SUBJECT-4187.dossier · institution · status: active
UC
subject of file

UK National Cyber Security Centre

Cybersecurity agency working with DHS
Tracked because Cybersecurity agency working with DHS · 14 documented connections
Facts on record1
Connections mapped14
Sources cited5
✦ Thin coverage gap +59 connected to 14 entities · only 1 facts on record · flagged for follow-up research
Evidence: 1S
Network web → Timeline → Compare with… → Position Drift → Coverage tone → View on Graph → View Card → Export CSV JSON Dossier ← Entity Directory
Stated vs Revealed
No documented contradictions on file.
PATTERN institution → [oversight] → government agency 56× PATTERN government agency → [oversight] → institution 56× PATTERN institution → [oversight] → government agency → [oversigh... 45× PATTERN government agency → [oversight] → institution → [oversigh... 42× PATTERN institution → [oversight] → institution → [oversight] → g... 42×
Connection Map
Key Connections
→ UKUSA Agreement instrument
treaty_relationship
NCSC operates under the UKUSA Agreement, the foundational treaty for signals intelligence cooperation between UK and US.
→ UK Home Office institution
interagency_cooperation
UK National Cyber Security Centre operates under the purview of the UK Home Office, which oversees domestic security and cybersecurity policy.
→ UK Ministry of Defence institution
interagency_cooperation
NCSC collaborates with the Ministry of Defence on national cybersecurity strategy and defense against cyber threats.
→ Cabinet Office (UK) government agency
policy_coordination
NCSC coordinates with the Cabinet Office on national cybersecurity policy and crisis response frameworks.
→ Five Eyes Intelligence Oversight and Review Council organization
international_intelligence_alliance
NCSC participates in the Five Eyes intelligence-sharing alliance alongside intelligence agencies from US, Canada, Australia, and New Zealand.
→ US-UK Joint Contact Group institution
bilateral_cooperation
NCSC engages with US counterparts through the Joint Contact Group for cybersecurity cooperation between the UK and US.
→ National Security Agency (NSA) institution
international_partner
NCSC has close operational ties with the NSA for sharing threat intelligence and coordinating responses to cyber threats.
→ Intelligence and Security Committee of Parliament government agency
oversight
NCSC is subject to oversight by the Intelligence and Security Committee of Parliament, which reviews its activities.
Facts (1)
Data Freshness
Ageing Last update: 160d ago · Avg age: 250d
Confidence Tiers: Primary Source — cross-referenced government/corporate filings Pending Review — sourced but not independently verified AI Inference — analytical hypothesis from cross-referencing
Raw Filing Records (1) — unsourced metadata
Pending Review Search scope note: No usaspending contracts found for "UK National Cyber Security Centre" in automated database search as of 2026-04-13. This reflects search coverage limits, not confirmed absence from public record.
Added: 13 Apr 2026 UNVERIFIED Research: UK National Cyber Security Centre — USASpending contracts (no results)
All Connections (14)
cooperative_agreement confirmed
Party to March 2022 New Cooperative Agreement
→ UK Home Office institution
interagency_cooperation primary since 2016
UK National Cyber Security Centre operates under the purview of the UK Home Office, which oversees domestic security and cybersecurity policy.
→ NHS England institution
cybersecurity_support primary since 2017
NCSC provides cybersecurity guidance and support to NHS England, particularly during cyber incidents affecting healthcare systems.
→ UK Ministry of Defence institution
interagency_cooperation primary since 2016
NCSC collaborates with the Ministry of Defence on national cybersecurity strategy and defense against cyber threats.
→ Cabinet Office (UK) government agency
policy_coordination primary since 2016
NCSC coordinates with the Cabinet Office on national cybersecurity policy and crisis response frameworks.
international_intelligence_alliance primary since 2016
NCSC participates in the Five Eyes intelligence-sharing alliance alongside intelligence agencies from US, Canada, Australia, and New Zealand.
→ US-UK Joint Contact Group institution
bilateral_cooperation primary since 2016
NCSC engages with US counterparts through the Joint Contact Group for cybersecurity cooperation between the UK and US.
international_partner primary since 2016
NCSC has close operational ties with the NSA for sharing threat intelligence and coordinating responses to cyber threats.
→ UKUSA Agreement instrument
treaty_relationship primary since 1946
NCSC operates under the UKUSA Agreement, the foundational treaty for signals intelligence cooperation between UK and US.
oversight primary since 2016
NCSC is subject to oversight by the Intelligence and Security Committee of Parliament, which reviews its activities.
→ Palantir Technologies company
technology_partner secondary since 2018
NCSC utilizes Palantir's data analytics platforms for threat detection and cybersecurity operations, as documented in UK government procurement records.
→ NHS Digital institution
cybersecurity_partner primary since 2017
NCSC works with NHS Digital to secure health sector digital infrastructure against cyber attacks.
oversight primary since 2016
NCSC's investigatory powers are overseen by the Investigatory Powers Commissioner's Office for compliance with legal frameworks.
← Matthew Rycroft person
operational coordination inferential since 2022
Rycroft's Home Office worked with NCSC on securing digital border infrastructure and countering cyber threats to immigration systems.
Sources (5)
2026-05-10 UNVERIFIED SEARCH_ERROR: UK National Cyber Security Centre not found in opencorporates claim_flag Processed 📜 Receipt
2026 UNVERIFIED Research: UK National Cyber Security Centre — Parliamentary records (no results) parliamentary_record Processed 📜 Receipt
2026 UNVERIFIED Research: UK National Cyber Security Centre — Court records (no results) court_document Processed 📜 Receipt
2026 UNVERIFIED Research: UK National Cyber Security Centre — Lobbying disclosures (no results) government_disclosure Processed 📜 Receipt
2026 UNVERIFIED Research: UK National Cyber Security Centre — USASpending contracts (no results) contract Processed 📜 Receipt