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Security Guides

An advisory lists several patched versions. Which one do I choose?

Pick the patched version on the same release line you run, unless you plan a larger upgrade. Here is how to read multiple fixed versions in one advisory.

Oct 19, 20264 min read
Security Guides

How do you let an emergency deploy past admission control safely?

Build a break-glass path into your image admission policy instead of turning the webhook off. Kubernetes supports a permission-based bypass you can audit.

Oct 19, 20263 min read
Security Guides

How do you decide which findings only one scanner reports?

Findings reported by one scanner and not the other need a verdict. Use a four question adjudication sheet so the call is repeatable, not a vote.

Oct 19, 20264 min read
Security Guides

How do you add a SaaS sender to your domain without breaking DMARC?

A safe sequence for letting a help desk, CRM or email API send as your domain: pick a subdomain, publish DKIM, scope SPF, test, then watch reports.

Oct 19, 20264 min read
Security Guides

Acknowledge in 3 days, assess in 7, resolve in 90: do vendors need that?

CISA's 3, 7 and 90 day targets are guidance for agencies, not vendor rules. How to adapt them into internal service targets for inbound reports.

Oct 19, 20264 min read
Security Guides

What should you check on your accounts and devices after a trip?

A return from travel checklist for developers: review signed in devices, sessions, keys and tokens, update software, and rotate anything you exposed.

Oct 19, 20264 min read
Security Guides

What access control questions should you ask a security tool vendor?

Role-based access, single sign-on, audit logs and offboarding: eight access control questions for any security tool, with the FERPA access rule as context.

Oct 19, 20264 min read
Security Guides

Abuse case, misuse case or negative test: what is the difference?

An abuse case describes how a feature could be turned against its purpose. A negative test checks one bad input. Here is how QA and security use each.

Oct 19, 20264 min read
Security Guides

A zero day hits a component in your device fleet: what is the first day?

A first day plan for a newly disclosed flaw in a component your devices ship: scope, mitigate, decide exposure, communicate, then stage the fix safely.

Oct 19, 20264 min read

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