
This random identifier is not linked to your Apple ID, email address, or other data Apple may have from your use of other Apple services. Siri Data is associated with a random, device-generated identifier. Siri Data, which also includes computer-generated transcripts of your Siri requests, is used to help Siri and Dictation on your iOS device and any Apple Watch, HomePod, or supported HomeKit accessory set up with your iOS device understand you better and recognize what you say. Your requests are associated with a random identifier, not your Apple ID.

Names of your and your Family Sharing members’ devices.Contact names, nicknames, and relationships (for example, “my dad”), if you set them up in your contacts.When you use Siri and Dictation, your device will send other Siri Data, such as: Otherwise, the things you dictate are sent to and processed on the server. When you use Dictation, your device will indicate in Keyboard Settings if your voice inputs and transcripts for general text Dictation (for example, composing messages and notes, but not dictating in a search box) are processed on your device and not sent to Siri servers. In all cases, transcripts of your interactions will be sent to Apple to process your requests. Otherwise, your voice inputs are sent to and processed on Siri servers. When you use Siri, your device will indicate in Siri Settings if the things you say are processed on your device and not sent to Siri servers. For more information, visit When You Make Requests, Siri Sends Certain Data About You to Apple to Process and Help Respond to Your Requests

If you opt in to Improve Siri and Dictation, additional data is collected, stored, and reviewed. Ask Siri, Dictation & Privacy outlines the default behavior for Siri and Dictation.
