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Incidents involving:

Bharat Sanchar Nigam Limited (BSNL)

Data breachResolved

BSNL telecom data breach

A threat actor advertised roughly 278 GB of data stolen from India's state-owned telecom BSNL — including IMSI numbers, SIM details, home location register data, and security keys — exposing millions of subscribers to SIM-cloning and fraud, in the carrier's second breach in six months.

Victim
Bharat Sanchar Nigam Limited (BSNL)