Lorrie Cranor, new chief technologist at the US Federal Trade Commission, has managed to persuade them to drop their policy of requiring regular password changes <http://arstechnica.com/security/2016/08/frequent-password-changes-are-the-enemy-of-security-ftc-technologist-says/>: Frequent password changes do little to improve security and very possibly make security worse by encouraging the use of passwords that are more susceptible to cracking.