You can see a lot of cases in this area if you look at Baidu's "burglary using locksmithing techniques".
As for how to prevent, the following repost for reference:
Piece of police talk about the prevention of technical locking burglary
December 22, 2003 08:18 Dalian Daily
Closer to the neighborhood to strengthen self-prevention of the reporter Li Wei criminals have mastered the locking technology, residents of the personal and property safety of the hazards caused by the obvious. Many veteran police officers who have been engaged in the community for many years at the most basic level of policing believe that although technical burglary cases are more specific than general theft cases, but in many ways residents can still be prevented.
Guilin police station community police Yan Tianyi is to do 16 years of community police veteran police, he is responsible for the community has Mingzeyuan, Yucai community, Linjing community, lakeside community, etc., *** more than 7,000 households. He believes that medium and high-grade neighborhoods should strengthen technical precautions
, the conditions must be installed closed-circuit monitoring system. In addition, each unit to set up another unit security door, so that the double insurance can effectively prevent theft cases, enhance the security of residents. Yan Tianyi said, his area where there is double insurance door households have never had a burglary case.
In addition, the old police also introduced to the reporter in the community work in his accumulated experience: prevention of technical burglary is a very important aspect of close neighborly relations, encountered suspicious people should be questioned in a timely manner and reported to the police. He told reporters about a thing that happened in his district: a resident home from work to see a suspicious man from the upstairs panicked down, carrying a large package. Although the tenant felt that this person is suspicious, but thought that they have nothing to do with what they did not say anything. Wan did not expect, when he went home to see, it is their own home door was opened by criminals with technical means, and then stole many things at home. There are also high-grade community, neighbors do not know each other, clearly saw the thieves to move things out, but also thought it was a neighbor in the move. Yan Tianyi said, in the city's many old communities, building neighbors, some of whom have lived together for decades, who have a breeze know that the elderly do not work often volunteer to watch the door for the neighbors to look at the locks, many burglary criminals are difficult to succeed.
Democracy Square police station, the old police officer Yu Baochen said, residents if the key will be left at home, please open the underground locksmith store, it is best to change the locks, to do a good job of preventing technical locks burglary of their own precautions. At the same time, the new building to move in or ask someone to renovate the household should also change the locks in a timely manner. At the same time, pay attention to their own burglar door burglar performance has been backward, conditional households should be replaced with higher technology, burglar performance advanced burglar door, do not give criminals to take advantage of the opportunity.
The reporter also asked some of the old police to tell the characteristics of the suspects of technical unlocking burglary. It is understood that these people are often their suits disguised, in the pockets of a homemade simple lock picking tool can be, to achieve the purpose of not being noticed and suspected. Also, technical locksmith burglary is often a person alone.