WEBINAR
Learn how software development company Personio takes a strategic approach to pentesting.
WEBINAR
Learn how software development company Personio takes a strategic approach to pentesting.
COBALT CORE

Meet Your Elite, Vetted Pentester Community

Extend your team with offensive security expertise to uncover vulnerabilities and bolster your defenses against evolving threats.

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VETTING PROCESS

Premium penetration testing

Test with confidence. Our comprehensive vetting means you get proven experts focused on uncovering critical vulnerabilities, leading to a truly stronger security posture.

Forging The Cobalt Core

Cobalt Core pentesters are elite, vetted penetration testing experts. These seasoned professionals average 11 years of experience and hold top certifications like CISSP, OSCP, and CREST.

Stage 1
Sourcing and Initial Review
Candidates are often referred by existing Core members, customers, or employees; applications are reviewed for tenure, skill, and expertise.
Stage 2
Assessment
Promising candidates undergo rigorous online technical skills assessments to objectively measure expertise.
Stage 3
Interviews
Successful candidates have in-depth interviews with our Core team to further evaluate technical capabilities and professional fit.
Stage 4
Verification
Candidates undergo comprehensive third-party background checks. Tax documentation is confirmed, and NDAs and Terms of Engagement are signed.
Stage 1
Continuous Quality Assurance
All testing occurs over Cobalt's secure VPN. All work undergoes reviews by trusted leads and specialists, and pentesters receive ongoing performance reviews.
BENEFITS

The Cobalt Core Advantage: Your Pentest, Elevated

Deep & proven expertise

Access experts with 11+ yrs avg. experience, certified for web, API, cloud, and LLM testing to find more.

Advanced threat focus

Uncover novel, complex vulnerabilities that scanners miss, providing deeper assurance against sophisticated attacks.

Actionable results

Get clear, prioritized findings and communicate directly with testers for expert guidance on remediation.
Elite Expertise, Proven & Vetted
Deep experience and proven skills
Critical Vulnerabilities Found
Global scale, proven scale
Real-Time Pentest Collaboration
Elite Expertise, Proven & Vetted

Confidently engage elite, globally-sourced pentesters with proven skills and rigorous vetting. Our multi-stage vetting includes technical skill assessments, interviews, and comprehensive background checks to ensure quality and trustworthiness. This ensures your assets are tested by deeply knowledgeable professionals delivering reliable results.

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Deep experience and proven skills

Apply deep, specialized expertise across your attack surface on demand, for breadth and depth of testing that might otherwise require significant investment or multiple niche consultancies.

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Critical Vulnerabilities Found

Our Core pentesters excel at finding critical, high-impact flaws that truly matter, not just surface-level noise. With a track record of identifying over 10,000 serious vulnerabilities, we help your organization prioritize and remediate risks effectively. This focused approach materially reduces the likelihood of damaging breaches by highlighting exploitable issues that could be missed by scanners or less experienced testers.

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Global scale, proven scale

With over 5000 pentests conducted annually, our experience ensures we can scale your security testing capacity worldwide, leveraging diverse, specialized skills for any project size or complexity. We provide the right team with the specific expertise needed for your unique requirements, overcoming resource constraints and ensuring comprehensive coverage wherever your assets reside. 

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Real-Time Pentest Collaboration
Experience seamless communication with pentesters via modern collaboration tools, including ChatOps platforms. Get rapid, detailed responses to your queries, discuss findings in real-time, and receive expert guidance directly. This accelerates your team's ability to understand, validate, and remediate vulnerabilities, enhancing overall pentest efficiency and making results more actionable for your team.
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Chris Wallace,
Principal Cybersecurity Architect at Vonage

“I was really impressed with how responsive pentesters are, not just in how quickly they go. They get back to us pretty quickly, and the answers we get are full, complete, and detailed. When we're questioning them about something, we get what we're looking for and the information we need to take that data and then operationalize it on our side.”

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Adam Davis,
Director of Application Security at Insurity

“Cobalt’s pentesters give us specialized talent, delivering exceptional value compared to maintaining the same talent in-house. And we don’t just get one person, we get a team. We’re ecstatic that we can have these highly talented pentesters with diverse skills and perspectives working on our applications.”

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Director of Cloud Security at Healthtech

“It’s easy to saturate pentest reports with tons of findings, so one thing I appreciate about Cobalt is quality. Our other security tools could overlap pentest findings, but Cobalt’s expert pentesters discover the most critical, exploitable issues.”

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Learn how attackers look at your application


Ethical hacking is when an individual looks for vulnerabilities within a network or application so they can help prevent malicious attacks.

Find out how Cobalt Core pentesters improve your security by diving into the mind of an ethical hacker and learning how your company can get ahead of threats.

Core Certifications
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OSWE-certification
Crest logo 2022
CRTO-certification
CRTM-certification
Cobalt-Our Pentesters-Stefan Nicula
Stefan Nicula
Certifications & Skills

Masters in IT&C Security, PhD in Information Security. Focus on reverse engineering, exploit development, and fuzzing on Windows.

Cobalt-Our Pentesters-Andreea Cristina
Andreea Cristina
Certifications & Skills

OSCP, OSCE, OSWP, ITILv3, ENG 812: Security Code Review

Saad Nasir
Saad Nasir
Certifications & Skills
OSCP,  PNPT,  CEH,  eJPT,  CySA+,  AWS-SSA, Red Teaming, Web Application, Cloud Security, Mobile Pentest, API Testing
Apoorva
Apoorva Jois
Certifications & Skills
OSCP, paCSP, CRTP, CEH, API, Web, Network, Cloud Pentesting
Antonio-catalan-fuentes
Antonio Catalan Fuentes
Certifications & Skills

ICT engineering degree and OSCP, CEH, OSWE

Arben-Shala
Arben Shala
Certifications & Skills

OSCP, BSCP, CARTP, CREST

Alexis 270
Alexis Fernández
Certifications & Skills
OSCP, Recon, Web, Infrastructure, Network
Goonjeta
Goonjeta Malhotra
Certifications & Skills
OSCP, Web, External Network, Internal Network, Web3, Code Reviews
Cobalt-Our Pentesters-Valerio Brussani
Valerio Brussani
Certifications & Skills

OSCP, OSWE, eMAPT, XRY, CyberArk CDE, Tenable TCSCE, Tenable TCNE, Tenable TCSA

Cobalt-Our Pentesters-Harsh Bothra
Harsh Bothra
Certifications & Skills

eCPPTv2, eWPTXv2, CEHv10

Sunil Kande
Sunil Kande
Certifications & Skills
Web Application, SecurityiOS Application Security, CEH
Farid Luhar
Farid Luhar
certifications & skills

Web Application, Infrastructure, Mobile Application, IoT Penetration Testing, Source Code Review, OSCP, OSWE, CREST CPSA, CREST, CRT

Cobalt-Our Pentesters-Nikhil K Srivastava
Nikhil K Srivastava
Certifications & Skills

CREST, CEH, ECSA, LPT (Licensed Pentester)

Cobalt-Our Pentesters-Alex Moraga
Alex Moraga
Certifications & Skills

Vulnerability Researcher, Web Applications, Mobile App, iOS, Android, Networking, & OSCP

Cobalt-Our Pentesters-Jesus Espinoza
Jesus Espinoza
Certifications & Skills

OSCP, OSWP, OSCE, OSWE, GWAPT, GPEN, GXPN, ATRTO

Cobalt-Our Pentesters-Juan Pablo Ruffino
Juan Pablo Ruffino
Certifications & Skills

Web, API Security, CEH, & CPHE

Thrivikram
Thrivikram Gujarathi
certifications & skills
Web Application, API PenTesting, Secure Code Review, Devsecops, Thick client, External Network, Threat Modeling, CEH, CDP, AZ-900
Cobalt-Our Pentesters-Aditya Agrawal
Aditya Agrawal
Certifications & Skills

Web, Mobile Applications, OSINT, External Network Pentest

Cobalt-Our Pentesters-Çlirim Emini
Çlirim Emini
Certifications & Skills

API, Web Application Security, & OSCP

Cobalt-Our Pentesters-Manish Rohilla
Manish Rohilla
Certifications & Skills

Web Application Security, Network Security Assessment, OSINT, OSCP, CEH, CHFI, AWS Security Certified

Cobalt-Our Pentesters-Nikhil Aswani
Nikhil Aswani
Certifications & Skills

OSCP, CRTE, CREST

Cobalt-Our Pentesters-Eduardo Zamorano
Eduardo Zamorano
Certifications & Skills

Red & Blue team, Bug Hunter, CTF player, PPT, FSWA

Cobalt-Our Pentesters-Michal Brzezicki
Michal Brzezicki
Certifications & Skills

OSCP, eMAPT, C)PEH, ISO/IEC 27001 Lead Auditor, CBSP

GET STARTED

Ready to test your defenses?

Empower your security and development teams with Cobalt’s unique combination of a modern SaaS platform and our community of vetted security experts. Trust the pioneers of PTaaS as your offensive security testing partner across your entire attack surface.

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