A former state senator has expanded his lawsuit over the exposure of millions of South Carolina tax returns to include a separate state agency and private company.
Spartanburg attorney John Hawkins said Monday he's added Trustwave and the Division of State Information Technology to a lawsuit he filed last week over the massive security breach at the state's tax collection agency.
The former Republican senator claims the company hired by the Revenue Department for computer security failed to protect taxpayers' data. The state has used Trustwave since 2005.
State officials say 3.6 million personal income tax returns and up to 657,000 business filings were compromised by an international hacker. Hawkins initially sued Gov. Nikki Haley, the Department of Revenue and its director for negligence. The lawsuit seeks class-action status.