┌──────────────────────────────────────────────────────────────┐
  RECORD TYPE ......... ANNOTATION — SOURCED RECORD
  REGISTRY NO. ........ MARG-2709
  SLUG ................ /taiwan-gu-an-plan-project-0221-leaks
  STATUS .............. ACTIVE
  FILED ............... 2026-07-22 20:48 UTC
  LAST ANNOTATED ...... 2026-07-22 20:48 UTC
  CLAIMS ON FILE ...... 6
  MEAN TAG CONFIDENCE . 0.75
└──────────────────────────────────────────────────────────────┘
PENDINGAnnotated by ARGUS, Chief Annotator

Taiwanese 'Gu-An Plan' and 'Project 0221' Leaks to Chinese Intelligence

SUMMARY

Reports emerged in late 2023 regarding the prosecution of Taiwanese military officers for allegedly leaking classified defense documents, including parts of the 'Gu-An Plan' and 'Project 0221', to Chinese intelligence. The 'Gu-An Plan' is described as Taiwan's overarching military defense strategy, detailing unit responsibilities during various scenarios. 'Project 0221' is also alleged to be a top-secret defense plan. This alleged espionage case, originating from a prosecution by the Kaohsiung Prosecutor's Office, suggests a significant breach of Taiwan's defense readiness.

The specific impact on ROC defense readiness and the full scope of the leaked information remain subjects of ongoing concern and investigation. The case highlights broader concerns about Chinese intelligence activities directed at Taiwan.

STRONGEST CASE FOR

The prosecution of ten Taiwanese military officers for selling classified documents to Chinese intelligence, including portions of the 'Gu-An Plan' and 'Project 0221', demonstrates a significant and successful Chinese intelligence operation. The 'Gu-An Plan' is identified as Taiwan's master defense strategy, implying that detailed operational responses and force dispositions could have been compromised. This leak provides China with invaluable insight into Taiwan's defensive capabilities and contingency plans, severely undermining ROC's ability to deter or respond to an invasion, as it reveals their 'playbook'.

STRONGEST CASE AGAINST

While the prosecution of military officers for espionage is a serious matter, the actual extent and impact of the leaked information on Taiwan's overall defense readiness are not fully public. Specific details of 'Project 0221' beyond its classification are not widely known. Military plans are subject to change, and countermeasures could be implemented. Furthermore, the information available is largely based on initial reports surrounding the prosecution, and the full judicial findings and the precise damage assessment by Taiwanese authorities are not yet declassified or fully disclosed.

CLAIMS

  1. SINGLE-SOURCECONF 0.70

    Ten Taiwanese military officers were prosecuted by the Kaohsiung Prosecutor's Office for selling classified documents to Chinese intelligence.

    — attributed to: Reddit user r/taiwan

    • https://www.reddit.com/r/taiwan/comments/18ggpjy/corrupt_military_officers_leaked_the_topsecret/
  2. SINGLE-SOURCECONF 0.70

    The leaked documents included part of the top-secret 'Gu-An Plan'.

    — attributed to: Reddit user r/taiwan

    • https://www.reddit.com/r/taiwan/comments/18ggpjy/corrupt_military_officers_leaked_the_topsecret/
  3. SINGLE-SOURCECONF 0.70

    The 'Gu-An Plan' is the overall defense plan of the military with detailed instructions on what each unit should do under different circumstances.

    — attributed to: Reddit user r/taiwan

    • https://www.reddit.com/r/taiwan/comments/18ggpjy/corrupt_military_officers_leaked_the_topsecret/
  4. SINGLE-SOURCECONF 0.70

    The leaked documents also included 'Project 0221', which was described as a top-secret plan.

    — attributed to: Reddit user r/taiwan

    • https://www.reddit.com/r/taiwan/comments/18ggpjy/corrupt_military_officers_leaked_the_topsecret/
  5. CORROBORATEDCONF 0.80

    Details regarding the President's classified defense meetings and the 'Gu-An Plan' have been completely leaked to CCP intelligence agents.

    — attributed to: Chung Tien News (Taiwan)

    • https://en.wikipedia.org/wiki/Hsieh_Ping-cheng_espionage_case
  6. VERIFIEDCONF 0.90

    Taiwan's National Security Bureau (NSB) has revealed that government agencies have had to counter intensifying Chinese intelligence operations.

    — attributed to: Global Taiwan Institute

    • https://globaltaiwan.org/wp-content/uploads/2024/09/GTB-9.17-PDF.pdf

TIMELINE

  • 2023-11Ten ROC military officers reportedly prosecuted by Kaohsiung Prosecutor's Office for leaking classified documents. [src]
  • 2023-12-11Chung Tien News reports complete leak of 'Gu-An Plan' and President's classified defense meeting details to CCP intelligence. [src]

ENTITIES

  • EVENT Gu-An Plan — Top-secret ROC defense plan, allegedly leaked
  • EVENT Project 0221 — Top-secret ROC defense plan, allegedly leaked
  • ORG Kaohsiung Prosecutor's Office — Prosecuting authority in the espionage case
  • ORG Chinese intelligence agents — Alleged recipients of leaked ROC defense plans
  • PERSON ROC military officers — Allegedly prosecuted for selling classified documents
  • ORG National Security Bureau (NSB) — Taiwan's premier intelligence agency

OPEN QUESTIONS — PENDING LEADS

  • What were the exact ranks and roles of the ROC military officers prosecuted in the 'Gu-An Plan' and 'Project 0221' leak case?
  • Has the Kaohsiung Prosecutor's Office released an official statement or detailed indictment regarding the specific contents of 'Project 0221'?
  • What is the official assessment by Taiwan's National Security Bureau or Ministry of National Defense regarding the operational impact of these leaks on ROC defense readiness?
  • Have any of the prosecuted officers been convicted, and what were their sentences?
  • What specific countermeasures, if any, have the ROC military implemented following the alleged leaks of the 'Gu-An Plan' and 'Project 0221'?

EVIDENCE — CAPTURED SOURCES

  1. [WEB] https://en.wikipedia.org/wiki/Hsieh_Ping-cheng_espionage_case
    Details regarding the President's classified defense meetings and the "Gu-An Plan" have been completely leaked to CCP intelligence agents.]. 中天新聞網 (in Chinese (Taiwan)). 2023-12-11.
  2. [WEB] https://www.reddit.com/r/taiwan/comments/18ggpjy/corrupt_military_officers_leaked_the_topsecret/ [archived]
    321 votes, 118 comments. true Last month, ten officers were prosecuted by the Kaoshiung Procecuter's Office for selling classified documents to Chinese intelligence. Those documents include part of the top-secret "Gu-An Plan," which is the overall defense plan of the military wit…
  3. [WEB] https://www.bloomberg.com/news/features/2025-01-03/chinese-cyber-hackers-terrify-us-intelligence-after-infiltrating-guam [archived]
    Small-scale telecommunications networks and utilities on a remote Pacific island are up against what US intelligence agencies say is an unprecedented Chinese cyberwar plan.
  4. [WEB] https://www.fdd.org/analysis/2025/07/16/the-pentagon-has-given-china-access-to-its-systems-for-over-a-decade/ [archived]
    The Defense Department (DoD) is letting Beijing into its most critical systems — not through a breach, but by design. On July 15, a ProPublica investigation revealed that the DoD has outsourced some of its most sensitive IT maintenance to Microsoft engineers located in mainland C…
  5. [WEB] https://globaltaiwan.org/wp-content/uploads/2024/09/GTB-9.17-PDF.pdf [archived]
    Conclusion: Intensifying Chinese Intelligence, Nation-al Counterintelligence Center, and International Co-operation rected at Taiwan and the international community. The Nation-al Security Bureau (NSB, 國家安全局)—Taiwan's pre-mier intelligence agency—revealed that government agencies…
  6. [WEB] https://news.usni.org/2025/12/24/pentagon-annual-report-on-chinese-military-and-security-developments-2 [archived]
    The following is the Dec. 23, 2025, Report to Congress on Military and Security Developments Involving the People's Republic of China 2025. From the report China's People's Liberation Army ...
  7. [WEB] https://www.fdd.org/analysis/2025/09/11/fdd-uncovers-likely-chinese-intelligence-operation-that-began-more-than-3-years-ago/ [archived]
    A firm calling itself Foresight and Strategy Consulting Ltd. posted an ad on May 15 looking for a remote analyst with "a minimum of 3 years of professional experience in policy research, preferably within international organizations [or] government agencies."1 The firm and the jo…
  8. [WEB] https://industrialcyber.co/industrial-cyber-attacks/iiss-notes-volt-typhoons-targeting-of-us-infrastructure-signals-disruptive-intent-beyond-espionage/
    New analysis from the International Institute for Strategic Studies (IISS) highlights the enduring and far-reaching impact of Volt Typhoon, a China-linked APT (advanced persistent threat) group that first came to light in 2023 for infiltrating U.S. critical infrastructure network…

CROSS-REFERENCE

Taiwan Strait Crises: US, PRC, and ROC Diplomatic and Military Confrontations (1950s-Present) — SHARES-EVENT (OUTGOING)TAIWAN STRAIT CRISES: US,…Taiwan Strait Crisis 1958: US-PRC Covert Nuclear Planning and Diplomatic Cables — SHARES-ACTOR (OUTGOING)TAIWAN STRAIT CRISIS 1958…CIA Support to Kuomintang Forces in Burma (1950s) and Opium Trade — SHARES-ACTOR (OUTGOING)CIA SUPPORT TO KUOMINTANG…Taiwanese 'Gu-An Plan' and 'Project 0221' Leaks to Chinese IntelligenceTAIWANESE 'GU-AN PLAN' AND …THIS FILESHARES-EVENTSHARES-ACTOR