nts.go.kr Listed by lockbit3 Ransomware Group

On March 29, 2023, the South Korean National Tax Service domain nts.go.kr appeared on the LockBit 3.0 ransomware leak site. The listing states that internal files were exfiltrated during a ransomware attack, although the exact number of records affected and the specific types of data taken remain undisclosed by the group.

Details from the Leak Site

The primary disclosure on the LockBit 3.0 leak site claims the attackers successfully stole internal data from nts.go.kr. No sample files were published at the time of listing, and the notification does not quantify the volume of data or list particular categories such as taxpayer records, employee information, or financial documents. The entry simply states that a ransomware incident occurred and that exfiltrated material is held by the operators. Public reporting on LockBit 3.0 indicates the group typically posts victim names as a pressure tactic when negotiations fail.

Why This Matters for You and Your Family

Even when exact data types are unknown, any breach at a national tax authority carries serious consequences. Tax agencies hold names, addresses, government ID numbers, income details, and banking information for millions of citizens. If any of those records were taken, your family could face long-term risks including fraudulent tax filings, identity theft, and targeted phishing campaigns that reference real financial history. Ordinary people whose tax data leaks often discover the breach only after damage has already occurred, such as when unexpected liens appear or when scammers contact them using accurate personal details.

March 29, 2023 marks the public confirmation of this incident. Because the leak site does not detail what was taken, every individual who has filed taxes in South Korea must treat their information as potentially exposed.

Doxxing and Identity-Chain Risks

Tax records create powerful links between your real identity and online activity. A single leaked government ID or home address can tie together email accounts, phone numbers, social-media handles, and even children’s gaming usernames that share the same household details. Attackers chain these connections to build full profiles for extortion, account takeover, or public doxxing. Credential leaks of this nature frequently cascade into gaming platforms, where children’s accounts become entry points for further harassment or theft once parent-linked emails are known.

LockBit 3.0 Track Record

Public reporting attributes the LockBit 3.0 variant to a ransomware operation that first emerged in 2019 under the original LockBit name. The group rebranded to LockBit 3.0 in 2022 after releasing updated tooling. Notable prior victims include large corporations and government-linked entities across multiple countries. Their typical playbook involves initial access through phishing or exploited remote services, followed by rapid exfiltration of internal files before encryption. The extortion style relies on dual pressure: encrypting victim systems while threatening to publish stolen data on their leak site if ransom is not paid. The group routinely sets short deadlines and escalates by contacting journalists or posting teaser samples.

What to do

• Run a DoxxScan to map every link between your handles, emails, phone numbers, and real identity, with cleanup handled by the service.
• Enable continuous DoxxScan monitoring across 13.1B+ breach records and 100+ platforms so the next exposure is caught in hours rather than months.
• Rotate any passwords used on nts.go.kr or related government portals anywhere they are reused, and switch to 2FA through an authenticator app instead of SMS.
• Cover the household with DoxxScan family coverage that extends to dependents and children’s gaming accounts that often chain back to the same address and tax records.
• Let remediation specialists manage takedown requests across data brokers and extortion sites on your behalf.

The incident underscores that government data breaches continue to surface months or years after initial compromise, making ongoing vigilance essential. Start your DoxxScan trial today and use its AI-powered identity-chain mapping together with hands-on remediation by specialists to protect yourself and your family, including gaming accounts that can become vectors for further abuse once tax-related details are known.