May 31 Dashlane Attack: Here’s How Hackers Copied Some Password Vaults

InnovationCybersecurityMay 31 Dashlane Attack: Here’s How Hackers Copied Some Password VaultsByDavey Winder,Senior Contributor.Forbes contributors publish independent expert analyses and insights. Davey Winder is a veteran cybersecurity writer, hacker and analyst.Follow AuthorJun 05, 2026, 10:16am EDT--:-- / --:--This voice experience is generated by AI. Learn more.This voice experience is generated by AI. Learn more.Dashlane Password Manager hack attack methodology confirmed.picture alliance via Getty ImagesFollowing an investigation into a security incident that resulted in an unknown number of Dashlane Password Manager users being temporarily locked out of their accounts, and, more importantly, copies of the encrypted password vaults of 20 of them being downloaded by an attacker, it can now be revealed exactly what happened. In the interests of full transparency, which is exactly how a cybersecurity platform should be operating, Dashlane has now published the results of its investigation into the May 31 brute-force attack.The good news is that, with the Dashlane investigation now complete, no additional impacts on users beyond those already reported have been identified, nor is there any evidence that Dashlane’s internal systems were compromised. Just as importantly, although it will likely offer little comfort to those affected by the incident, the attackers’ methodology has now been fully identified. The significance of these technical findings, however, cannot be overstated as they enable Dashlane’s security teams to mitigate future risk to users.ForbesGoogle Chrome 149: New Update Fixes 429 Security Flaws, 22 CriticalBy Davey WinderDashlane Publishes Conclusion Of Security Incident InvestigationTo recap, the attack commenced on Sunday, May 31, when Dashlane confirmed that it was investigating “reports from several users having received an email that their account has been suspended.” Some users also reported difficulty logging in to Dashlane after resetting t...