Tata Consultancy Services (TCS)

In a BSE filing, TCS said it had received threat-intelligence alerts about possible exposure of employee data, that the information "appears to be" more than four years old and limited to basic employee details, and that there was no indication customer data, customer systems or its own operational systems were impacted. It said it found no credible evidence of a system breach.

TCS has not said whether it will notify affected employees or law enforcement, nor clarified whether the data came from an earlier undisclosed incident.