Dhaka, March 29 -- In one of the largest corporate cyberattacks in Bangladesh, the country's leading supermarket chain Shwapno has confirmed that its customer database was breached, with hackers demanding a ransom of $1.5 million.

The incident came to light after sensitive customer information-including names, mobile phone numbers and purchase histories-began circulating on social media, raising widespread concern among users.

Shwapno, a subsidiary of ACI Limited, operates more than 800 outlets across 63 districts and serves over 4 million registered customers, indicating the nationwide scale of the exposure.

According to company officials, the attackers had gained unauthorised access to the system months earlier, with indications that...