race_k2 asks: "As a regular Slashdot reader I've followed the development and implementation of RFID devices in many ubiquitous areas such as clothing, passports and even people. Given that our environment is becoming increasingly tagged, often without our knowledge or consent, and can be monitored or hacked by anyone with the proper hardware, skills and motivation, I viewed the recent arrival of two new ATM cards containing RFID chips with skepticism. While this feature may bring the increased convenience of speedy checkouts, it is not something I am completely comfortable using and decided that the safety of my personal data was more important than the ability to buy things quickly. The vulnerable nature of RFID security coupled with recent, though unrelated, reports of a Possible Security Flaw In ATMs make me seriously question whether the marriage of wireless data transfer with personal finance is a wise application of technology." So race's question basically boils down to: How safe and secure are the RFID chips that are being embedded in debit and credit cards? To add another issue on to the fire: Would you trust RFID technology on your cards?