Signal can change these terms at any time, and simply continuing to use the app counts as your agreement to the new terms.
This analysis describes what Signal'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
Signal is not required to notify you directly when terms change; updating the 'Last Modified' date is the only specified notice mechanism, meaning material changes could take effect without you being explicitly informed.
Interpretive note: GDPR and EU consumer protection law may require more affirmative notice mechanisms than a 'Last Modified' date update; enforceability of deemed-acceptance by continued use varies by jurisdiction.
Signal can modify its terms without direct notice to users; continued use of the app following any update constitutes acceptance of the new terms, which means users who do not regularly check the terms page may unknowingly agree to changed conditions.
How other platforms handle this
Target reserves the right to change these Terms at any time. We will post notification of changes to these Terms on this page. Your continued use of the Target Services after any changes to these Terms constitutes your acceptance of the new Terms.
We reserve the right, at our sole discretion, to amend these Terms of Service at any time and will update these Terms of Service in the event of any such amendments. We will notify our Users of material changes to this Agreement, such as price changes, at least 30 days prior to the change taking eff...
Uber reserves the right to modify the terms and conditions of these Terms or its policies relating to the Services at any time, effective upon posting of an updated version of these Terms on the Services. You should regularly review these Terms, as your continued use of the Services after any such c...
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"Signal may update the Terms from time to time. When we update our Terms, we will update the 'Last Modified' date associated with the updated Terms. Your continued use of our Services confirms your acceptance of our updated Terms and supersedes any prior Terms.— Excerpt from Signal's Signal Privacy Policy
REGULATORY LANDSCAPE: Unilateral modification clauses are common in consumer software agreements but attract scrutiny under GDPR (which requires clear notice of material changes to privacy practices), CCPA, and consumer protection laws in multiple jurisdictions. The EU's Unfair Contract Terms Directive may limit the enforceability of modification clauses that do not provide adequate consumer notice. The FTC has historically challenged modification practices that allow material changes without meaningful consumer notice. GOVERNANCE EXPOSURE: Medium. The absence of a direct notification obligation (email, in-app notification) for material changes is a notable gap relative to best practice. GDPR Articles 13 and 14 require proactive notice of material changes to privacy practices; a 'Last Modified' date update alone may be insufficient to satisfy this standard for EU users. JURISDICTION FLAGS: EU/EEA and UK users have heightened protections requiring affirmative notice of material changes to data processing practices. California's consumer protection framework also creates exposure where material changes are made without adequate notice. Jurisdictions with mandatory cooling-off periods for consumer contract changes create additional compliance obligations. CONTRACT AND VENDOR IMPLICATIONS: Enterprise deployments should establish internal monitoring processes for Signal terms changes, as the agreement places the burden of tracking modifications on the user. Vendor management programs should include periodic review of Signal's published terms. COMPLIANCE CONSIDERATIONS: Legal teams should establish a review cadence for Signal's terms page, particularly given that the policy was last updated in May 2018 and any future material change could take effect with only a date update as notice. GDPR compliance teams should assess whether this mechanism satisfies the proactive notice requirements of Articles 13 and 14 for EU-facing deployments.
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Signal is not required to notify you directly when terms change; updating the 'Last Modified' date is the only specified notice mechanism, meaning material changes could take effect without you being explicitly informed.
Signal can modify its terms without direct notice to users; continued use of the app following any update constitutes acceptance of the new terms, which means users who do not regularly check the terms page may unknowingly agree to changed conditions.
ConductAtlas has identified this type of provision across 63 platforms. See the full comparison.
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