Provision record
Substack · Substack Privacy Policy · View original document ↗

Account identifiers shared for child safety detection

High severity Medium confidence Explicit document language Common · 287 of 352 platforms

Key Facts

Who does Substack share account identifiers with?
Substack shares account identifiers with trusted industry child safety consortia for the detection and prevention of online child sexual exploitation and abuse.
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This analysis describes what Substack's agreement states, permits, or reserves. It does not constitute a legal determination about enforceability. Regulatory applicability and practical outcomes may vary by jurisdiction, enforcement context, and individual circumstances. Read our methodology

ConductAtlas Analysis

Why it matters (compliance & governance perspective)

This disclosure establishes that account identifiers are shared outside Substack with third-party organizations, even absent a legal order, for a defined child safety purpose.

Interpretive note: The excerpt is a fragment lacking its governing verb and modal qualifier (e.g., 'may share' or 'will share'), so the precise conditionality of the sharing obligation cannot be confirmed from this excerpt alone. The companion clause 28098 supplies fuller language. Confidence is medium because the standalone fragment does not itself establish the permission structure.

Recent Activity

This document changed recently

Medium May 5, 2026

Substack now discloses that it shares account identifiers, such as email addresses and usernames, with trusted industry child safety organizations to detect and prevent online child sexual exploitation and abuse. The policy also establishes that Substack will respond to privacy rights requests within one month, or up to three months for complex requests, providing more certainty about response timelines. Additionally, the policy clarifies that direct message recipients may retain messages even if you request deletion or delete your account, which is now explicitly stated rather than implied.

View change record →
Medium Apr 19, 2026

The updated policy no longer commits to responding to privacy rights requests within one month or within three months for complex requests. This removes a procedural timeline that previously bound Substack's response obligations. Additionally, the explicit disclosure that Substack shares account identifiers with child safety consortia to detect online child sexual exploitation has been removed from the policy, though the practice itself is not stated to have ended. The direct message retention language is now framed more directly: recipients may retain messages even if you request deletion or close your account.

View change record →

Clause Stability Stable

0
Changes
4
Months Monitored
Jul 10, 2026
First Seen
Jul 10, 2026
Last Seen
This clause type exists across 4429 other provisions on other platforms.

Consumer impact (what this means for users)

Users' account identifiers may be shared with trusted industry child safety consortia without the user's individual consent for each such share.

How other platforms handle this

Tinder Medium

we may share data between our affiliates for the safety and security of our users and may take necessary actions if we believe you have violated these Terms, including banning you from our Services and/or our affiliates' services...

Lime Medium

if you are accessing and using Lime Services under a corporate account...you acknowledge and agree that Lime may share certain of your usage information with whomever provided you with access to the Lime Services

Google Gemini Medium

Chats are disconnected from your account before being sent to service providers.

See all platforms with this clause type →
▸ View Original Clause Language DOCUMENT RECORD
"
to share account identifiers with trusted industry child safety consortia for the detection and prevention of online child sexual exploitation and abuse (OCSEA)

Excerpt from Substack's Privacy Policy

Applicable regulations

CCPA/CPRA
California, USA
Connecticut Data Privacy Act Amendments
US-CT
CAN-SPAM
United States Federal
FTC Act Section 5
United States Federal
GDPR
European Union
Indiana Consumer Data Protection Act
US-IN
Kentucky Consumer Data Protection Act
US-KY
UK GDPR
United Kingdom
Universal Opt-Out Mechanism Expansion 2026
US
VPPA
United States Federal

Provision details

Document information
Document
Substack Privacy Policy
Entity
Substack
Document last updated
May 5, 2026
Tracking information
First tracked
May 21, 2026
Last verified
May 21, 2026
Record ID
CA-P-028064
Document ID
CA-D-00178
Evidence Provenance
Source URL
Wayback Machine
Content hash (SHA-256)
a4d2324534904f4fe245001d53f247ef46d8942c06d9e1fa0c0ef9aa893a52ee
Analysis generated
May 21, 2026 04:18 UTC
Methodology
Evidence
✓ Snapshot stored   ✓ Hash verified
Citation Record
Entity: Substack
Document: Substack Privacy Policy
Record ID: CA-P-028064
Captured: 2026-05-21 04:18:30 UTC
SHA-256: a4d2324534904f4f…
URL: https://conductatlas.com/platform/substack/substack-privacy-policy/provision/CA-P-028064/account-identifiers-shared-for-child-safety-detection/
Accessed: Aug. 19, 2026
Permanent archival reference. Stable identifier suitable for legal filings, compliance documentation, and research citation.
Classification
Severity
High
Categories

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Frequently Asked Questions

What does Substack's Account identifiers shared for child safety detection clause do?

This disclosure establishes that account identifiers are shared outside Substack with third-party organizations, even absent a legal order, for a defined child safety purpose.

How does this clause affect you?

Users' account identifiers may be shared with trusted industry child safety consortia without the user's individual consent for each such share.

How many platforms have this type of clause?

ConductAtlas has identified this type of provision across 287 platforms. See the full comparison.

Is ConductAtlas affiliated with Substack?

No. ConductAtlas is an independent monitoring service. We are not affiliated with, endorsed by, or sponsored by Substack.