1. At present, bank cards are generally magnetic stripe cards or IC cards, and bus cards and ID cards also belong to IC cards. What we usually call degaussing does not mean that the magnetic card has no magnetism, but also that the original information is destroyed by the strong external magnetic field.

2. However, the magnetic field generated by the mobile phone is not enough to degauss the magnetic card. Some people have done experiments, whether in standby or talking state, even if the magnetic components in the mobile phone, such as speakers and vibration motors, are repeatedly rubbed on the magnetic stripe, the magnetic card will not be demagnetized.

3. IC card information is stored in EEPROM, which is a memory composed of integrated circuits, and reading and writing data also uses electricity directly, not the magnetic head; They are afraid of static electricity, not magnetic substances.

4. Theoretically speaking, cell phone signal is an electromagnetic wave, and it is also used to read and write IC cards. However, electromagnetic waves also have differences in power and frequency.

5. GSM has the strongest energy radiation among all kinds of mobile phones. According to China's standards, the maximum peak power of GSM mobile phone cannot exceed 2W. In normal use, the average power is only about .2W or even lower, which is not enough to damage the IC card chip.

6. The second-generation ID card works at 13.56MHz, while the GSM mobile phone works at 9MHz, which is obviously far from each other, and the mobile phone signal is almost impossible to receive. There will be no possibility that the mobile phone signal is too strong, which will cause excessive current in the second-generation ID card and cause the card to burn.