The Umbra Field Manual
Useful thinking for people who ship.
Clear, practitioner-led guides on cybersecurity, software and automation. Written to help you make a good decision. Never to fill a content calendar.
Hero photographA security specialist working with a product team.
Natural light, candid moment, premium editorial treatment.
Penetration Testing in the UK: Buy the Right Test, Not Just the Report
What to put in scope, what a credible UK test costs and how to recognise a report your engineers can actually use.
Read the field guide →