Asahi’s full notice can be viewed on its website:
🔗 Asahi Official Cyberattack Announcement
Qilin Steps Forward: A Notorious Ransomware Threat
Although Asahi initially said no group had claimed responsibility, the ransomware organization Qilin posted Asahi to its dark-web leak portal.
Qilin’s history includes collaboration with North Korean–linked actors, known as Moonstone Sleet, and high-profile attacks across Asia.
Cybersecurity analysts note that Qilin has been increasingly active, including breaches such as:
🔗 Qilin Ransomware Turns MSP Breach Into Korean Leaks Data Heist
The BBC also reported that Qilin claimed responsibility and listed Asahi’s stolen files online.
Scale of the Compromise: Over 1.5 Million Records Exposed
Asahi confirmed that the attackers accessed servers and PCs containing data from more than 1,525,000 customers, including:
- Names
- Mailing addresses
- Phone numbers
- Email addresses
- Gender data
Another 300,000 employees, family members, and business contacts may have had additional data accessed.
