RFID (Radio Frequency Identification) is a technology that uses radio waves to wirelessly transfer information. Contactless cards like credit/debit cards, passports, and public transport cards use RFID to send data when scanned.

RFID technology can be dangerous as hackers use special RFID scanners to read the data on your card. This puts your personal and financial information like credit card numbers and expiration dates at risk of theft.

Yes, RFID cards can be scanned without your permission by unauthorised readers, putting your sensitive information at risk of theft.

The range depends on the strength of the RFID scanner. Typically your cards can be scanned from 5-10 meters away.