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A Kensington lock is a physical security mechanism used to anchor laptops and other equipment to a fixed location, providing a basic deterrent against theft.

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About this video

A Kensington lock is a physical security mechanism designed to anchor portable equipment, such as laptops and projectors, to a fixed location. It fits into a small, dedicated slot built into many devices, which can resemble a USB-C port at first glance but is slightly different in shape and size. The lock engages through a pin-and-twist mechanism operated by a key, creating a cable-based connection between the device and an immovable object. While Kensington locks are a common and widely recognized physical security control, their protective value is limited. The mechanism can be defeated with moderate force, making it ineffective against a determined adversary. It is best understood as a deterrent control rather than a hardened security measure, discouraging opportunistic theft rather than preventing a deliberate one. For environments requiring stronger physical security, Kensington locks should be treated as one layer within a broader physical security strategy rather than a standalone solution.

What you'll learn

What's covered

Kensington Security Lock

Key terms

Physical Security
The use of tangible controls — such as locks, barriers, surveillance cameras, and access badges — to protect facilities, hardware, and infrastructure from unauthorized physical access, theft, or damage.
Kensington Security Lock
A physical security mechanism that inserts into a small reinforced port on portable equipment such as laptops to anchor the device to a fixed object and deter theft.
Asset
Any resource of value to an organization, including hardware, software, data, and personnel.

Topics

Physical Security Kensington Lock Endpoint Security Theft Prevention Mobile Device Security

Transcript

Locking Equipment to an Area

There are times when we need to lock something down to a certain area. An example might be a laptop. Here's a laptop that I have, and there is a way we can do that: there's something called a Kensington lock, and we can lock equipment with it.

There's a little port right there, or what looks like a port. It actually looks like a USB-C port, but it's a little different — it's a little more square, and it actually is a different size. So it might look like a port at first glance, but it's actually a Kensington lock, which is a special lock that can go in there and lock this laptop. I've used it for things like projectors, and there's other equipment that will have the same little hole on it. It's designed to lock a computer down to an area.

How the Lock Works

Kensington, I believe, is a brand that's out there. It's just a few pins that go into there, and then one twist — you use a key to twist that.

I can tell you right now that this is not a great way to lock things up. It keeps honest people honest for the most part, but what somebody can do is go and just kind of crack it, and it comes right out. So for most equipment I wouldn't say that this is a very good way to lock it down, but it's better than nothing.

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