Multiple Password Interference in Text Passwords and Click-Based Graphical Passwords

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Provided by: Association for Computing Machinery
Topic: Security
Format: PDF
The underlying issues relating to the usability and security of multiple passwords are largely unexplored. However, the authors know that people generally have difficulty remembering multiple passwords. This reduces security since users reuse the same password for different systems or reveal other passwords as they try to log in. They report on a laboratory study comparing recall of multiple text passwords with recall of multiple click-based graphical passwords. In a one-hour session (short-term), they found that participants in the graphical password condition coped significantly better than those in the text password condition. In particular, they made fewer errors when recalling their passwords, did not resort to creating passwords directly related to account names, and did not use similar passwords across multiple accounts.
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