What are Dark patterns?
Dark patterns are user interface designs that deliberately manipulate people into actions they would not otherwise take, such as unwanted purchases, data sharing, or subscription renewals. The term was coined by UX designer Harry Brignull in 2010.
How it works
Common dark patterns include confirmshaming (making the opt-out feel like a moral failure), roach motels (easy to enter, hard to leave), hidden costs (fees revealed only at checkout), trick questions (confusing double negatives on consent forms), and forced continuity (free trial that auto-converts to paid without clear warning). They exploit cognitive biases like inertia, social pressure, and loss aversion for the company’s benefit at the user’s expense.
Applied example
An airline pre-selects travel insurance during booking so that passengers who do not carefully review every step unknowingly pay an extra $30. The checkbox is buried in a section with visual clutter designed to discourage close reading.
Why it matters
Recognizing dark patterns is critical because they erode user trust, expose companies to regulatory action (the EU Digital Services Act targets them explicitly), and represent the unethical inverse of legitimate behavioral design.
