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.

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.

Customers who have insurance through Aflac may have had their data stolen: earlier this month, the company experienced a cyber attack that compromised personal information belonging to an unknown number of its approximately 50 million policyholders.