This is a public profile of my adventure as an independent blockchain and smart contract security researcher.
Currently, I'm a lead security auditor at Oak Security (and Solidified), senior auditor at trust-security.xyz, security researcher at Spearbit, top warden & judge at Code4rena, and a (prev. senior) watson at Sherlock.
Feel free to check out my Cantina profile for more information and engagements: https://cantina.xyz/u/bernd
I'm available for web3 security consulting and private security reviews. Please reach out to me on Twitter (@berndartmueller) or Telegram (bernd_42) if you're interested.
| Expertise | Proficiency |
|---|---|
| Solidity/EVM | ⚡⚡⚡⚡⚡⚡⚡⚡⚡⚡ |
| CosmWasm (Rust) | ⚡⚡⚡⚡⚡⚡⚡⚡⚡⚡ |
| Cosmos SDK (Go) | ⚡⚡⚡⚡⚡⚡⚡⚡⚡⚡ |
| NEAR (Rust) | ⚡⚡⚡⚡⚡ |
| MOVE (SUI) | ⚡⚡⚡⚡⚡ |
| Project | Client | Date | Report |
|---|---|---|---|
| Bazaar | Bazaar | February 2023 | GitHub |
| Reunit Wallet - Token Presale | Reunit Wallet | February 2023 | GitHub |
| Juicebox V3 Migration | Juicebox | January 2023 | GitHub |
| Contest | Date | Platform | Rank | Report |
|---|---|---|---|---|
| Initia Cosmos (Cosmos SDK) | February 2025 | Code4rena | 1st 🥇 | |
| MANTRA Chain (Cosmos SDK) | Dec/Jan 2025 | Code4rena | 1st 🥇 | |
| Initia Rollup Modules (Cosmos SDK) | January 2025 | Code4rena | 1st 🥇 (RadiantLabs Guest) | |
| Curvance | Feb/Mar/Apr 2024 | Cantina | 3rd 🥉 | |
| ZetaChain (Cosmos SDK) | December 2023 | Code4rena | 1st 🥇 | Link |
| DittoETH | September 2023 | CodeHawks | 3rd 🥉 | Link |
| Tokemak | July/August 2023 | Sherlock | 5th | Link |
| Beedle | July 2023 | CodeHawks | 1st 🥇 | Link |
| Bond Options | July 2023 | Sherlock | 2nd 🥈 | Link |
| Symmetrical | June 2023 | Sherlock | 6th | Link |
| Y2K | March 2023 | Sherlock | 4th | Link |
| Blueberry | February 2023 | Sherlock | 3rd 🥉 | Link |
| Drips Protocol | February 2023 | Code4rena | 3rd 🥉 | Link |
| Ajna | January 2023 | Sherlock | 3rd 🥉 | Link |
| UXD Protocol | January 2023 | Sherlock | 4th | Link |
| Debt DAO | November 2022 | Code4rena | 5th | Link |
| Chainlink Staking v0.1 | November 2022 | Code4rena | 5th | |
| Mycelium | October 2022 | Sherlock | 4th | Link |
| Mover | October 2022 | Sherlock | 2nd 🥈 | Link |
| Astaria - As part of the Secureum team with Rajeev | October 2022 | Sherlock | 1st 🥇 | Link |
| Juicebox | October 2022 | Code4rena | 4th | Link |
| Fraxlend (Frax Finance) | August 2022 | Code4rena | 3rd 🥉 | Link |
| Juicebox V2 | July 2022 | Code4rena | 1st 🥇 | Link |
| Putty | June 2022 | Code4rena | 5th | Link |
| Badger-Vested-Aura | June 2022 | Code4rena | 4th | Link |
| Rubicon | May 2022 | Code4rena | 4th | Link |
| Sturdy | May 2022 | Code4rena | 2nd 🥈 | Link |
| Enso Finance | May 2022 | Code4rena | 4th | |
| Maple Finance | March 2022 | Code4rena | 5th | Link |
Soon...
| Project | Vulnerability | Severity | Platform | Report |
|---|---|---|---|---|
| Soon... | Critical | |||
| Soon... | Critical | |||
| Soon... | Critical | |||
| Soon... | Low |
| Certification | |
|---|---|
| Crypto Currency Security Standard Auditor (CCSSA), Expired |  |
#audit #auditor