Just like other professions where crooked providers exist, so does the locksmith profession have its share. These are normally locksmith service providers who rather than provide value to their customers, simply go for profit. So, they do not give value services so that the customer may come back again for their services.
For instance, in case they have been asked to repair a lock, they can simply replace it with one that is worse. It may work for sometime, and then break again. In addition, there are some locksmiths who when asked to assess the security concerns of a business, or home, may give an inflated quote to make more profit.
There are also other locksmiths who apart from locksmith work, also engaged in criminal activities. So, they may install a keypad entry system to a home, and then share the pass code with criminals so that they can rob a home easily. Therefore, there are many ways in which a few dishonest locksmiths are simply destroying the reputation of honest locksmiths.
However, this is the reason that a person is always advised to do some research on a company before they hire it. The research may show a person whether a firm that they intend to hire is the real deal, or simply an unreliable firm.