Legal pressure on Ashley Madison and its parent company is picking up with more class-action lawsuits filed this week in the U.S. against the extramarital hookup site, alleging its negligence in protecting confidential user data.

Suits filed in federal courts in California and Texas by people using John Doe as a pseudonym, claim for damages, alleging that Avid Life Media, the parent company based in Toronto, did not have adequate and reasonable measures to secure the data of users from being compromised, and failed to notify users in time of the breach.

Avid Life Media said it had been made aware of an attack on its systems. Hacker group, Impact Team, released data last week that it claimed it had obtained from the website.

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