Enhancing the Security of Data Breach Notifications and Settlement Notices

Ryan Amos, Mihir Kshirsagar, Ed Felten, and Arvind Narayanan write:

We couldn’t help noticing that the recent Yahoo and Equifax data breach settlement notifications look a lot like phishing emails. The notifications make it hard for users to distinguish real settlement notifications from scams. For example, they direct users to URLs on unfamiliar domains that are not clearly owned by the company that was breached nor any other trusted entity. Practices like this lower the bar for scammers to create fake phishing emails, potentially victimizing users twice. To illustrate the severity of this problem, Equifax mixed up domain names and posted a link to a phishing website to their Twitter account. Our discussion paper presents two recommendations to stakeholders to address this issue.

First, we recommend creating a centralized database of settlements and breaches, with an authoritative URL for each one, so that users have a way to verify the notices distributed.

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