Data Breach Hits 1 Million Swedes After Insurance Firm Error (1)

One of Sweden’s largest private insurers says it inadvertently allowed some of the world’s biggest tech companies to gain access to private data in a breach that affected up to 1 million clients.

Folksam Group, which oversees about $50 billion in insurance assets, said it shared client data with Facebook, Google, Microsoft, LinkedIn and Adobe, according to a statement on Tuesday. The firm said it discovered the breach after an internal audit.

“We understand that this can cause concern among our customers and we take what has happened seriously,” Folksam said. “We have immediately stopped sharing this personal information ...