Why do you know your ID number when you call overseas?

The biggest possibility is that personal information has been leaked.

Personal information includes basic personal information such as name, gender, age, ID number, telephone number, email address and home address, and sometimes even relatively private personal basic information such as marriage, belief, occupation, work unit, income, medical record and birth.

Whether it is legal or not, the following factors will be considered when handling:

1. Consequences: such as direct loss or estimated loss, or opportunity cost loss, etc.

2. The nature of the leaked information: for example, whether this information can be obtained through other channels.

Extended data:

Harm of information leakage

1, spam messages, harassing phone calls, and spam messages. This has become a very common thing. After personal information is leaked, e-mail can receive more than a dozen junk mails every day, and they may often be called by strangers, some selling insurance, some selling decoration and some selling baby products.

2. Pretending to run a card to overdraw debts. Someone buys your personal information, copies your ID card, defrauds the bank's credit online, handles various credit cards of the bank, maliciously overdraws consumption, and then the bank may directly send overdue reminders to the owner of the ID card.

Baidu Encyclopedia-Personal Information Disclosure