We recently stayed at Twin Falls 93 RV Park. Upon checking in, the manager swiped my credit card and received an authorization number okaying the charge. She then proceeded to write down my card number , expiration date and "secret number" (from the back of the card) on my registration form. This form includes my name, address and phone number. At the time she did it, I thought it was odd, but I was awake all night worrying about how the info could be used. The office was not particularly secure and people likely are in and out, plus the managers are probably not around 24/7. In the morning I emailed them asking them to destroy my credit card info and they said they would, however I am sure they will continue to collect the info from others. Please guard your credit card info and refuse attempts to keep permanent record of your info.