Database of Indonesia Senior High School Students Leaked

Dark Web News Analysis: Alleged Database of Indonesia Senior High School Students is Leaked

A highly concerning listing has been identified on a hacker forum, detailing the alleged leak of a database containing the personal information of Indonesian Senior High School students. The leak includes a wide range of highly sensitive Personally Identifiable Information (PII), such as NIK (National ID Number), NISN (National Student ID Number), birthdate, email, address, phone number, and even images of KK (Family Cards). A free sample of 20,000 records has been provided as proof. The data is claimed to be in JSON format and updated as of July 2025, which is a suspicious future date.

The nature of this compromise is profoundly serious due to the extreme sensitivity of the data. The combination of unique national identifiers (NIK), student IDs (NISN), and family information (KK) creates a comprehensive profile for each student and their family. This information is a goldmine for financially motivated cybercriminals and politically motivated threat actors alike, enabling a wide range of malicious activities, from sophisticated scams to identity theft.

Key Insights into the Indonesian Student Data Compromise

This alleged data breach carries several critical implications:

• Extreme Sensitivity of Leaked Identifiers: The presence of NIK and KK data is particularly alarming. The NIK is a unique national ID that is fundamental to all official transactions in Indonesia. The leak of this information, alongside family data from the KK, makes students and their families highly vulnerable to identity theft, financial fraud, and targeted scams. This is a severe failure to protect the foundational digital identity of a large number of minors.
• Direct Violation of Indonesia’s UU PDP: The breach is a clear violation of Indonesia’s Personal Data Protection Law (UU PDP). This law requires educational institutions, as data controllers, to implement robust security measures to protect student data. In the event of a breach, the law mandates immediate notification to the national authority and affected individuals. Failure to comply can result in severe administrative fines and legal penalties.
• Suspicious Future-Dated Data: The claim that the data is “updated as of July 2025” is a major red flag that warrants a high degree of skepticism. This is likely a deliberate tactic by the threat actor to create confusion and make it difficult for investigators to trace the true origin of the data. However, the presence of a legitimate-looking sample suggests that the underlying information could be real, with the date being a fabrication to mislead security researchers.
• Ongoing Threat to a Vulnerable Population: The leaker’s claim that the database size will increase suggests that the threat actor may have ongoing access to the compromised system. This poses a long-term threat to the integrity of the school’s data and the privacy of its students. The targeting of minors, who may lack the digital literacy to protect themselves, makes this a particularly concerning incident.

Critical Mitigation Strategies for the School and Indonesian Authorities

In response to this alleged incident, immediate and robust mitigation efforts are essential:

• Immediate Incident Response & Notification: The affected school must immediately activate its incident response plan. A comprehensive forensic investigation is required to verify the authenticity of the dark web claim, identify the source of the breach, and assess the full extent of the damage. This must be followed by a formal notification to the Ministry of Communication and Informatics (Kominfo) and the National Cyber and Crypto Agency (BSSN) in compliance with the UU PDP.
• Enhanced Security and Monitoring: The school must implement enhanced monitoring for any suspicious activity related to student data and for the misuse of compromised credentials. The integrity of the data must be validated by cross-referencing it with internal records. A review of all security policies and access controls is critical.
• Proactive User Awareness and Communication: Given the high risk of identity theft and targeted scams, the school should immediately conduct awareness training for students, parents, and staff. This training should focus on identifying phishing attempts, social engineering tactics, and the importance of not sharing sensitive PII online.
• Review of Data Handling Policies: The incident highlights a severe vulnerability in the school’s data handling practices. A full review of how student and parent information is collected, stored, and secured is necessary to prevent future breaches. This should include an assessment of data retention policies and the use of encryption.

Need Further Assistance?

If you have any further questions regarding this critical incident, suspect your personal data or your organization’s sensitive information may be compromised, or require advanced cyber threat intelligence and dark web monitoring services, you are encouraged to use the ‘Ask to Analyst’ feature to consult with a real expert, contact Brinztech directly, or, if you find the information irrelevant, open a support ticket for additional assistance.