GuardLens: Supporting Safer Online Browsing for People with Visual Impairments
summary
A browser extension called GuardLens extracts and lists privacy/security cues for people with visual impairments, built through an iterative user-centered process with 25 PVIs and evaluated with a 19-participant main study. Participants identify spoof sites better with GuardLens (55% failed without it, 72% identified spoofs with it). Helpful cues include domain age, HTTPS encryption, and top-five search ranking. Conflicting cues on unpopular sites sometimes make legitimate pages look risky, so clearer threat prioritization is needed.
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chapters (9)
- 0:00GuardLens introduction
- 1:12Browsing challenges for PVIs
- 2:39How GuardLens helps
- 4:24Research questions and method
- 6:51Key accessibility findings
- 8:15GuardLens vs spoof sites
- 9:40Conflicting cues and design
- 10:49Browser and tool recs
- 11:40Q&A and conclusion
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