| Aspect | On Call Cybersecurity Researcher | Penetration Tester |
|---|
| Credentials | Typically requires certifications like CISSP, OSCP, or CEH | Often holds CEH, OSCP, or GPEN certifications |
| Work Environment | Provides on-demand security research and incident support, often remotely | Conducts simulated attacks in controlled environments, often on-site or remote |
| Employer & Industry Usage | Used by cybersecurity firms, tech companies, and agencies for ongoing threat analysis | Hired by security firms or organizations for penetration testing projects |
The On Call Cybersecurity Researcher focuses on ongoing threat research and incident response, providing immediate support when security issues arise. In contrast, a Penetration Tester conducts planned security assessments to identify vulnerabilities. Both roles require similar certifications and may work in similar environments, but their primary functions differ in scope and purpose.