The Qilin ransomware gang has claimed responsibility for a significant cyberattack against the City of Sugar Land, a suburb of Houston, Texas. On its dark web leak site, the group asserted it had breached the city's network and exfiltrated approximately 800 GB of data. They also posted a direct message to the residents of Sugar Land.
This claim follows an official announcement from the city on October 23, which confirmed it had experienced a cyber incident earlier in the month and was working to restore systems.
While on October 23 the City of Sugar Land acknowledged an "internal network infrastructure" breach that occurred on October 9 and announced working with law enforcement, it has not publicly validated the specific claims made by the ransomware gang.
According to the threat actor's post, the stolen data includes “personal information.”
The city has advised residents that all systems should be available and has provided contact numbers for those still experiencing access issues.
The discrepancy between the city's restoration efforts and Qilin's claims of data theft creates a critical situation for residents, who must now be on high alert.
This alleged Sugar Land data breach highlights the escalating threat that ransomware poses to municipal governments. The theft of personal data elevates the risk of follow-on attacks, such as targeted phishing emails, identity theft, and other fraudulent schemes directed at residents.
Following such incidents, it is imperative for individuals to exercise extreme caution with unsolicited communications.
The Qilin ransomware attack serves as a serious reminder that even with system restoration, the risk of data exposure remains a significant and long-term consequence that requires ongoing vigilance from all affected parties.
This month, Qilin claimed responsibility for a data breach targeting the Shamir Medical Center in Israel. In September, the new CountLoader malware was linked to major ransomware gangs LockBit, BlackBasta, and Qilin.