Noted security expert Marc Weber Tobias contributes The Lockdown, exposing the shoddy security you may depend on.

Part I: Methods of attack, an overview

All of these conventional locks look secure, but which really are? In the real world, none of them, and this is only a fraction of what ostensibly protects the consumer. This series of articles will describe what makes a lock secure and what is hype by the lock manufacturers.

In The Lockdown: Locked but not secure (see also part 2), the technique of "bumping" was described in detail, alerting Engadget readers to the vulnerability of virtually every pin tumbler lock from simple and rapid bypass. In this sequel, Marc analyzes mechanical locks and what really makes them secure or easy to defeat. Whether you are a consumer or security specialist, you need to understand the criteria established by UL (Underwriters Laboratories) and other rating organizations to define the term "high security," because some manufacturers will try to mislead the public into believing that their locks are secure, when in fact they are not. Read on.

Anyone who knows anything about locks and lock picking knows that most locks on most doors -- the tumbler variety -- can be picked with a little skill and a couple of tools. But what would you say to the frightening truth that lying before the world these hundreds and hundreds of years we've been using tumbler locks, was a simple technique that allows an intruder to quietly, quickly, easily open any lock for the cost of a copied key? It's called bump keying, and we can assure you it has nothing to do with certain white narcotics. By simply cutting some keys down to serrated-like edges of sharp, even peaks and valleys, an amateur can break into a home in less time than it takes to disassemble a bic pen. Watch as a master locksmith walks up to his own shop, bumps a key, and cruises right in only to declare that his own front door is now no longer more secure than it would be using a $10 lock (after the break). The cheap, easy, no-mess skeleton key: coming to a robbery near you. Alert your insurance agents, everybody. [Warning: PDF link!]

[Via MAKE: Blog]