Industry · Status at source date: Newsletter archive
France's CNIL publishes guidance on cross-device cookie consent requirements
France's data protection authority, the CNIL, has issued recommendations on cross-device consent for cookies and trackers. When users consent to cookies on one device, that consent can apply across all devices connected to their account, but there are strict conditions.
What changed
Users must be informed before login that their choices will apply to all connected devices. A temporary banner must appear when logging into a new device, showing which choices have been recorded. If pre-login choices differ from account settings, users must be clearly informed how this is handled.
Critically, if users can consent once for all devices, they must be able to refuse or withdraw consent with the same simplicity across all devices.
Why it matters for advertisers
For you, this means consent management platforms serving French users may need updates to handle cross-device consent properly, with equal friction for acceptance and rejection.
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Original newsletter text and archive evidence
France's CNIL publishes guidance on cross-device cookie consent requirements
France's data protection authority, the CNIL, has issued recommendations on cross-device consent for cookies and trackers. When users consent to cookies on one device, that consent can apply across all devices connected to their account, but there are strict conditions. Users must be informed before login that their choices will apply to all connected devices. A temporary banner must appear when logging into a new device, showing which choices have been recorded. If pre-login choices differ from account settings, users must be clearly informed how this is handled.
Critically, if users can consent once for all devices, they must be able to refuse or withdraw consent with the same simplicity across all devices. For you, this means consent management platforms serving French users may need updates to handle cross-device consent properly, with equal friction for acceptance and rejection.
Source captured . No explicit first-contributor label was provided for this update.
