Acne

Ralph Winn asked:


Security expert Marc Weber Tobias is worried about your front door . . . and your back door, your side door, your windows, and your garage door. His expertise focuses on securing doors and windows, and he knows about the most common threats to that security. One common security threat that has been on the rise since its discovery by locksmiths in Denmark in the 1970s is “lock bumping.” As Tobias can tell you, securing doors and windows - and ultimately, your loved ones and valuables - takes more than the basic lock these days.

What is a “Bump” Key?

A “bump” key works by tricking the tumblers in a pin lock to fall into the correct place for just an instant, but long enough for someone to turn the key and unlock the door. A basic key, a sturdy file, a little pressure, and a gentle “bump” against the key is enough to knock the pin tumblers into place and pop a lock open.

“Any pin tumbler lock that utilizes two or more moving pins within each chamber is at risk. Door locks, post office locks, file cabinet locks, access control override locks, and padlocks. All of them can be bumped if you have the key that will fit the keyway and has been properly cut . . . Are there exceptions? Yes. Can every conventional lock be bumped open? No, but statistically, a very high percentage can,” says Tobias in his online column “The Lockdown.”

Not only can a criminal easily get inside, but you may run into insurance troubles if there is no sign of forced entry. A “bump key” leaves no marks or scratches. It looks as though someone had a key to unlock the door. They did, technically, have a key - a “universal” key.

What can you do to ensure that you are properly securing doors and windows? You can install advanced, contemporary lock technology that has addressed the “bump” key threat and made it irrelevant.

Securing Doors and Windows Against Bump Keys and Other Tricks

Fortunately, since the “bump” trick was developed over 30 years ago, security companies have had time to come up with answers to the threat. If you have locks built before 2005, you might want to consider having them replaced with these more secure models:

? Medco - In 2005, Medco introduced its response to the bump key problem by adding an innovation to the design of all of their locks. A piece known as the M3, included in all their models, is an additional pin that is not controlled by the grooves of the key, like a traditional pin, but by the forward motion of the key. A simple bump cannot cheat the M3 into unlocking position. The added level of security within the lock itself helps in securing doors and windows.

? Schlage -The Schlage Primus model increases the complexity of a lock’s inner workings by adding a second set of pins along the side of the key that must also be properly manipulated to unlock the door.

Additionally, electronic locks, magnetic locks, and locks using rotating disks are not vulnerable to this “bump” attack.

Extra Protection When Securing Doors and Windows

When you are at home, it’s a good idea to activate that second line of lock defense - the hidden deadbolt, which has no external keyhole. Even if someone bumps their way through the first lock, the hidden deadbolt will stop them long enough to make them give up. A criminal who wants the ease of a bump entry will probably not resort to crowbars and kicking once their bump attempt is blocked by a second lock.

Remarks Tobias: “Yes, locks do matter in protecting a residence. Many burglaries are crimes of opportunity. If the locks prevent bumping and that is the chosen method of attack, then the burglary may not occur.”



JONATHAN

Jeff King asked:


Through inexpensive tools and a little practice, lock bumping can be done by anyone

Deadbolts. Chains. Security systems. It seems people will go to any length to keep their home and their belongings safe. But even when the homeowners get smart, so do the crooks. For every lock out there, someone has figured out a way to open it. In some cases, getting in involves lock bumping.

On many locks found on residences, a pin tumbler lock mechanism is in use. Inside the lock there are a series of cylinders known as pins. When a key with cuts corresponding to these pins’ shapes and positions is inserted into the lock’s keyway, the pins are pushed back by a series of small springs and the lock is opened. From inexpensive to very pricey locks, pin tumbler locks all work on this same principle and have been in use since the ancient Egyptians developed the concept in 2000 BC.

Several thousand years younger than the lock itself, lock bumping is a type of lock picking which involves what’s known as a lock bumping key. Much like a skeleton key, a bump key can fit into any pin tumbler lock. Bump keys are created by filing down a key blank to about one millimeter. The “bump” is then done by inserting the bump key into the lock and tapping the key with something such as a screwdriver until the lock’s pin stacks have been jolted enough to free the lock. The technique requires far less skill than traditional lock picking and can be mastered with some practice.

Scary as it may seem, lock bumping can be employed by practically anyone. A relatively new phenomenon, bumping has been seen in use by criminals in the US and Europe since 2002. Documents and several videos available on the Internet detail specifically how to bump a lock and can be instantly accessed by anyone with a computer. Bump keys first appeared in the early 1920’s when the idea was patented as a new method of lock picking. Currently, bump keys can be purchased online for a variety of lock types for as little as $3.00.

Because of the recent surge in the popularity of lock bumping, manufacturers are making strides to make their locks “bump proof”. Locks such as the Schlage Primus have sidebars that, when not aligned properly, keep bump keys from moving the lock’s mechanism. The Primus also involves pins filed to a specific angle that allow only their accompanying keys to open. Similarly, Medeco also makes a deadbolt for residences that is considered to be bump proof. Electronic locks or those that open using a key pad or don’t require a key are also bump proof just by their very nature.

More low-tech methods of preventing lock bumping include spraying the lock with WD-40. In theory, the lubricant, normally used on squeaky door hinges, make the pins inside the lock slippery. The pins then move more freely and may not make the lock entirely bump proof, but will take longer to open with a bump key. The thought is then that the criminal becomes impatient or tired of trying the lock and moves on.



CASEY

Cliff Berman asked:


Did you know that your house key could be bought on the Internet, letting criminals of all shapes and sizes into your home anytime they wanted? No, probably not. That’s the sort of thing that happens in crime novels, not real life. But the police (and your homeowners insurance) know that all today’s criminals have to do is go out on the web and not only do they have access to one of the locksmith community’s best secrets, they also have handy “how-to” guides to show them how to get into your home without letting anyone know they’ve even been there.

Have you ever heard of a bump key? Lock bumping is a technique that locksmiths have been using for the better part of a century to quickly disassemble a lock and allow them to either fix it or gain access to whatever it is that the lock was locking up. Unfortunately, bump keys aren’t a well kept secret anymore.

Homeowners insurance providers and security providers are doing their best to educate today’s homeowners on the potential dangers of bump keys. The principle is simple. In a standard pin tumbler lock, such as the type found on the doors of most homes and apartments, the lock is made up of a series of spring loaded stacks called pin stacks. When a key is slipped into the lock the pins line up along the edge, allowing the cylinder to turn and the door to open.

A bump key is a standard key that has been filed down. Criminals simply slip the bump key into the lock one notch short of full insertion, then “bump” the key with a hammer or other hard object. The impact causes the pins to jump, creating a small window in which the lock can be turned without damaging it. Even a criminal with little experience (and even less common sense) can enter your home without leaving any signs of breaking and entering behind.

There are things that you as a homeowner can do to protect your home against criminals using bump keys. First, recognize that well made pin tumbler locks are more vulnerable to lock bumping because the pins are designed to move smoothly, allowing the lock to open easily when a cheaper lock would jam. Electronic locks, magnetic locks and locks that use rotating discs aren’t vulnerable to lock bumping, and because the bump key has to have the same blank profile as the lock it’s made to open in order to work restricted or registered key profiles are safer. (As opposed to the keys you can go to WalMart and purchase for less than a dollar.)

The danger to homeowners comes in the ready availability of bump keys to today’s criminals. Bump keys for many different types of locks are sold on the web for anywhere from $1 to $200, depending on the type of lock it’s intended to open. There are a number of videos on YouTube that readily show criminals how to use this simple lock picking device, and even the recent features done on the process by today’s news channels have opened the door to more information than the average criminal needs to get into your home.

Talk to your security company today about protecting yourself from the danger of bump keys. Everyone in your house will sleep better when you do.



GEORGE