high severity January 28, 2025 · 3 min read Unverified claim — what this is

INDONESIA TAXPAYER IDENTIFICATION NUMBER (NPWP) Listed by Babuk2 Ransomware Group

If you are a customer of INDONESIA TAXPAYER IDENTIFICATION NUMBER (NPWP), here’s what is being claimed, and what it would mean for you.

INDONESIA TAXPAYER IDENTIFICATION NUMBER (NPWP)
— from Babuk2’s own leak-site posting. This is the group’s claim, quoted verbatim; it is not GalaxyWarden’s reporting and has not been independently verified.

INDONESIA TAXPAYER IDENTIFICATION NUMBER (NPWP) Listed by Babuk2 Ransomware Group

On January 28, 2025, the babuk2 ransomware group listed internal files stolen from an Indonesian government system containing taxpayer identification numbers known as NPWP.

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What Public Reporting Shows

Public reporting indicates the babuk2 group published a post on its leak site claiming to have exfiltrated internal files during a ransomware attack on an Indonesian tax-related database. The exact number of affected records remains unknown, though the listing specifically references NPWP taxpayer identification numbers. Available reporting describes the data as internal files rather than a simple database dump. No evidence has surfaced that the attackers have published the full dataset publicly, but the threat of selective release or sale persists. The incident follows the group’s typical pattern of posting proof of compromise and waiting for payment before escalating.

Why This Matters for You and Your Family

If your Indonesian tax records were among those taken, the exposure of your NPWP number creates a direct link between your real identity and any other personal data already circulating online. Criminals can combine a taxpayer ID with an email address, phone number, or date of birth to open accounts, file fraudulent tax returns, or impersonate you with government agencies. For families, a single breach can affect spouses and dependents whose records are often linked through shared addresses or joint filings. Once your NPWP is loose, it becomes a permanent anchor for identity thieves who rarely delete stolen data.

The Doxxing and Identity-Chain Implications

An exposed NPWP does not stop at tax fraud. It can be cross-referenced with breached gaming accounts, social-media handles, or school records to build a complete profile of you and your children. Credential leaks of this nature frequently cascade into account takeovers because people reuse the same passwords across tax portals, email, and online games. Public reporting shows that children’s gaming accounts are regularly targeted once a family address or parent’s identity is confirmed. The result is doxxing chains that expose home addresses, phone numbers, and photos within days of the initial leak.

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Report details & sourcing

Attributed to Babuk2 · 178 incidents tracked →

Severity High the filing does not enumerate what was exposed

Disclosed January 28, 2025

Last reviewed August 8, 2026

Affected Unconfirmed

By GalaxyWarden Threat Research · Editorial & sourcing standards

Unverified claim — what this report is

This page documents a public listing on a ransomware/extortion group’s leak site, tracked via public threat-intelligence sources. A listing is the attacker’s claim. GalaxyWarden aggregates and reports such claims; we have not independently verified that a breach occurred, what data (if any) was taken, or the accuracy of anything the group asserts, and the named organisation has not necessarily confirmed the incident. Sections above describe what the listing shows and the group’s documented history — not verified findings about the named organisation. If you represent this organisation and believe anything here is inaccurate, tell us and we’ll review it promptly.

Editorial & sourcing policy

GalaxyWarden is a breach-monitoring service and news aggregator. We do not exfiltrate, host, purchase, or redistribute stolen data. Breach information is compiled from publicly accessible sources and threat-intelligence platforms, and is reported as claims attributed to their source. We promptly correct or remove material shown to be inaccurate — see our content & takedown policy or write to support@galaxywarden.com.

Threat-actor tracker

Babuk2 — 178 incidents tracked

Every breach we've attributed to Babuk2, in one running log. See who else they've hit →

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