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Check your cyber security - NCSC.GOV.UK vs Intruder

Check your cyber security - NCSC.GOV.UK lands on Depends, and Intruder lands on Worth it.

Intruder

intruder.io

Worth it
Confidence: Medium

Buy if you're a lean security team or SMB that wants continuous cloud vulnerability scanning without paying for manual pentests.

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Check your cyber security - NCSC.GOV.UK versus Intruder
CompareCheck your cyber security - NCSC.GOV.UKIntruder
VerdictDependsWorth it
Best forUK small businessesLean security teams
Who it's not forLarge enterprises needing real penetration testingBig orgs wanting Rapid7-style full platform breadth
PrivacyNo known public vulnerabilities found in the sources reviewed.⁴No known public vulnerabilities found in the sources reviewed.
Support qualityNo evidence of support channelsNo support evidence in sources
Public sentimentNo direct user reviews found; the service is recommended by accountancy bodies, charities, and insurers rather than rated by users.¹G2 reviewers single out ease of use as Intruder's top strength across 220 reviews and recent best-software awards.14
Biggest gotchaDon't build ongoing monitoring on it . Web Check and Mail Check retire March 2026.²Billing basis (per-asset vs per-target) isn't clear . confirm before committing.

Pick Check your cyber security - NCSC.GOV.UK when

  • UK small businesses
  • Charities and community organisations
  • One-off posture checks
  • Non-technical owners

When Check your cyber security - NCSC.GOV.UK is not a fit

  • Large enterprises needing real penetration testing
  • Anyone wanting ongoing monitoring beyond March 2026
  • Non-UK organisations
  • Teams needing vendor support or SLAs

Pick Intruder when

  • Lean security teams
  • SMBs needing continuous vulnerability scanning
  • Teams replacing one-off or $50k manual pentests
  • Guess: startups chasing SOC 2 / ISO 27001 compliance

When Intruder is not a fit

  • Big orgs wanting Rapid7-style full platform breadth
  • Teams needing deep manual VAPT beyond automated scanning
  • One-time scan buyers . this is a subscription product
  • Guess: anyone who only needs a free port scan

Sources

  1. Check your cybersecurity - ACCAaccaglobal.com
    review
  2. NCSC Web Check is Retiring - Intruderintruder.io
    news
  3. NCSC to retire WebCheck and EmailCheck - AutoSPFautospf.com
    news
  4. The UK government is scanning all of the country's internet connections - TechRadartechradar.com
    security
  5. NCSC scanning Internet devices hosted in the UK - Future Processingfuture-processing.com
    security
  6. NCSC CHECK IT Health Check and Penetration Testing - G-Cloudapplytosupply.digitalmarketplace.service.gov.uk
    official
  7. NCSC Cyber Security Consultancy - G-Cloudapplytosupply.digitalmarketplace.service.gov.uk
    official
  8. CTS Cyber-attack resources - Miller Insurancemiller-insurance.com
    news
  9. On-demand webinar: How to protect your charity online - Charity Digitalcharitydigital.org.uk
    news
  10. NCSC Cyber Action Toolkit - Small Business Commissionersmallbusinesscommissioner.gov.uk
    official
  11. PCC Secretaries - Church of England Guildfordcofeguildford.org.uk
    news
  12. Intruder Reviews 2026 . G2g2.com
    review
  13. Intruder Products . 220 G2 Reviewsg2.com
    review
  14. Intruder Pros and Cons . G2g2.com
    review
  15. Intruder Reviews . Gartner Peer Insightsgartner.com
    review
  16. Intruder | Stop Breaches Before They Startintruder.io
    official