[Beware of Foil Lock Picking] It's nearing the end of the year, be careful of foil lock picking!! A small strip of foil can instantly become a "universal key" in the hands of an expert, opening anti-theft door locks within two or three seconds. Grade A is the most primitive and least secure type of lock core, which can be compromised in 2-5 minutes; it has a single row of bullet slots. Especially in new housing developments, developers, to save costs, typically install Grade A locks on doors, with very few installing Grade B locks. The standards for Grades A, B, and C were released in 1994 and have been used ever since:
Grade A Lock: At least 15 minutes required for forced entry, at least 1 minute for technical lock picking.
Grade B Lock: At least 30 minutes required for forced entry, at least 5 minutes for technical lock picking.
Grade C Lock: Grade C lock cores are used in places like bank vaults and are generally not accessible to the average person.
There is also an Ultra Grade B lock, which falls under the Grade B category but has undergone technical improvements. Technical lock picking would take between 200 to 300 minutes.
In reality, as time passes and technology evolves, this standard no longer meets practical needs. The highest grade that ordinary people can buy on the market is Grade B. Quickly replace your home’s anti-theft door lock with a Grade B lock! Grade B locks are not expensive, or you can directly purchase a Grade B lock core online and have it installed by a loved one for about 100 yuan.
Previously, in Hefei, Anhui, foil lock picking could be done in just a few seconds, even by a three-year-old child! If your lock isn't secure, replace it quickly! It's estimated that most of your homes have Grade A locks, which is essentially like leaving your door open for thieves.
Check out this website for evaluations and recommendations of Grade B and Ultra Grade B locks on the market: www.bjisuo.com