Publications

Better the Devil You Know: A User Study of Two CAPTCHAs and a Possible Replacement Technology

Kat Krol, Simon Parkin and M. Angela Sasse Abstract CAPTCHAs are difficult for humans to use, causing frustration. Alternatives have been proposed, but user studies equate usability to solvability. We consider the user perspective to include workload and context of use. We assess traditional text-based CAPTCHAs alongside PlayThru, a ‘gamified’ verification Read more…

By RISCS Admin, ago
Publications

Assessing the User Experience of Password Reset Policies in a University

Simon Parkin, Samy Driss, Kat Krol and M. Angela Sasse Abstract Organisations often provide helpdesk services to users, to resolve any problems that they may have in managing passwords for their provisioned accounts. Helpdesk logs record password change events and support requests, but overlook the impact of compliance upon end-user productivity. System managers are not Read more…

By RISCS Admin, ago