Web, security and development
PCI
Abbreviation for Payment Card Industry
In short and in plain language
PCI stands for the industry that works with payment cards.
Credit cards are one example.
A body of this industry makes rules to keep card data safe.
Shops that accept cards usually have to follow these rules.
Definition
PCI stands for Payment Card Industry, the sector of card payments. The abbreviation is part of the name of the PCI Security Standards Council, the body that maintains the security standard PCI DSS. For shops that accept card payments, this standard is usually the relevant part.