RFID hacked again and vendor says it"s as safe as anything in our wallet!

RFID is a highly controversial technology because (some say), it is
easily "hacked," which will leave it wide open for data theft. This
could mean - a bad guy gaining access to a secure building - or even
your personal information being compromised (cloned), when used in
"identification documents," such as passports.

And to make it even easier for the crooks, it's "wireless."

http://fraudwar.blogspot.com/2006/07/rfid-hacked-again-and-v endor-says-its.html