakable" Internet-connected lock that you can open with your fingerprint. It turns out that: The lock broadcasts its Bluetooth MAC address in the clear, and you can calculate the unlock key from it. Any Tapplock account an unlock every lock. You can open the lock with a screwdriver. Regarding the third flaw, the manufacturer has responded that… Continue reading Ridiculously Insecure Smart Lock

How vulnerable are rolling codes used in car keyfobs to simple replay attacks?

I’ve read this question – Vehicle remote key security, and I have a few simpler questions that are not addressed in that one.

I just received a whatsapp viral forward raising a few claims regarding security of car keyfobs. I feel that one… Continue reading How vulnerable are rolling codes used in car keyfobs to simple replay attacks?

4-dial combination padlock: Is it more secure to zero it out or to blindly spin the dials after locking?

I am partially responsible for some resources protected by a 4-dial combination lock like this one:

There are two things that people will usually do after they’ve locked it:

reset all the digits to 0, so that the combination reads 0000… Continue reading 4-dial combination padlock: Is it more secure to zero it out or to blindly spin the dials after locking?