According to a survey of British online-security consultant NTA Monitor, the typical intensive computer user has 21 accounts that require a password. The concept is also known as password chaos or more broadly as identity chaos. 

    根据英国网络安全咨询公司NTA Monitor的一项调查，经常使用互联网的用户需要记住21个账户和密码。记住大量的密码已经成为人们日常生活的一部分，比如上班时的电脑登录密码，解车锁密码，ATM机操作密码等等。