Zhixuan Zhou, Tanusree Sharma, and Luke Emano, University of Illinois at Urbana-Champaign; Sauvik Das, Carnegie Mellon University; Yang Wang, University of Illinois at Urbana-Champaign
Crypto wallets are a key touch-point for cryptocurrency use. People use crypto wallets to make transactions, manage crypto assets, and interact with decentralized apps (dApps). However, as is often the case with emergent technologies, little attention has been paid to understanding and improving accessibility barriers in crypto wallet software. We present a series of user studies that explored how both blind and sighted individuals use MetaMask, one of the most popular non-custodial crypto wallets. We uncovered inter-related accessibility, learnability, and security issues with MetaMask. We also report on an iterative redesign of MetaMask to make it more accessible for blind users. This process involved multiple evaluations with 44 novice crypto wallet users, including 20 sighted users, 23 blind users, and one user with low vision. Our study results show notable improvements for accessibility after two rounds of design iterations. Based on the results, we discuss design implications for creating more accessible and secure crypto wallets for blind users.
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author = {Zhixuan Zhou and Tanusree Sharma and Luke Emano and Sauvik Das and Yang Wang},
title = {Iterative Design of An Accessible Crypto Wallet for Blind Users},
booktitle = {Nineteenth Symposium on Usable Privacy and Security (SOUPS 2023)},
year = {2023},
isbn = {978-1-939133-36-6},
address = {Anaheim, CA},
pages = {381--398},
url = {https://www.usenix.org/conference/soups2023/presentation/zhou},
publisher = {USENIX Association},
month = aug
}
