Sneaking · European Union

Negative option or unauthorised transaction

The label “Negative option or unauthorised transaction” describes this recurring design mechanism: silence, inactivity or an ineffective prior interaction is treated as authorisation for a paid or consequential transaction. It is a design and research taxonomy, not a standalone legal conclusion. Depending on the complete journey and likely effect, current EU consumer or sector rules may require separate assessment. No published Digital Fairness Act proposal currently creates a pattern-specific prohibition or duty under this label.

Editorial analysis
Family
Sneaking
Also known as
  • inertia selling
  • silence as consent
  • unauthorised renewal

Definition

What is this pattern?

Silence, inactivity or an ineffective prior interaction is treated as authorisation for a paid or consequential transaction. The label describes a recurring design mechanism; whether a particular implementation is harmful or unlawful depends on the complete journey, audience, evidence and rules within scope.

How it works

Silence, inactivity or an ineffective prior interaction is treated as authorisation for a paid or consequential transaction. Silence, a failed refusal or another non-affirmative event is interpreted as permission for a new charge, product or continuing commercial state.

Warning signs

  • A charge, supply or commitment occurs or is scheduled.
  • No clear current assent to that consequence is evidenced.
  • The design relies on non-response, hidden default or ambiguous prior wording.

Potential harms

  • Inactivity may produce a charge that the subscriber never actively authorised.
  • A person can be charged despite attempting to refuse the transaction through the supplied route.

Learn by comparison

What does this look like?

These fictional examples make the design mechanism easier to recognise. They do not depict a real company and do not establish that an individual interface is unlawful.

Illustrative example 1 · Annual service renewal

A fictional service states that failing to reply to an email will be treated as approval for a new paid add-on at renewal.

Potential consumer harm: Inactivity may produce a charge that the subscriber never actively authorised.

Illustrative example 2 · Subscription extension

A fictional trial email provides an opt-out link that returns an error, then charges the customer because the failed request is recorded as no response.

Potential consumer harm: A person can be charged despite attempting to refuse the transaction through the supplied route.

What is a fairer alternative?

Obtain clear, specific assent before any paid consequence and do not treat silence or inactivity as a new authorisation.

Context matters

Context and boundary cases

  • A charge, supply or commitment occurs or is scheduled.
  • No clear current assent to that consequence is evidenced.
  • The design relies on non-response, hidden default or ambiguous prior wording.
  • Exclude or qualify the label where clearly disclosed subscription renewal supported by valid assent and applicable notices.
  • Exclude or qualify the label where transaction explicitly confirmed at the material decision point.
  • Exclude or qualify the label where purely free continuation with no material consequence.

When a similar design can serve a legitimate purpose

  • A similar design should not be classified this way where clearly disclosed subscription renewal supported by valid assent and applicable notices.
  • A similar design should not be classified this way where transaction explicitly confirmed at the material decision point.
  • A similar design should not be classified this way where purely free continuation with no material consequence.

Operational review

What teams should review

Teams
  • Product
  • UX
  • Legal
  • Engineering
  • Content design
  1. Which affirmative action authorises “No action means yes”, and where is the resulting price, product or recurring state shown before commitment?
  2. Capture every peer option, its default state and visual prominence; do those states support “A charge, supply or commitment occurs or is scheduled”?
  3. Which specific affirmative event creates the final commercial state, and could “Clearly disclosed subscription renewal supported by valid assent and applicable notices” explain the observed outcome instead?
  4. Which affirmative action authorises “No response recorded”, and where is the resulting price, product or recurring state shown before commitment?
  5. Count steps, waits, offers and channel changes through final confirmation; where does the route meet “No clear current assent to that consequence is evidenced”?
  6. Which specific affirmative event creates the final commercial state, and could “transaction explicitly confirmed at the material decision point” explain the observed outcome instead?
  7. Which complete journey evidence supports or contradicts the negative option or unauthorised transaction classification?

Evidence to retain

  • Versioned captures of the Subscription and Cancellation states before, during and after the relevant decision
  • Configuration, content and event records supporting the observed negative option or unauthorised transaction mechanism
  • Responsive, keyboard and assistive-technology review of every material option and consequence
  • Control defaults, validation rules and consent or selection state changes

Legal map and implementation tools

Evidence base

Sources

  1. An Ontology of Dark Patterns KnowledgeGray et al.; ACM CHI 2024 · Secondary · checked 2026-09-14 · DOI 10.1145/3613904.3642436; arXiv:2309.09640
  2. Unfair Commercial Practices DirectiveEuropean Parliament and Council of the European Union · Primary · checked 2026-08-09 · Directive 2005/29/EC; CELEX 02005L0029-20220528
  3. Digital Fairness Act: call for evidence for an impact assessmentEuropean Commission · Primary · checked 2026-08-09 · Initiative 14622; Ares(2025)6275573
  4. Commission work programme 2026: Europe's Independence MomentEuropean Commission · Primary · checked 2026-09-14 · COM(2025) 870 final; CELEX 52025DC0870; Annex I item 30