Hi, We're using SecKeyCreateRandomKey to generate a random key with access control kSecAttrAccessControl key set to `kSecAccessControlTouchIDAny' using below code SecAccessControlCreateWithFlags( kCFAllocatorDefault, kSecAttrAccessibleWhenPasscodeSetThisDeviceOnly, kSecAccessControlTouchIDAny | kSecAccessControlPrivateKeyUsage, &error) Now, while accessing the key with below code, we're not seeing any biometric prompt on simulator where as the biometric prompt is shown in all physical devices and the key is returned only on successful authentication with FaceID (or) Touch ID. Can someone please help to understand why the behaviour is different in simulators NSDictionary *privateKeySearchQueryParam = @{ (id)kSecClass: (id)kSecClassKey, (id)kSecAttrKeyType: (id)kSecAttrKeyTypeEC, (id)kSecAttrLabel: keyName, (id)kSecReturnRef: @YES };