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Security Guides

Vendor review checklist: data residency and transfer questions to ask

A buyer's checklist of ten residency and transfer questions for any SaaS vendor, with what a good answer looks like and which answers should worry you.

Oct 18, 20263 min read
Security Guides

What should you do if your security tool vendor is acquired or sunsetting?

Read your contract, get roadmap and support commitments in writing, export your data now and set review triggers before deciding to stay or move.

Oct 18, 20263 min read
Security Guides

Userns remap or rootless Docker: which should you use?

Both map container root to an unprivileged host user. Rootless also runs the daemon without root. Compare the two and pick by workload.

Oct 18, 20264 min read
Security Guides

How do KEV and EPSS help rank findings across many services?

KEV says exploited now, EPSS estimates likelihood in the next 30 days. How to combine both with severity and exposure to rank findings across a fleet.

Oct 18, 20263 min read
Security Guides

Can you use the CISA KEV catalog as a trigger for an urgent rescan?

Yes. Poll the KEV JSON file, diff it against your last copy, and rescan inventories that contain a newly listed CVE. Steps and limits to plan for.

Oct 18, 20263 min read
Security Guides

How do you upgrade Jenkins to a new LTS without breaking builds?

Upgrade Jenkins LTS in order: back up, read each upgrade guide, test on a copy, update Java and plugins, then cut over. Steps for legacy controllers.

Oct 18, 20263 min read
Security Guides

How do you update a threat model after a security incident?

After an incident, ask what the threat model missed, add the path, fix the gaps in the diagram and turn lessons into tests. A short blameless checklist.

Oct 18, 20263 min read
Security Guides

Auto-update threats: freeze, rollback and signing key theft

An updater can be attacked by hiding updates, serving old versions or abusing a stolen key. See what each threat looks like and how to design against it.

Oct 18, 20263 min read
Security Guides

Stable, beta and nightly update channels: security tradeoffs

Update channels trade speed of fixes against regression risk. How to design stable, beta and nightly rings, who belongs on each, and how to protect them.

Oct 18, 20263 min read

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