Security Guides
Why an LLM API key never belongs in a mobile or browser app
Anything shipped to a phone or browser can be extracted. Here is why LLM API keys must stay on your server and what to build in their place.
Oct 18, 20264 min read
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Supply Chain Security, in plain English.
Deep dives, practical guides, and incident analyses from engineers who build Safeguard. No fluff, no vendor FUD — just what you need to ship secure software.
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llama.cpp server flags that change your attack surface
The llama.cpp server README documents host, API key, CORS, tool and MCP options. Which ones widen exposure and which ones tighten it before you share it.
Oct 18, 20263 min read
Security Guides
Living off the land: a hunting checklist for small teams
Attackers who use built-in tools leave no malware to find. A short checklist, drawn from the CISA Volt Typhoon advisory, for spotting that activity.
Oct 18, 20263 min read
Security Guides
Little's law for vulnerability backlogs: backlog size and fix time
Little's law links open vulnerabilities, arrival rate and time to fix. Use it to sanity check a backlog and to see which lever actually shrinks it.
Oct 18, 20263 min read
Security Guides
How a linux-distros embargo works for open source vulnerabilities
The linux-distros list lets reporters warn distributions privately before disclosure. The 14 day cap, what to send and what happens after, explained.
Oct 18, 20263 min read
Security Guides
Linux auditd basics: what it records and where to start
auditd is the Linux audit daemon that writes kernel audit events to disk. Learn its parts, how rules load, and a sensible first scope for servers.
Oct 18, 20263 min read
Security Guides
LINDDUN explained: threat modeling for privacy, not just security
LINDDUN is a privacy threat modeling method covering linking, identifying, detecting and more. What the letters mean and when to use it beside STRIDE.
Oct 18, 20263 min read
Security Guides
How to limit the blast radius of automated security fixes
Practical limits for automated fix PRs: caps on open PRs, grouping, cooldowns, repository scope and a kill switch, with Dependabot as an example.
Oct 18, 20263 min read
Security Guides
Least privilege in practice: what it looks like day to day
Least privilege means each person and process gets only the access needed for the task. Here are the concrete habits that turn the principle into practice.
Oct 18, 20263 min read
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