 A new report sheds new light on a dark pattern. That's when a website uses design to manipulate a person's behavior. The report showing it may be more common than you think. 76% of websites and mobile apps surveyed by the International Consumer Protection and Enforcement Network included at least one dark pattern. 68% included more than one. One of the most common dark patterns the organization found was platforms making it hard to opt out of subscriptions that automatically renew. ABC's Mike Dabusky.