Practical penetration testing research.
CVE walkthroughs, attack-chain breakdowns and UK compliance guides from the EJN Labs team. Long-form, technical, free.
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BLOGMicrosoft 365 App Certification: The Annual Penetration Test Requirement Explained
7 MIN ·Microsoft 365 App Certification requires an annual, independent penetration test. UK scope, process and cost,…
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The Best Penetration Testing Companies for UK Adtech and Martech (2026)
9 MIN ·The best penetration testing companies for UK adtech and martech in 2026 are listed below.…
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Penetration Testing Cost for UK Adtech and Martech Platforms (2026)
8 MIN ·A penetration test for a UK adtech or martech platform typically costs £3,300 to £36,400…
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Who Asks an Adtech or Martech Platform for a Penetration Test, and What Do They Ask For?
9 MIN ·No rule names a penetration test for an adtech or martech platform. The ask comes…
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The Best Internal Network Penetration Testing Companies in the UK (2026)
10 MIN ·The best internal network penetration testing companies in the UK for 2026 are listed below.…
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The Best External Penetration Testing Companies in the UK (2026)
9 MIN ·The best external penetration testing companies in the UK for 2026 are listed below. Each…
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The Best Penetration Testing Companies for UK Insurance Firms (2026)
8 MIN ·The best penetration testing companies for UK insurance firms in 2026 are listed below. Each…
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Penetration Testing Cost for UK Insurers, Brokers and MGAs (2026)
7 MIN ·A penetration test for a UK insurer, broker or MGA typically costs £4,400 to £47,600…
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FCA, PRA and Lloyd’s: Do Insurers Need a Penetration Test?
10 MIN ·No rule from the FCA, the PRA or Lloyd’s tells an insurer, broker or MGA…
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The Best Cloud Penetration Testing Companies in the UK (2026)
10 MIN ·The best cloud penetration testing companies in the UK for 2026 are listed below. Each…
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