Card Verification

For your protection, AEC Software requires the card verification number for all credit card transactions. The card verification number is an additional security measure to help verify that you are in possession of your credit card. Depending on your card type, this number is known as CVV2, CVC2, or CID.

Visa

CVV2 — 3 digits on the back of the card

MasterCard

CVC2 — 3 digits on the back of the card

American Express

CID — 4 digits on the front of the card

Discover

CVV — 3 digits on the back of the card