B2B infrastructure security

Infrastructure security
that holds under pressure.

We work with engineering teams and IT operations to harden networks, audit code pipelines, investigate incidents, and build security processes that survive contact with reality. No frameworks sold as strategy, no checkbox compliance.

Get in touch
sample finding summary SI-2026-0147
CRIT IAM wildcard policy on prod (via Terraform state)
HIGH Redis reachable from DMZ, no auth
HIGH JWT HS256 secret cracked in 4 seconds
MED CVE-2022-0847 unpatched on 3 hosts (Dirty Pipe)
LOW Rotated API key still valid in git history
1 critical 2 high 1 medium 1 low
illustrative — not an actual client report
What we do

Services

net.harden
Network Security
Firewall policy, segmentation, VPN architecture, and network detection rules built for your actual topology.
nmap -sV --script vulners target
infra.cis
Infrastructure Hardening
OS and cloud configuration hardening against CIS benchmarks, with drift detection and remediation guides.
ansible-playbook cis-benchmark.yml
code.pipeline
SDLC Security
Threat modeling, secure code review, and CI/CD pipeline hardening — integrated into your existing workflow.
semgrep --config=p/security-audit src/
edr.fleet
Endpoint Protection
EDR deployment, policy tuning, and fleet-wide visibility across cloud, on-prem, and mixed environments.
osquery "SELECT * FROM listening_ports"
ir.forensics
Incident Response & Forensics
Post-incident investigation, timeline reconstruction, artifact analysis, and actionable remediation reports.
volatility -f mem.dmp windows.pslist
siem.detect
Log Collection & Analysis
Log pipeline design, SIEM tuning, and custom detection rules mapped to your environment's real threat model.
sigma convert -t splunk rule.yml
ai.threat
AI Security
LLM threat modeling, prompt injection testing, model access control design, and AI supply chain review.
garak --model openai:gpt-4 --probes injection
ops.runbook
Security Processes & Tooling
Runbooks, playbooks, incident classification, and tool selection — built to be used, not filed away.
grep -E "CRIT|ALERT" /var/log/syslog
How we work

Approach

01 Observe configs · logs · tooling direct observation 02 Test & verify find · reproduce · fix fix confirmed first 03 Deliver report · runbook · action
findings ship only after a working fix is confirmed in a test environment
01
We read the config, not just the report.

Every engagement starts with the actual state of your environment, not a questionnaire. We look at running configs, real logs, and deployed tooling before forming any opinion.

02
Findings come with working fixes.

Recommendations are tested before they're delivered. If we can't reproduce the fix in a staging environment, we don't ship the finding. No theoretical mitigations.

03
We write for your team, not for auditors.

Documentation is actionable: runbooks your on-call engineer can follow at 3am, not 80-page PDFs with a 10-page executive summary.

Knowledge base

Recent articles

All articles →
Linux
Hardening SSH: beyond PasswordAuthentication no
Nov 7, 2026 · 15 min
SIEM
Detection engineering with Sigma rules: a practical guide
Oct 29, 2026 · 20 min
AI Security
LLM prompt injection: threat model for enterprise deployments
Oct 14, 2026 · 12 min
Get in touch

Tell us what you're dealing with.

We'll respond within one business day. If it's an active incident, say so — we prioritize those.

Or email directly: hello@secureinfra.org