Our Security Experts
Meet the Team Behind Chain Defenders

0x539.eth
Co-founder & Security Researcher
Web3 security sleuth who thrives on outsmarting blackhat hackers, armed with a knack for spotting critical bugs and a belief that competition among auditors is the secret sauce to a safer decentralized world.
Our Process
Precision in Every Step
Discovery
We analyze your project requirements and scope.
Audit
Thorough security assessment of your smart contracts.
Report
Detailed findings and recommendations delivered.
Support
Post-audit assistance and verification.
Trusted By
Industry Leaders Partner With Us



Client Success Stories
What Our Clients Say

@Zak3939.eth
Phi
“Having seen their excellent track record on Code4rena, I engaged their audit service and they delivered exactly as expected. The team provided swift responses with clear findings, demonstrating both technical expertise and professional communication through efficient yet thorough analysis. Their excellent balance of quality and speed makes them particularly recommendable for teams seeking rapid turnaround without compromising on audit quality.”

@0xpedro_eth
Zaros
“This is probably one of the best findings on this competition that we got till now. Their attention to detail and deep understanding of smart contract vulnerabilities really shone through, helping us secure our platform effectively.”

@agfviggiano
Size Credit
“Our experience with ChainDefenders was smooth from start to finish. They provided a good service, delivering a comprehensive review and valuable recommendations in a timely manner. Their communication style and collaborative approach was very effective. We appreciated their attention to detail and would do business again.”

@0xmalcolmm
The Blackhole Experiment
“Working with ChainDefenders was a fantastic experience. They were extremely thorough and delivered an amazing audit on a strict time schedule. They helped us better understand our contracts and the implications of each function. I'll definitely be coming back to them in the future.”

@alexroan
Cyfrin
“Very readable and clear findings were provided. Some were duplicated but useful nonetheless. Thank you.”

@Zak3939.eth
Phi
“Having seen their excellent track record on Code4rena, I engaged their audit service and they delivered exactly as expected. The team provided swift responses with clear findings, demonstrating both technical expertise and professional communication through efficient yet thorough analysis. Their excellent balance of quality and speed makes them particularly recommendable for teams seeking rapid turnaround without compromising on audit quality.”

@0xpedro_eth
Zaros
“This is probably one of the best findings on this competition that we got till now. Their attention to detail and deep understanding of smart contract vulnerabilities really shone through, helping us secure our platform effectively.”

@agfviggiano
Size Credit
“Our experience with ChainDefenders was smooth from start to finish. They provided a good service, delivering a comprehensive review and valuable recommendations in a timely manner. Their communication style and collaborative approach was very effective. We appreciated their attention to detail and would do business again.”

@0xmalcolmm
The Blackhole Experiment
“Working with ChainDefenders was a fantastic experience. They were extremely thorough and delivered an amazing audit on a strict time schedule. They helped us better understand our contracts and the implications of each function. I'll definitely be coming back to them in the future.”

@alexroan
Cyfrin
“Very readable and clear findings were provided. Some were duplicated but useful nonetheless. Thank you.”

@Zak3939.eth
Phi
“Having seen their excellent track record on Code4rena, I engaged their audit service and they delivered exactly as expected. The team provided swift responses with clear findings, demonstrating both technical expertise and professional communication through efficient yet thorough analysis. Their excellent balance of quality and speed makes them particularly recommendable for teams seeking rapid turnaround without compromising on audit quality.”

@0xpedro_eth
Zaros
“This is probably one of the best findings on this competition that we got till now. Their attention to detail and deep understanding of smart contract vulnerabilities really shone through, helping us secure our platform effectively.”

@agfviggiano
Size Credit
“Our experience with ChainDefenders was smooth from start to finish. They provided a good service, delivering a comprehensive review and valuable recommendations in a timely manner. Their communication style and collaborative approach was very effective. We appreciated their attention to detail and would do business again.”

@0xmalcolmm
The Blackhole Experiment
“Working with ChainDefenders was a fantastic experience. They were extremely thorough and delivered an amazing audit on a strict time schedule. They helped us better understand our contracts and the implications of each function. I'll definitely be coming back to them in the future.”

@alexroan
Cyfrin
“Very readable and clear findings were provided. Some were duplicated but useful nonetheless. Thank you.”
Our Security Badge
Certified Protection for Your Project

"Protected By Chain Defenders"
After completing a rigorous audit, your project earns this badge - a symbol of security and trust. Display it proudly to show your users that your smart contracts are safeguarded by industry-leading experts.