Brinztech Alert: Indonesia Investigates Claims of Massive “Siswa” Data Breach

Dark Web News Analysis

Cybersecurity intelligence from February 2026 has identified a critical threat targeting Indonesia’s educational sector. A threat actor operating under the moniker CY8ER N4TI0N, associated with the groups CLICK and CLICK Catgun, has announced a massive data leak concerning “Siswa” (Indonesian for “students”).

On February 8, 2026, claims began circulating on social media and hacker forums that the personal data of approximately 58 million Indonesian students had been exfiltrated. The actor SN1F, linked to the CY8ER N4TI0N collective, is purportedly offering this data for sale. Most alarmingly, the threat actors claim to have established a “special route“—a persistent backdoor—that allows buyers to extract updated student records directly from government servers in real-time, rather than just selling a static historical file.+1

Key Cybersecurity Insights

While the Ministry of Education and Culture (Pusdatin) and the National Cyber and Crypto Agency (BSSN) are currently validating these claims, the potential implications are “Tier 1” in severity:

• Massive PII Exposure: The leaked data allegedly includes Names, NIK (National ID numbers), Dates of Birth, and Educational Records. For the youth population, this represents a lifetime of identity theft risk, as these foundational identifiers are static.
• Persistent Backdoor “Live” Access: If the “special route” claim is authentic, it indicates a Broken Access Control or a sophisticated API vulnerability. This would allow malicious actors to maintain long-term persistence, effectively turning the government’s own database into a “Data-as-a-Service” for criminals.
• SQL Injection & Infrastructure Weakness: Historical data suggests Indonesian educational platforms are frequently targeted via SQL Injection (SQLi) and unpatched Remote Desktop Protocol (RDP) servers. Actors like CY8ER N4TI0N often use automated tools (e.g., sqlmap) to exploit these legacy vulnerabilities.
• Regional Hub for Cybercrime: The involvement of groups like CLICK Catgun highlights the organized nature of “hacktivism” and cybercrime in the APAC region. These groups often combine political messaging with financial extortion, significantly increasing the reputational damage to state institutions.

Mitigation Strategies

To protect the student population and secure institutional infrastructure, the following strategies are urgently recommended:

• Immediate Infrastructure Audit: The Ministry of Education and related agencies must conduct an exhaustive Compromise Assessment. Focus on identifying unauthorized API calls, irregular database queries, and checking for “Web Shells” that could facilitate the alleged persistent access.
• NIK and Identity Monitoring: Residents and parents should be alerted to monitor for any unauthorized financial activity or predatory loan applications (Pinjol) made in their children’s names.
• Enforce Zero Trust Architecture: Move away from perimeter-based security. Implement Micro-segmentation and Identity-Aware Proxies to ensure that even if one server is compromised via SQLi, the attacker cannot pivot to the core student database.
• Global Credential Reset: Enforce a mandatory password reset for all administrative accounts across the Dapodik (Educational Data Base) and related admission systems. Multi-Factor Authentication (MFA) must be non-negotiable for all privileged users.

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