The Disadvantage of Pin Tumbler Lock is More and More Obvious

The Pin Tumbler Lock has been developed for over 150 years, it is very common and widely used in the market. However, with the widely-utilized of pin tumbler lock technology, the disadvantage of Pin Tumbler Lock has become more and more obvious. Below are three aspects:

1.The pin tumbler part was exposed and has short operating stroke, which can be touched directly by something like wire hook and opened through some technology.
2.Keys that are not match for its original lock can insert into the lock core, which increase the probability of cross unlock. 
3.Keys can be copied easily, you can find someone to copy a key for you everywhere in the market.