Some kinds of documents and things must be locked away from unauthorized access. For centuries, people use locks and safes to guard their important belongings. However, those bulky safes are so old fashioned nowadays! The keys can be stolen or lost, password - revealed or forgotten. Truly modern safes are based on personal identification that cannot be lost or replicated. One of these methods is fingerprint identification - one of the most commonly used biometric identification nowadays. Fingerprints are very hard or almost impossible to replicate, and there is no need to worry about losing key or forgetting password - while your fingers are with you, you will always be able to open that safe.