Pemerintah Kabupaten Bojonegoro listed on Nova ransomware leak site

• Ransomware group: Nova
• Country: Indonesia
• Sector: Government & Defense
• Announcement date: April 5, 2026

Nova claims a data breach against Pemerintah Kabupaten Bojonegoro

The threat actor known as Nova has listed the Pemerintah Kabupaten Bojonegoro portal on its leak site. According to the announcement made on April 5, 2026, the group claims that data belonging to the institution has been compromised. This development follows a pattern often seen in modern cyberattacks where threat actors use dedicated leak sites to pressure victims into paying ransoms.

Ransomware groups frequently employ a tactic known as double extortion. In this scenario, attackers do not only encrypt an organization's systems to disrupt operations but also exfiltrate sensitive data before the encryption process begins. The threat of leaking this stolen information on a public forum serves as additional leverage to demand payment. While the listing of an organization on a leak site is a significant event, it does not inherently confirm that a successful breach has occurred until further evidence is provided.

Details regarding the claimed incident

The Nova group announced the listing of the Pemerintah Kabupaten Bojonegoro institution on its leak site on April 5, 2026. The group claims that the institution's data has been compromised. However, the information currently available in the public domain regarding this specific group remains limited. The provided screenshot associated with the claim does not contain any data samples or detailed information regarding the breach.

Information regarding the leaked data

At this time, no information has been shared regarding the nature of the leaked data. The screenshot content appears to be empty, and the listing does not name any specific data types.

About the targeted organization

The Bojonegoro Regency Government is the official government portal for the Bojonegoro Regency in East Java, Indonesia. The institution provides various digital government services, including public services, transparency initiatives, and smart city applications for local residents.

Potential impacts and organizational considerations

As the institution operates a public service portal, a potential data breach could lead to the exposure of citizens' personal information. This may create secondary risks for the local population, such as identity theft or targeted phishing attacks. Such claims against government institutions could lead to disruptions in service continuity and damage institutional trust. Until the data types are clarified, it may be difficult to assess the scope and impact of the breach; however, given the sensitivity of public data, the situation may require close monitoring.

For organizations operating within the government and defense sector, maintaining the integrity of public services is paramount. When faced with such threats, organizations typically focus on several defensive pillars. This includes implementing robust identity and access management to ensure only authorized personnel can access sensitive administrative portals. Furthermore, maintaining offline, immutable backups is a standard industry practice to ensure service continuity in the event of a ransomware attack.

Monitoring for unusual data exfiltration patterns is another critical defensive step. Because many ransomware attacks involve large-scale data transfers to external servers, network monitoring can provide early warnings of a potential breach. Additionally, because public-facing portals are high-value targets, regular vulnerability assessments and patching schedules are essential to close the entry points that threat actors often exploit to gain initial access to government networks.