Government or industry bodies agree a set of standards for securing specific data and transaction types so that people can expect a minimum level of security.
PCI is a proprietary credit card security standard operated by the major global credit card companies.
GOV.UK Verify is a delegated method of identity verification, available from multiple providers, for use in UK government digital services.
3-D Secure is a protocol for additional identity verification when making online purchases. It is branded by Visa and MasterCard as “Verified by Visa” and “MasterCard SecureCode” respectively.
ISO/IEC 27002 is an international standard on information security, providing best practice for both digital and physical security.