User Experience and Information Security Heuristics for Digital Identity Wallets

In digital identity wallets, users can store and manage their digital identities and verification documents such as driving licences and membership cards. Current digital identity wallets face notable challenges in user experience and information security. Users struggle to understand the concept of digital identity wallets, resulting in personal information being either inadequately stored or inadvertently shared with untrustworthy parties. Thus, digital identity wallets should provide a sufficient level of user experience and information security. For evaluating and improving user experience and information security, heuristics can be used to check the degree of fulfilment for each heuristic and to improve digital identity wallets according to the respective heuristics. This paper reports on the development and evaluation of user experience and
information security heuristics for digital identity wallets. To this end, an existing method for user experience heuristics was adapted to also cover information security heuristics. As particular evaluation methods, expert interviews and heuristic evaluations were applied. In total, twelve user experience and six information security heuristics were developed and evaluated.