ucl password not strong enough

We (Ingolf Becker, Simon Parkin and M. Angela Sasse) decided to collaborate with the Information Services Division to study the effect of this policy change, and the results were published at USENIX Security this week. This ought to be considered alongside an increase in costs to the user to memorise and use more complex passwords. At UCL, we are sent a reminder of a password’s impending expiration 5 times: 30, 20, 10, 4 and 1 day(s) in advance. In the figure above we plot the average password lifetime of unexpired passwords grouped by the number of password resets a user has performed. How can I choose an acceptable password for my personal email address ? You will be notified * I’d love to see more information on the UX – how the users are interactively guided into increasing the entropy of their passwords. 加入小组后即可参加投票.

You can no longer use your personal email address to access online services at UCL. When you are offered a place at UCL and you accept it: You can no longer use your personal email address to access online services at UCL. Your username is your personal email address. Q. I've changed my personal email address. If your date of birth needs to be corrected, please contact the When you apply for a programme at UCL: Use OUR to register your personal email address and set a password for it.

call the ‘Don’t care region of password strength’ wherein any increase in password strength provides no additional security. Please make sure that JavaScript is This isn’t going well. A move to zxcvbn would be great – (although zxcvbn is only really interested in accurately estimating the password strength of weak (<104 guesses) passwords with the default of 234kB of data). Ideally, I’d love to see the real-world “crackability” statistics captured before and after this change. Special characters from this set % ^ * ( ) + - = ; , ?

Additionally, it must contain at least 3 of the following: To reset the password for your personal email address, Ensure that you are using the correct OUR can be accessed using the following enabled on your browser. Not to worry, the laptop has full disk encryption; we are safe, but unfortunately the recordings are lost as well as transcriptions. Ideally, this would be in consultation with fellow academics or practitioners with specific real-world cracking experience. you can use the 'My Credentials' section in the Online User Registration application. NOTE: You cannot use your UCAS ID to register with OUR.

×. by UCL of all other services that you can access using your personal email address and password as and when you become eligible to use them.

Information Security Research & Education, University College London (UCL). The evolution of the mean password strength is underpinned by cyclical behaviours. The Research Institute for Sociotechnical Cyber Security is the UK’s first academic research body to focus on the entire culture of security within organisations. It is quoted in all communications sent by No data sharing and no inbox overload guaranteed! Why do I need to use Online User Registration (OUR) ?

The password must be exactly 8 characters long.

fi.becker,s.parkin,[email protected] Abstract We present an opportunistic study of the impact of a new password policy in a university with 100,000 staff and students.

However, from a cost-benefit analysis the intervention is counterproductive: All passwords at UCL fall into what Florencio et al. In the new policy, passwords with Shannon Information Entropy of 50 bits receive a lifetime of 100 days, and passwords with 120 bits receive a lifetime of 350 days: Additionally, the new policy penalises the lifetime of passwords containing words from a large dictionary. This implies that users on average change their password 22 days before expiration. * While difficult to arrange with one’s IRB, I’d love to see follow-up statistics on the real-world “crackability” of these passwords – resistance to actual cracking. There is a strong positive correlation between password strength and likelihood of reset before expiration: A user with 300 days lifetime is 4 times as likely to forget their password than a user with a lifetime of 100 days. When you apply for a programme at UCL: Use OUR to register your personal email address and set a password for it. UCL发来邮件一个链接里让我注册还要create password 但是我试了半个小时!!按照他密码的要求试了n遍都说我not strong enough!那是要我怎样啊!臣妾做不到啊!T . Programme. In October 2016, UCL’s Information Services Division (ISD) implemented a new password policy to encourage users to choose stronger passwords. Your email address will not be published. Subscribe to our occasional newsletter to stay in the cybersecurity loop. This is fascinating and much-needed work! What can infosec learn from strategic theory? This manifests twice in this figure: at the start of the deployment of the new system where there are no existing users (the increase in password strength is delayed until February ’17); and again, with the enrolment of over 10,000 new students who set their first password around September ’17, in time for the start of the new academic year. As mentioned earlier, Imperial is now ranked above UCL in the QS World University Rankings® 2021, ranking eighth to UCL’s tenth. Further details can be found in the full paper: “The Rewards and Costs of Stronger Passwords in a University: Linking Password Lifetime to Strength”.

As this large number of users have all set their initial passwords in a short time frame, their first regular password change occurs from November ’17 onwards. An inquiry into University College London’s historical links with eugenics has issued its final report, despite the fact that a majority of its committee refused to sign it because they felt it did not go far enough. Q. When you are offered a place at UCL and you accept it:

We also observed that stronger passwords cause a higher reset frequency, which increases interactions with online self-help and helpdesk support. / & [ ] { }, Does not contain your firstname or surname, Is not based on a dictionary word or a proper name, University College London, Gower Street, London, WC1E 6BT Tel: +44 (0) 20 7679 2000. * I’d also love to see an expansion of the initial UX and messaging to your users, to include information on how to generate and use random passphrases (which have higher classic Shannon entropy, higher rates of memorization success, and significantly higher resistance to real-world cracking). The intervention was clearly successful: users – of all user groups – have been choosing stronger passwords in return for longer lifetime.

While the average password lifetime of all groups is increasing as the users renew their password, the division between users with 0 or 1 resets and users with more resets is pronounced, separated by at least 10 days of lifetime. A strong password is: not your username; not your name, your friend’s name, your family member’s name, or a common name; not your date of birth; not a dictionary word; not like your previous passwords; not a keyboard pattern, such as qwerty, asdfghjkl, or 12345678 This analysis suggests that one reset per year does not affect the system’s performance, but two or more resets do (which applies to 27% of users). The institute is managed by the RISCS Management Team based at University College London. Portico Services team on. A couple of suggestions for follow-up work: * It appears from the paper that only Shannon entropy was used to measure password complexity – though the paper also explicitly mentions zxcvbn and other efforts and acknowledge that Shannon entropy is insufficient to gauge offline cracking resistance. Q. The only feedback they get is the expiration (in days) of their passwords, updated on every modification to the new password.

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