May 17, 2020 Volume 18, issue 2 PDF Dark Patterns: Past, Present, and Future The evolution of tricky user interfaces Arvind Narayanan, Arunesh Mathur, Marshini Chetty, and Mihir Kshirsagar Dark patterns are user interfaces that benefit an online service by leading users into making decisions they might not otherwise make. Some dark patterns deceive users while others covertly manipulate or coerce