Many critical systems written in C++ lack modern security protections, but upgrading them requires specialized expertise.
Offer code audits, remediation plans, and team training focused on implementing memory safety and other hardening techniques from newer C++ standards.
Target industries with legacy C++ codebases like finance, embedded systems, and game development. Charge project-based or retainer fees.
Start by documenting common vulnerabilities and remediation patterns as lead generation, then offer hands-on help.
Risk: Requires deep, current C++ expertise that's hard to find and expensive to maintain.