The Electronic Frontier Foundation (EFF) and a nonprofit privacy rights group have called on several states to investigate why “hundreds” of data brokers haven’t registered with state consumer protection agencies in accordance with local laws. Data brokers are companies that collect and sell troves of personal information about people, including their names, addresses, phone numbers, financial information, and more. Meanwhile, in Texas, data brokers must follow certain security measures designed to protect consumers’ information. They found that many data brokers didn’t consistently register their businesses across all four states. For now, state-level regulation is Americans’ main source of protection against data brokers.