1.2 Million NIKs of Poor Residents Stolen, Central Java Diskomdigi Requests BSSN Assistance

SEMARANG – The head of the Communications, Informatics and Digitalisation Office (Diskomdigi) of Central Java Province, Lilik Henry Ristanto, revealed that the office has requested assistance from the National Cyber and Crypto Agency (BSSN) to handle the hacking and theft of 1.2 million national identity numbers (NIK) belonging to residents classified as poor in Central Java. He said BSSN has already carried out handling measures.

“On 25 February, five days after that notification, the head of Central Java’s Diskomdigi, who serves as chair of the CSIRT (Computer Security Incident Response Team), sent a letter to the head of BSSN of the Republic of Indonesia requesting post-incident assistance, and this has been handled by BSSN up until now,” he said in an interview in the city of Semarang on Thursday (16/7/2026).

Lilik revealed that the office had received notification from BSSN on 20 February 2026 about indications of a data leak. According to Lilik, upon receiving the information about the data leak from BSSN, Central Java’s Diskomdigi took follow-up measures within the limits of its authority.

He said the most important step taken was to carry out an assessment of the system. “Our colleagues from the cryptography and cybersecurity division conducted a self-assessment, then deemed it necessary — given that the risk mitigation would have a greater impact and would also require substantial resources — that letter dated 25 February was our effort to minimise the risk of further leaks,” Lilik said, referring to the letter requesting assistance sent to BSSN.

He explained that the target of the hacking was the Central Java Integrated Data (DT) application. The application can also be accessed via a website. According to Lilik, the application is managed by the Central Java Social Affairs Office (Dinsos).