Eli5: How is a debit chip or tap to pay anymore secure than a mag strip with the same data on it?

Question

Eli5: How is a debit chip or tap to pay anymore secure than a mag strip with the same data on it?

In: 118

Answer 1

The chip is like a little computer that gets powerd inside the readers or even wireless with NFC. The magnetic strip is just like a number you have written down, only it’s readable by machines.

That leads to several problems with the strip. You can easily read and copy it for example. The chip works like a computer, you can program it to only send data when it’s properly authorized. Makes it a lot harder to extract and reproduce the data.