Aflac recently revealed that hackers stole its customers' data in a cyberattack. Details remain scarce, but the company says it "was caused by a sophisticated cybercrime group" that's targeting the insurance industry.

Aflac, one of the largest insurance companies in the United States, says hackers stole an unknown quantity of its customers’ personal information from its network during a cyberattack earlier this month.

Insurance company Aflac disclosed this week that cybercriminals breached its U.S. network and may have accessed customers’ personal information, the latest in a string of cyberattacks on insurance companies announced this month.