Instead of notifying more than 143 million people of a breathtaking data breach that potentially compromised personal and financial information in their credit files, Equifax executives were selling their stock, a federal class action lawsuit claims.

On Thursday, soon after Equifax executives began going public about a massive hack of their credit files, former Georgia Gov. Roy Barnes filed the class action suit in federal court in Atlanta on behalf of all consumers whose data was compromised.

The suit accuses the Atlanta-based credit bureau of “gargantuan failures” in securing and safeguarding consumer information and compounding the resulting problems by failing to provide timely, accurate and adequate notice about the breach, which Equifax acknowledges occurred between mid-May and July.