A large subset of personal information about current, former and prospective T-Mobile customers was compromised during the cellphone carrier’s data breach in August 2021 and was recently for sale on the dark web, according to a release from Iowa Attorney General Tom Miller’s office. Since the information went up for sale, many individuals have reported receiving alerts from identity theft protection services. Miller urges Iowans who believe they were affected by the breach to monitor their credit and place a freeze or a fraud alert on their credit report by contacting the three major credit bureaus. More information about how to respond is available on the attorney general’s website. The breach affected 53 million individuals, including nearly 35,000 Iowans. Iowa is participating in a multistate coalition of attorneys general investigating the breach and whether T-Mobile had appropriate safeguards in place to protect personal information.