If you still have a magnetic stripe card in your hand, you may receive a text message from the bank one day, reminding you that it is time to replace the bank's magnetic stripe card with a more secure financial IC card.
Some friends will ask whether chip cards (also called IC cards) will be demagnetized if they are placed together with magnetic items such as mobile phones, computers, tablets, or under other high magnetic field conditions.
The answer is "no".
degaussing usually occurs on magnetic stripe cards. The black track attached to the back of the magnetic stripe card is not only prone to physical wear and tear, but may also be directly interfered by other magnetic fields, causing the card to malfunction.
Chip cards do not have magnetic stripes. For example, a chip bank card stores information on a small integrated chip, which is then encapsulated in a copper sheet and embedded in a plastic card, and is visible in appearance (i.e., the yellow metal sheet on the card surface). It is a "contact chip card". ". This kind of card relies on an integrated chip to store information. It is not susceptible to magnetic field interference and physical damage. It has a larger capacity and a longer service life. However, it is more afraid of static electricity damage, so try not to touch the metal sheet directly with your hands.
There is also a kind of chip card called "contactless chip card", such as ID card, bus card, meal card, access control card, etc. This type of card uses radio frequency identification technology, and the information is stored on the semiconductor chip, and the internal Embedded inside the card media, they are not visible from the outside, so magnetic fields, electromagnetic waves, physical damage and static electricity will not have much impact on them.
