Non-intrusive security assessments that identify vulnerabilities in your web applications — without touching production systems. A full audit, zero risk.
A passive audit analyzes your web application the way an attacker would — by observing, not by attacking. We examine headers, cookies, response patterns, third-party dependencies, and publicly exposed configuration. No scans. No probes. No risk of taking anything offline.
CSP, HSTS, X-Frame-Options, Referrer-Policy, Permissions-Policy. Missing headers are the easiest thing to fix and the most commonly exploited.
Cipher suites, protocol versions, certificate chain validity, expiration windows. We catch weak TLS configs before they become incidents.
HttpOnly, Secure, SameSite flags. Session token entropy. Cookie scoping. Misconfigured cookies are the silent enabler of account takeover.
Client-side JavaScript audit. Outdated libraries, known CVEs in your frontend stack, third-party scripts with excessive permissions.
Server signatures, debug endpoints, error messages leaking stack traces, API version headers, admin panel discovery. What your app tells the world about itself.
Cross-origin policies, Content Security Policy gaps, overly permissive access controls. We catch the configuration mistakes that enable XSS and data exfiltration.
| Active Penetration Test | Passive Security Audit | |
|---|---|---|
| Risk to production | Moderate — probes, scans, payloads | Zero — observation only |
| Requires permission | Written authorization, maintenance window | None — public data only |
| Speed | Days to weeks | 24–48 hours |
| Cost | $5,000–$50,000+ | Fraction of that |
| Frequency | Annual / semi-annual | Monthly / on every deploy |
| Finds | Deep application logic bugs | Configuration gaps, hygiene issues, exposed attack surface |
| Best for | Compliance, high-risk apps | Continuous monitoring, baseline hardening |
| Severity | Finding | Remediation |
|---|---|---|
| CRITICAL | CSP header missing — XSS protection absent | Add Content-Security-Policy with strict-dynamic |
| HIGH | Cookies missing Secure flag — transmitted over HTTP | Set Secure;HttpOnly;SameSite=Lax on all auth cookies |
| HIGH | TLS 1.1 still enabled — vulnerable to POODLE | Disable TLS 1.0/1.1; enforce TLS 1.2+ |
| MEDIUM | HSTS max-age below 6 months — insufficient pinning | Set Strict-Transport-Security: max-age=31536000; includeSubDomains |
| MEDIUM | Server header reveals nginx/1.24.0 — version disclosure | Set server_tokens off; or strip via reverse proxy |
| LOW | Referrer-Policy not set — referrer leakage possible | Add Referrer-Policy: strict-origin-when-cross-origin |
| INFO | jQuery 3.6.0 detected — 2 minor CVEs since release | Upgrade to latest 3.x or migrate to vanilla |
We agree on the target domains and audit depth. Single app or entire portfolio — same process.
→Passive analysis of headers, TLS, cookies, JS bundles, API responses. No requests beyond what a browser makes.
→Prioritized findings with severity ratings, plain-English explanations, and step-by-step remediation instructions.
→After you fix, we re-audit to confirm closure. Included in every engagement — not an upsell.
Passive observation only. No scans, no probes, no payloads. Your app operates exactly as it was — we just look at what's publicly visible.
Critical → High → Medium → Low → Info. We tell you what to fix today versus what can wait until next sprint.
Not just "fix X." We include exact config snippets, nginx directives, Cloudflare rules, and code changes for each finding.
One-page overview for stakeholders who don't read config files. Risk score, trend line, and top 3 actions.
After remediation, we run the same audit again at no extra cost. You get a "before and after" comparison showing improvement.
Monthly passive audits. Catch regressions immediately. Ideal for teams that deploy frequently and want continuous hardening.