New Delhi, March 10 -- Imagine logging into your insurance account, only to find a stranger's policy details displayed instead. To make matters worse, imagine the stranger being mistakenly listed as your spouse.

For at least two policyholders of ICICI Lombard, this wasn't a bizarre hypothetical situation; it was a shocking reality, raising serious concerns about data security at one of India's leading insurers.

When Germany-based Arijit Patra logged into ICICI Lombard's website to check his insurance policy details, he was in for a shock. Instead of his own policy, he found details of an unknown woman.

"It was a two-wheeler policy, and details of my actually subscribed policy with ICICI Lombard were not shown," he said.

To make matter...