People who sell citizen information, how do they know citizen information?

Nowadays, people know that information leakage is very serious, but they didn't expect their information to be leaked one day. At present, citizen information has been sold by many lawless elements as commodities in the gray market, and this behavior will be severely cracked down by the public security organs. Selling citizen information is undoubtedly illegal, but many people will still take risks. How did these leaked private information get out? Faced with more and more information leakage, what should we ordinary people do? Generally speaking, there are several ways to disclose citizen information. 1. Various phishing websites and phishing apps use fake login platforms to steal information. Some websites will ask you to enter your name, mobile phone number or ID number when registering, and these websites are all built by criminals? Shell website? . After the information is entered, the website will always be stuck on that page because their purpose has been achieved. 2. Stealing information through SMS fraud. This kind of liar will send you a message first, saying that your relative has had a car accident or committed something, asking you to send your ID number and name, and even asking you to transfer money. Cheating money and information is extremely bad. 3. Internal leakage. There have been such news before, some hotel staff used their positions to illegally obtain citizens' private information and resell it to some lawless elements for profit. This is the worst crime and will be dealt with severely once it is discovered. In the face of all kinds of tricks that can't be prevented, what we ordinary people should do is to learn to identify all kinds of fraudulent websites and false information, and carefully screen when providing personal information to minimize the risk of revealing privacy. Moreover, when we find that our citizen information has been resold, we should call the police in time to avoid further harm.