Great video by The Nerdwriter on YouTube, providing an overview and examples of Dark Patterns in UX design. As he explains, the term ‘Dark Patterns’ was coined by Harry Brignul. Harry defines them as such:
Dark Patterns are tricks used in websites and apps that make you buy or sign up for things that you didn’t mean to.
Check out Harry’s site for more info. You more than likely will be forced into a Dark Pattern at one point or another. As long as you recognize them, you’ll be better armed to prevail against them.