Trusted by Fortune 500 Companies and Governments

Professional Pentesting & API Testing
Services

Expert pentesters providing comprehensive penetration testing, API security testing, and vulnerability assessments. We've secured systems for numerous Fortune 500 companies and government agencies. Professional pentesting services you can trust.

Cyber Attacks Are Not a Matter of If, But When

Every 39 seconds, a cyber attack occurs. The question isn't whether your business will be targeted. It's whether you'll be prepared when it happens. Professional pentesting and API testing can help identify vulnerabilities before attackers exploit them.

$4.4M
Average cost of a data breach in 2025
277
Days average time to identify a breach
60%
Of small businesses close within 6 months of attack

Financial Devastation

Beyond ransom payments, breaches trigger regulatory fines, legal fees, and lost revenue that can cripple even established companies.

Reputation Damage

Customer trust takes years to build and seconds to destroy. A single breach can permanently tarnish your brand's reputation.

Compliance Failures

GDPR, HIPAA, PCI-DSS violations can result in penalties up to 4% of annual revenue and mandatory breach notifications.

Expert Pentesting & API Testing Services

Professional pentesters providing comprehensive penetration testing and API security testing. Our expert pentesters manually test your defenses using the same techniques real attackers use.

Professional Pentesting & API Testing

Expert pentesters providing comprehensive penetration testing and API security testing. Our professional pentesting services uncover vulnerabilities in your networks, applications, APIs, and cloud infrastructure.

  • Professional API testing and web application pentesting
  • Network pentesting and cloud security testing
  • Expert pentester guidance with detailed remediation steps
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AI & LLM Security Testing

Specialized assessments for AI systems, ensuring your machine learning models and LLM integrations are secure.

  • Prompt injection and jailbreak testing
  • Data leakage and model abuse assessments
  • Secure AI implementation guidance
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Security Consulting

Strategic guidance to build and mature your security program, aligned with your business objectives.

  • Security architecture and program design
  • Risk assessments and compliance roadmaps
  • Customized security strategies for your industry
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Battle-Tested Expertise You Can Trust

We're not just consultants with certifications. We're offensive security operators who've discovered critical vulnerabilities in some of the world's largest companies.

Proven Track Record

Critical vulnerabilities identified for Amazon, Netflix, T-Mobile, NASA, and Epic Games. View our profiles on Bugcrowd and HackerOne.

10+ Years Experience

Deep expertise in pentesting, API testing, and offensive security operations.

Personal Attention

Work directly with senior experts.

Actionable Reports

Clear, prioritized findings your team can actually understand and fix.

Rene Alova - Expert Pentester and Founder of Charlie Defense

Rene Alova

Founder & CEO

10+
Years Experience
100s
Vulnerabilities Found
Critical Vulnerabilities Identified For
Amazon Netflix T-Mobile NASA Epic Games

Ready to Secure Your Business?

Schedule a free consultation to discuss your security needs.