PHOENIX -- Locking your door at home to keep criminals out is a practical measure that makes many Valley residents feel secure every day.

But burglars are busy peddling their break-in tools on the Internet.

For as little as $5, anyone can buy a bump key that promises to exploit weaknesses of your locks and open doors in a matter of seconds.

Police in the Valley say it’s hard to track bump key burglars because of lack of evidence.

Safety Measures To Consider

But there are ways you can protect yourself.

The best option is to hire a locksmith to come to your house and retool your locks.

It’s an expensive choice, but very effective. It is important if you are buying a new home, because those locks were originally tooled for several keys.

If you’re looking for a less expensive option, consider buying new locks.

At the store, look for locks marked with Underwriters Laboratory (UL) 437.

A couple brands with locks that fit this level are Schlage and Medeco.

Remember, locks are not your only defense against burglars. Police suggest making the house look like someone is home and meeting your neighbors.

You may also want to talk to your local police department about forming a neighborhood watch group.