Goes straight to 0xSimao. No form, no intake queue.
85private audits led
$13.8BTVL protected
21first places
53solo findings
$602Kin contest prizes
Featured Feedback
I've had the pleasure to work with Simao over the last few years where he has completed numerous audits for Maple Finance. Each time he's been thorough, finding niche issues missed in prior audits and helping us improve the design and security of the system. I would highly recommend him to audit any protocol.
Sherlock's award for the researcher with the greatest impact on the platform in 2025. Read Sherlock's announcement
04
Founding member of Blackthorn
One of the founding members of Blackthorn, an audit firm formed from established Web3 security professionals.
05
Former Head of Security, Three Sigma
Ran the security department and led more than 30 audits.
06
Top-ranked on Code4rena
Placed in the top 3 over a 90-day period on Code4rena.
07
Top-ranked on Cantina
Top-3 finishes across 3 Cantina competitions. Profile
08
53 solo findings
Vulnerabilities no other researcher submitted, including in competitions with 600+ participants.
Audit Process
Fast, transparent and effective — including a fix-verification pass most reviews skip.
1STEP 1
Quick Quote
Contact me anytime; I’ll deliver an accurate quote in minutes, thanks to my deep expertise.
2STEP 2
Security Review
I’ll set up a dedicated GitHub repository and a real-time chat channel to share findings instantly. The review process will be manual with AI assistance, and I’ll create tests as needed.
3STEP 3
Fix Verification
I’ll thoroughly review your implemented fixes and all related code changes to confirm every issue is fully resolved and no new bugs are introduced.
4STEP 4
Final Report
You’ll receive a professionally formatted report including all the findings and corresponding fixes.
Testimonials
From 8 protocols whose code went through this process.
I've had the pleasure to work with Simao over the last few years where he has completed numerous audits for Maple Finance. Each time he's been thorough, finding niche issues missed in prior audits and helping us improve the design and security of the system.
Maple
0xSimao is an absolute pro who really went above and beyond during our audit. It can be hard to find auditors like Simao who have such a high degree of integrity that they are willing to spend time verifying reported issues have been addressed correctly. Others just move on to the next project, but Simao was with us every step of the way.
Nerite
He identified one third of the verified issues in a 6.2k SLOC codebase, a testament to his thoroughness and auditing skills. Additionally, his contributions during the fix review process were instrumental in uncovering further issues.
Beraborrow
He quickly demonstrated a total understanding of the protocol, its goal and mechanics. All of the final 3 High and 3 Medium severity issues raised during the audit were discovered by 0xSimao. Finally, 0xSimao’s reactivity and advice were very appreciated during the fix review process.
Superfluid
We had the opportunity to work with 0xSimao as the Lead Senior Watson for the Mento x Good$ Integration audit. He identified multiple issues with exceptional thoroughness and ensured that each one was properly addressed and mitigated.
Mento
0xSimao, during his audit with PoolTogether, was the sole auditor to discover a complex, high-severity issue that demonstrated his experience and deep understanding of the codebase. His thorough review was instrumental in ensuring the security and longevity of the core protocol.
PoolTogether
He completely understood how the codebase works and uncovered 52% of the confirmed issues, a clear indication of his exceptional eye for detail and robust auditing capability. His proactive role in the remediation review further brought additional issues to light.
Autonomint
He demonstrated deep knowledge of the underlying stack (Uniswap v4), discovered most of the high-level issues raised, and had great communication with us every step of the way. We would highly recommend him to audit a protocol and look forward to collaborating further on our protocol’s security in the future.
BMX
I've had the pleasure to work with Simao over the last few years where he has completed numerous audits for Maple Finance. Each time he's been thorough, finding niche issues missed in prior audits and helping us improve the design and security of the system.
Maple
0xSimao is an absolute pro who really went above and beyond during our audit. It can be hard to find auditors like Simao who have such a high degree of integrity that they are willing to spend time verifying reported issues have been addressed correctly. Others just move on to the next project, but Simao was with us every step of the way.
Nerite
He identified one third of the verified issues in a 6.2k SLOC codebase, a testament to his thoroughness and auditing skills. Additionally, his contributions during the fix review process were instrumental in uncovering further issues.
Beraborrow
He quickly demonstrated a total understanding of the protocol, its goal and mechanics. All of the final 3 High and 3 Medium severity issues raised during the audit were discovered by 0xSimao. Finally, 0xSimao’s reactivity and advice were very appreciated during the fix review process.
Superfluid
We had the opportunity to work with 0xSimao as the Lead Senior Watson for the Mento x Good$ Integration audit. He identified multiple issues with exceptional thoroughness and ensured that each one was properly addressed and mitigated.
Mento
0xSimao, during his audit with PoolTogether, was the sole auditor to discover a complex, high-severity issue that demonstrated his experience and deep understanding of the codebase. His thorough review was instrumental in ensuring the security and longevity of the core protocol.
PoolTogether
He completely understood how the codebase works and uncovered 52% of the confirmed issues, a clear indication of his exceptional eye for detail and robust auditing capability. His proactive role in the remediation review further brought additional issues to light.
Autonomint
He demonstrated deep knowledge of the underlying stack (Uniswap v4), discovered most of the high-level issues raised, and had great communication with us every step of the way. We would highly recommend him to audit a protocol and look forward to collaborating further on our protocol’s security in the future.
BMX
Community Notes
Unsolicited feedback from the Web3 security community.
Really excited to see 0xSimao joining Blackthorn as the 10th founding member. He proved it's still possible to crack the top 5 on Sherlock's leaderboard in this day and age, achieving it a few days ago. And he's a really nice guy.
What a legend! Thank you for sharing and it was our pleasure to be part of your journey. You are really one of the greats in the space. GG well played sir.
0xSimao is a beast, I really like his kind of findings, excelling at identifying tricky numerical corner cases. Sometimes I wonder if he's actually a human fuzzer. You should definitely check him on Solodit and take notes.
FarhaanTech Lead, Smart Contracts, Maple
1 Critical
2 High
1 Medium
1 Low
2 Info
Protocols reviewed +77 more
Maple
Nerite
Beraborrow
Superfluid
Mento
PoolTogether
Autonomint
BMX
Jack Sanford
Three Sigma
InfectedCrypto
Mackenzie