9F75

Unprotected Data Envelope 1 is the first member of the same free-read, non-integrity-protected Kernel 2 envelope family already covered in this dictionary via Envelope 2 (9F76) and Envelope 5 (9F79) - the same design tradeoff applies here: data that doesn't need cryptographic guarantees to be useful, kept in its own lightweight field rather than overloading the security-critical parts of the card's data model. It's related to both 9F76 and to Protected Data Envelope 2 (9F71, covered alongside it here), which sits in the equivalent numbered position in the write-protected half of the same envelope design - the pairing across the protected and unprotected families by number (1 to 2, and so on through the sequence) reflects how Kernel 2's data-storage feature was structured, not a claim about what specific content either envelope carries. As with its unprotected siblings, an application reading 9F75 is trusting its content without a cryptographic basis for that trust, and its exact payload is scheme- or issuer-specific rather than defined by core EMV. See EMV Contactless Book C-2.