There are high magnetic fields around electric appliances such as induction cookers, microwave ovens, TVs, refrigerators, etc., and bank cards may be demagnetized if they are close to them. Putting them together with magnetic items such as mobile phones, computers, PDAs, magnets, Wenquxing, and business cards can also easily cause degaussing.

The recorded information of bank cards and passbooks is stored on the magnetic strip on the back. The strong magnetic field generated by the high-frequency electromagnetic waves generated when some equipment is working will magnetize the credit card, causing the recorded information to be disordered. causing the bank card to become invalid. That is, there are high magnetic fields around electric appliances such as induction cookers, microwave ovens, televisions, refrigerators, etc., and bank cards may be demagnetized if they are close to them. Putting them together with magnetic items such as mobile phones, computers, PDAs, magnets, Wenquxing, and business cards can also easily cause degaussing.

In addition, if the magnetic strips of two bank cards overlap, they are likely to be demagnetized at the same time. In addition, the magnetic buckles of women's handbags, card readers on buses, and some medical examination equipment such as MRI machines can also cause the magnetization of bank cards.

Measures to prevent bank card degaussing

Avoid magnetic field interference: Try to avoid placing bank cards near strong magnetic fields, such as electromagnetic equipment, magnetic objects, etc. In addition, direct contact with magnetic items such as mobile phones and key chains should be avoided to reduce the risk of degaussing.

Keep and use cards properly: Using and keeping bank cards correctly can reduce the possibility of degaussing. Avoid bending, scratching or moisture, and avoid frequently inserting and removing cards from magnetic card reading devices to reduce the risk of magnetic stripe wear.

Back up card information: When using a bank card, it is recommended to regularly back up card information, including card number, validity period, security code and other important information. This information can be recorded in a safe place in case it is needed.