Password administration for system owners by the National Cyber Security Center of the United Kingdom - one of the first countries to officially advocate for user-friendly password rules
Blase Ur, Felicia Alfieri, Maung Aung, Lujo Bauer, Nicolas Christin, Jessica Colnago, Lorrie Faith Cranor, Henry Dixon, Pardis Emami Naeini, Hana Habib, Noah Johnson, William Melicher. Design and Evaluation of a Data-Driven Password Meter In Proceedings of CHI 2017.