Amex
- All Third Party Processors.
Discover
- Discover does not currently categorise service providers in to levels.
JCB
- All Third Party Processors.
Mastercard
- All Third Party Processors.
- All Data Storage Entities that store, transmit or process more than 1,000,000 transactions combined between Maestro & Mastercard annually.
- All compromised DSE's and TPP's.
VISA Europe
- Any Service Provider that stores, transmits or processes more than 300,000 transactions per year.
Amex
Discover
JCB
Mastercard
- All Data Storage Entities that store, transmit or process less than 1,000,000 transactions combined between Maestro & Mastercard annually.
VISA Europe
- Any Service Provider that stores, transmits or processes less than 300,000 transactions per year.