Privacy Policy - EU

TikTok · agreement dated 30 November 2025 · Official agreement

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2 of 125 cards in Linking & Identification

Linking & Identification · Company practice

Activity is identified across your devices using device and user IDs

Where you log in from multiple devices, TikTok uses information such as your device ID and user ID to identify your activity across those devices, for a seamless log-in experience and for security purposes.

Details
What it does
identifies your activity across devices
Why
seamless log-in experience and security
Condition
where you log in from multiple devices

Supporting quotations

Where you log-in from multiple devices, we use information such as your device ID and user ID to identify your activity across devices to give you a seamless log-in experience and for security purposes.

Qualifications & exceptions

  • Applies where you log in from multiple devices.
  • Stated purposes are a seamless log-in experience and security.
Also annotated in the same passage (1)

Linking & Identification · Company practice

Advertising and measurement partners send TikTok data about what you do off the Platform

Advertisers, measurement and other partners share information with TikTok about you and your actions outside the Platform, such as activity on other websites and apps or in stores, including products or services you purchased online or in person. They also share mobile identifiers for advertising, hashed email addresses and phone numbers, and cookie identifiers, which TikTok uses to match you and your off-Platform actions with your TikTok account.

Details
Who
advertisers, measurement and other partners
What it covers
information about your actions outside the Platform, mobile identifiers, hashed emails and phone numbers, cookie identifiers
Why
match you and your actions with your TikTok account

Supporting quotations

Advertisers, measurement and other partners share information with us about you and the actions you have taken outside of the Platform, such as your activities on other websites and apps or in stores, including the products or services you purchased, online or in person.
These partners also share information with us, such as mobile identifiers for advertising, hashed email addresses and phone numbers, and cookie identifiers, which we use to help match you and your actions outside of the Platform with your TikTok account.

Qualifications & exceptions

  • Covers actions outside the Platform, including in-person purchases.
Also annotated in the same passage (1)