A device produced as a fastening device which can either be designed as an electronic or mechanical-type, is called as a lock. Such fastening device can be released by a physical object, such as a keycard, RFID card, security token, key and fingerprint; by a combination; or by supplying a secret information, such as a password or a key code. Locks are basically divided into two basic categories, namely the locks with physical keys, such as the disc tumbler lock or Abloy lock, the wafer tumbler lock, the warded lock, the pin tumbler lock, and the lever tumbler lock; and the second one, is the locks with electronic keys, such as the keycard lock, the sidebar lock, the electronic lock, and the smart lock. The various types of lock are lever tumbler lock, time lock, padlock, rim lock, bicycle lock, cam lock, chamber lock, child safety lock, combination lock, cylinder lock, dead bolt, magnetic keyed lock, luggage lock, protector lock, police lock, chubb detector lock, lock screen, magnetic lock, and mortise lock.
A locksmith, is the term used by the people to call a person who is knowledgeable, skilled, completes an apprenticeship, undergone training of the profession called as locksmithing, and obtained a certificate or degree to work with locks and keys. Locksmiths are called in different ways and their titles can be based on their specialized skills, such as a residential locksmith, a forensic locksmith, an institutional locksmith, a security consultant, an automotive locksmith, and a commercial locksmith. The various services offered by a professional locksmith, includes fixing broken locks, making keys, installing security systems like alarms, opening or replacing locks, gaining entry to jammed or locked locks, extracting broken or snapped keys from any existing locks, implementing access control systems, gaining entry to safes, and working on existing door hardware, such as hinges, frame repairs, door closers, and electric strikes. The act of fitting and replacing keys is recognized as the most important part of locksmithing, and now that we are already living in the modern day and age, the modern locksmiths are most likely involved in the management, the implementation and the design of key control systems and keying; and they are also involved in the act of installing any high-quality sets of lock. A lot of people who works as locksmiths can be found working in every parts of the world, and some of them works as a freelancer or solely, while other are working under a locksmithing company. The people who wants to find the best and the most efficient locksmiths in their local area can locate them through the use of the internet, through the print ads given by these professionals, or through the recommendations of their families, colleagues and friends.