AI Threat Watch

Case openai-kimsuky-bluenoroff-rdpState actor AI opsWorldwide

Kimsuky and BlueNoroff used ChatGPT to debug RDP brute-force code and research intrusion

OpenAI banned accounts linked to North Korea's Kimsuky and BlueNoroff that gathered information on cyber intrusion tools and cryptocurrency topics and debugged code for RDP brute-force attacks.

MediumAttack using AIStatus: ContainedVerified case file

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Reported
Feb 21, 2025
Location
Worldwide
Target
Cryptocurrency and intrusion targets of North Korean groups
Severity
Medium
Triggered by
Kimsuky and BlueNoroff (North Korea)
Actor type
State-sponsored
Reported loss
None reported
CVE
None

What happened

OpenAI banned accounts linked to North Korea's Kimsuky and BlueNoroff that gathered information on cyber intrusion tools and cryptocurrency topics and debugged code for RDP brute-force attacks.

Impact: Incremental productivity uplift; no novel capability observed.

Who triggered it

Actor: Kimsuky and BlueNoroff (North Korea)

Attribution: OpenAI attributed the accounts to the two DPRK groups with industry-partner input.

Motive: Espionage and cryptocurrency theft

How it happened

Attack vector: ChatGPT used for tool research and debugging of brute-force code

Root cause: Low-level coding help provided to accounts later tied to state actors

Timeline

  1. OpenAI publishes the cyber threat actor case and bans the accounts
  2. OpenAI June 2025 report reiterates DPRK cyber actor activity

Response

Accounts banned, indicators shared with partners.

Current status: Contained

Sources (open in a new tab)

Cite this case

Kimsuky and BlueNoroff used ChatGPT to debug RDP brute-force code and research intrusion. AI Threat Watch, case openai-kimsuky-bluenoroff-rdp, Feb 21, 2025. https://aithreat.io/cases/openai-kimsuky-bluenoroff-rdp/

Permanent link: https://aithreat.io/cases/openai-kimsuky-bluenoroff-rdp/

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