Free Security Assessment

Find & fix your legacy estate's vulnerabilities before AI scanners exploit them.

Legacyleap maps your legacy estate, surfaces unresolvable CVEs, and separates compliance risk from security risk. Entirely inside your infrastructure, in 3 to 5 days.

150+ assessments completed No source code leaves your environment

Get a Free Security Posture Assessment

Get your findings in 3 to 5 days.

No source code leaves your environment.

3–5 days to receive full findings

150+ production-grade assessments completed

0 lines of code leave your infrastructure

50% lower cost than a manual remediation estimate

The Threat

Why your legacy estate needs a security review right now.

AI can now find unknown vulnerabilities in production code faster and cheaper than any human team. Anthropic's Claude Mythos found a 27-year-old undiscovered flaw in OpenBSD, one of the most secure codebases in existence, for under $20,000.

Legacy systems built in the 1990s and early 2000s were never designed for AI that needs no documentation, no context, and no prior knowledge to find what is exploitable. The complexity that once made them costly to attack no longer matters. If you cannot describe what is inside a system, you cannot defend it.

Assessment Deliverables

A comprehensive, 360-degree audit
for every legacy codebase in your estate.

Security findings inventory by file, type and severity

Security Debt Inventory

Per-finding fix approach: what was found and what was done

Fix approach per finding

Key security findings ranked by severity

Proof-of-approach

Modernization Opportunity Map

Go-forward recommendation

Post-modernization before-and-after comparison

Post-Modernization Security Validation

Covers

VB6 .NET Framework AngularJS 1.x Delphi Struts SSIS Older Java estates + Additional on request

Case Study

How a North American airline got
audit-ready in 8 weeks when a
compliance deadline forced the issue.

Before

2,588

COM component references

195

Win32 API calls across 8 libraries

database integrations, unmapped

lines of documentation

automated tests

The Situation

A compliance-critical VB6 application tracking extended-range flight operations had been audit-flagged with a hard remediation deadline. No documentation, no tests, a dependency surface nobody on the current team could fully account for.

What Modernization Delivered

Legacyleap mapped the system, rebuilt it as a modern React and .NET Core application, and delivered it audit-ready in eight weeks at half the cost of a manual rewrite. Documentation and test coverage that had never existed for this system were created as part of the work.

The Security Implication

A system that nobody could fully describe is a system nobody can defend. The regulatory audit forced this organization to act. The assessment exists so you know what you are carrying before something else forces the issue.

After

8 wks

to full modernization

50%

lower cost vs. manual rewrite

65%

of code conversion automated

Full

automated test suite, from zero

Get Started

Book a security assessment of your legacy estate.

The longer your legacy estate goes unreviewed, the larger the window. Book now and have findings in 3 to 5 days.

Delivered in 3 to 5 days

No source code leaves your environment

150+ production-grade assessments completed

Runs entirely inside your firewall

Book a Security Assessment

Findings delivered in 3 to 5 days. No source code leaves your environment.

FAQ

What leaders ask before booking.

A security assessment maps the vulnerabilities, CVEs, patch gaps, and compliance risks inside your legacy codebase. It tells you exactly what is exposed before a breach or audit forces the issue.

Yes. It is currently offered at no cost as a fixed-scope engagement so you can see exactly how we work before committing to anything.

Your security audit or pen-test report, SAST/DAST/SCA scanner exports from tools like Snyk or SonarQube, and access to the application source code within your environment. Everything runs inside your infrastructure. Nothing leaves your environment.

Findings are delivered in 3 to 5 days. We scope the engagement, run the analysis entirely inside your infrastructure, and walk you through the findings and a recommended remediation path.

You own the findings with no obligation to continue. If you decide to act, we scope and execute the full modernization, from remediation through to a production-ready, fully modernized application.