Google Data Manager to Remove Hashing Requirement
The platform will transition to a new encrypted processing standard starting on November 16, 2026.
Updated on Oct. 24, 2026 in Cybersecurity
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Beginning November 16, 2026, Google Data Manager will no longer require customers to provide SHA-256-hashed data for offline uploads. This update applies to data used for Customer Match and enhanced conversions within Google Ads.
Why it matters
By simplifying the submission process, Google intends to reduce common formatting errors that currently hinder data matching performance. The shift allows advertisers to bypass manual normalization and hashing steps that are currently required for user information.
The new process utilizes a hardware-isolated trusted execution environment to decrypt and normalize customer data. This replaces current instructions that mandate converting email addresses and phone numbers to lowercase before manual hashing.
The players
An American multinational technology company that specializes in Internet-related services, including online advertising technologies and search engine infrastructure.
Google Ads
An online advertising platform that allows businesses to display brief advertisements, service offerings, and product listings to web users.
The details
The platform will now support encrypted customer data by default, offloading the normalization process to its secure environment. This change aims to improve overall matching accuracy for offline data integration tasks.
Timeline
November 16, 2026: Google Data Manager stops requiring SHA-256-hashed customer data.
The Tech Race
This transition follows a broader industry trend of migrating sensitive data processing into Google's Trusted Execution Environment. The move replaces legacy client-side hashing methods with more robust, hardware-level security measures to protect user privacy.
Advertisers and developers will no longer need to manually normalize and hash phone numbers or email addresses before uploading data. This shift streamlines the workflow for Customer Match campaigns by reducing the potential for data entry errors.
The takeaway
The move toward automated decryption and matching represents a significant shift toward reducing the technical burden on data managers. Users should review their existing data formatting protocols to prepare for this upcoming transition in November 2026.
Further reading
For more on evolving digital safety standards, see the latest updates on Cybersecurity.
Source note: This article includes information reported by Search Engine Watch.
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