<!--
{
  "availability" : [
    "iOS: 14.0.0 -",
    "iPadOS: 14.0.0 -",
    "macCatalyst: -"
  ],
  "documentType" : "symbol",
  "framework" : "CoreNFC",
  "identifier" : "/documentation/CoreNFC/NFCISO15693SystemInfo/uniqueIdentifier",
  "metadataVersion" : "0.1.0",
  "role" : "Instance Property",
  "symbol" : {
    "kind" : "Instance Property",
    "modules" : [
      "Core NFC"
    ],
    "preciseIdentifier" : "s:7CoreNFC21NFCISO15693SystemInfoV16uniqueIdentifier10Foundation4DataVvp"
  },
  "title" : "uniqueIdentifier"
}
-->

# uniqueIdentifier

```
var uniqueIdentifier: Data
```

---

Copyright &copy; 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)