Password manager maker LastPass says hackers stole customer support case data during Klue breach

While the vaults were encrypted with master passwords only known to the customer, the breach allowed hackers to brute-force and crack the vaults offline with the weakest master passwords, and subsequently access the secrets inside. Several crypto thefts were later linked to the LastPass breach, after hackers were suspected of stealing the victim’s wallet keys by cracking their password vault.

Klue CEO Jason Smith said in a blog post that the company identified hackers in its systems on June 12. A hacking and extortion group called Icarus took credit for the breach, and have publicly threatened to release the stolen data if a ransom isn’t paid.

Smith has not responded to TechCrunch’s emails about the incident, including how many customers are affected or if the company has been in contact with the hackers.