T-Mobile was slapped with a data breach class action Thursday in New York Western District Court over the recent cyberattack that exposed the personal information of more than 50 million individuals. The suit, filed by Thomas & Soloman LLP, is part of an onslaught of litigation accusing T-Mobile of failing to secure its customer data.

According to the suit, the cybercriminals took public responsibility for the data breach and ridiculed T-Mobile's security measures as "lax."