In Reply to: Credit card details/Passport posted by cacko on Monday, 15. February 2010 at 15:20 Bali Time:
The details on back of your credit card are YOUR security check, I have only ever given the front and the last three numbers on the back of my card and certainly would not send a fax or email of the ALL of the details on both sides of my card and have never sent photo copies of my passport.
There are some hotels or agents whose bank requires these details, but after 17 trips I have never given them all the front and back details.
Times might have changed, and as the other posters have said it is normal, but I wouldn't do it.
Hoolz