Why Number Locks Aren't Safe

You Shouldn't Use Number Locks

Michelle Knudson
People use number locks without thinking much of it. People who use number locks have a false sense of security. How many times do we see people with a briefcase that has a number lock on both sides of it? Many times people use one to keep important documents in briefcases. People with a locked briefcase think that they are safe from people breaking into their stuff, but their documents aren't safe. Some people don't realize how easy it is for someone to figure out the number code on a number lock or to use other tools to get the lock open.

A briefcase number lock is not fool proof since it can be opened up with a screw driver and pop open the briefcase which makes the lock displays the secret code number. It is a trick that many people don't realize. Another thing about number locks is that then that secret code numbers can be figured out if you spend enough time on it. The trick behind it is because when you switch the numbers back and forth the lock begins to loosen up and you can feel when you switch the numbers when you got one of them right or not.

The most difficult part is determining which number is the right one that you got right when you fiddle around with it. So thats why you have to switch the numbers around until you all the numbers it. Since there is only so many numbers on the number lock it should only take a few hours or less in order to get the secret code right. You may think that it will take forever, but it won't. You can get a number lock open quick since there is a limited amount of numbers and an order that they go in.

When you switch the numbers back and forth and able to tell when you get one right then you are getting close to getting the correct numbers. Eventually, you will get all the numbers right and it will open up. Most number locks are only 4 digits long and some of them are 5 digits long. The secret code is only 4 digits or 5 digits long usually. On a number lock you have 10 digits on each place for a digit then you have 4 or 5 digits to figure out the secret code. So if you have 4 digits to figure out then you only need to keep switching through approximately four hundred different numbers combinations tries in order to finally get the right secret code. When you have 5 digits to figure out then you need to keep trying approximately five hundred different number combinations tries in order to get the secret code.

This may seem like a waste of time for someone to want to know how number locks work. It is always good information to know just in case you ever forget your secret code or need to open a lock for some reason.

Published by Michelle Knudson

Michelle is a freelance writer who has sold and published over 550 articles. Her writing strengths include, business, financial topics and relationships. You may contact her at michelle@michelleknudsonwrite...   View profile

  • People who use number locks have a false sense of security.
  • Secret code numbers can be figured out if you spend enough time on it.
  • A briefcase number lock is not fool proof.

6 Comments

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  • Jen 10/5/2010

    The author is an idiot. If there are 4 digits, how can there be only 400 combinations? 4 digits means 10 X 10 X 10 X 10 combination, that is ten thousand combinations!

  • Russ 9/28/2009

    This article is poorly researched and poorly written. I cannot imagine why it is published online.

  • Mutt 12/5/2008

    Such a pointless article. Anyone with half decent common sense would figure out that all you need to do is try the combinations. Your maths skills leave a touch to be desired too.

  • Rajesh T K 11/27/2007

    Most of the number locks can be opened with out having to worry about the number of combination as there is a trick to figure out the number very easily..

    I personally have opened many of them; except once where it was a relatively new briefcase (Echolac I suppose,though earlier ones of echolac I could open easily)with a new mechanism which was not similar to the usual one!.. :)

  • Nicole 7/10/2007

    If there are 4 digits in the combination you may have to try 9,999 different combinations, not just 400; if there are 5 digits you may have to try 99,999 combinations.

  • Storme 3/30/2007

    Eeeep. o.o Your writing style is... clumsy. It feels like I'm reading a gradeschool essay.

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