How is our "personal information" leaked?

There are seven ways to disclose your personal information:

***WiFi

If the WiFi automatic connection function is selected in the network settings of the smart phone, it will automatically connect to WiFi in public places. The security protection function of WiFi is relatively weak, and hackers can steal any user name and password on WiFi through some simple devices.

● Note: Try not to use free WiFi without password in public places. When using WiFi to log in to online banking or Alipay, you can access it through a special APP client. It is best to set the WiFi connection to manual.

Old mobile phone

Many people will resell their old mobile phones when they are replaced with new ones. Although you restore the old mobile phone to the "factory default settings" or even format, through technical means, professionals can still restore all the SMS, address book, software and even browsing records in the old mobile phone, and even the payment account and credit card information may be restored.

● Note: Try to avoid reselling mobile phones with personal account information. If you really want to sell it, you must do a thorough cleaning before reselling it.

Social media

When interacting with acquaintances through Weibo, QQ space, post bar, etc. Sometimes you will unconsciously say or mark the real information such as the name, position and work unit of the other party.

Some parents take photos of their children in the circle of friends, including their names, schools and communities. Sun's train ticket, boarding pass, but forgot his vague name, ID number, QR code, etc.

● Precautions: Try to avoid revealing or labeling real identity information in social networks such as Weibo and QQ Space. Be careful when taking pictures in your circle of friends.

Network investigation

When surfing the internet, you will often encounter various activities such as filling out questionnaires, playing test games, shopping lottery, or applying for free mailing materials and handling membership cards. Generally, you need to fill in personal information such as detailed contact information and home address.

● Precautionary measures: Before participating in such activities, you should choose a website with reliable reputation to carefully verify the real situation of the other party. Don't fill in it rashly, which will lead to the disclosure of personal information.

Biographical notes

Nowadays, many people apply for jobs through online resumes, and personal information in resumes is readily available. Some companies will also ask you to fill out a so-called "personal information form" with your family relationship description, parents' names, personal phone numbers, addresses, graduation schools and even ID numbers.

● Note: Under normal circumstances, only the necessary information is provided on the resume. Don't fill in my specific information in too much detail.

All kinds of documents

Express bills, tickets, boarding passes, shopping receipts, business bills for mobile phone cards, water and electricity bills ... all these documents may lead to the disclosure of personal information.

● Precautions: The delivery address of express delivery need not be left too detailed. Useless files can be directly shredded, or personal information such as name, phone number and address can be blacked out and discarded. Take good care of useful documents and don't throw them about!

Copy of id card

Banks, telecom operators' business halls, registration for various exams, etc. Many places need to keep copies of their ID cards, and even some typing shops and copy shops use convenience to temporarily store customer information in the copy shop for archiving.

● Precautionary measures: Keep a good copy of your ID card, dispose of the unused or invalid ones, and don't throw them away at will.