Hi, I'm Eren!, otherwise known as "pessimist". I am a 21 y/o Blockchain Security Researcher at Hashlock, ex-Game Designer at Voodoo, occasionally contributing Pioneer Labs. Currently focused on smart contract audits while also doing bug bounty hunting across L1 chains and various other domains.
Areas of FocusI previously helped new developers, security researchers, and share resources on Buildchain and write articles on CoinDesk Turkiye (+ learn page) (website is not active anymore).
Also have worked several times on a project basis with the team at GregoAI, operating at the bleeding edge of AI-integrated Web3 security, both before and after the company was established.
open to discuss, brainstorm about anything! just dm me on X, @0xpessimist
Portfolio| Project | Severity | Platform | Language | Social |
|---|---|---|---|---|
| Credit Guild | Medium | Private BBP | Solidity | Announcement |
| Xterio | Medium (Duplicate) | Immunefi | Solidity | N/A |
| Beanstalk | Medium | Immunefi | Solidity | Announcement |
| Secret Network | Critical | Private BBP | Go | N/A |
| Stride | Medium | Private BBP | Go | N/A |
| Neutaro (Timpi) | Critical | Private BBP | Go | N/A |
| Kava | High | Private BBP | Go | N/A |
| Maya Protocol | High | Immunefi | Go | Announcement |
| Nomina (fka Omni) | Low | Immunefi | Go | Announcement |
| Nomina (fka Omni) | Low | Immunefi | Go | N/A |
| Nomina (fka Omni) | High | Immunefi | Go | Announcement |
| Nomina (fka Omni) | Medium (Known Issue) | Immunefi | Go | N/A |
| Eco Foundation | High | Cantina | Solidity | Announcement |
| Eco Foundation | High | Cantina | Solidity | Announcement |
| Private (NDA) | Critical | Private BBP | Go | Announcement |
| Neutron | Low | Immunefi | Go | Announcement |
| Private for now | Critical | Immunefi | Go | N/A |
| Private for now | High (Duplicate) | Private BBP | Go | N/A |
Bug Bounties with 0xSorryNotSorry
| Project | Severity | Platform | Language | Social |
|---|---|---|---|---|
| Threshold Network | Medium (Duplicate) | Immunefi | Solidity | N/A |
| Silo Finance | Medium | Private Disclosure | Solidity | N/A |
| Project | Firm | Language | Date |
|---|---|---|---|
| Private (NDA) | Solo Audit (Myself) | Solidity | Aug 2024 |
| Voyager | Hashlock | Solidity | Aug 2025 |
| Paradise Tycoon | Hashlock | Solidity | Aug 2025 |
| Zeus Exchange | Hashlock | Solidity | Aug 2025 |
| Zenchain Bridge | Hashlock | Solidity | Aug 2025 |
| SilverSwap | Hashlock | Solidity | Sep 2025 |
| Lazymog | Hashlock | Solidity | Sep 2025 |
| Forte AUD | Hashlock | Solidity | Sep 2025 |
| 00bleck Protocol | Hashlock | Solidity | Oct 2025 |
| Dedcat | Hashlock | Solidity | Oct 2025 |
| Private | Solo Audit (Myself) | Solidity | Oct 2025 |
| KlimaDAO | Hashlock | Solidity | Dec 2025 |
| Alethia AI | Hashlock | Solidity | Jan 2026 |
| BlackTie Digital | Hashlock | Solidity | Jan 2026 |
| Superset | Hashlock | Solidity | Jan 2026 |
| Noon | Hashlock | Solidity | Feb 2026 |
| TOPOS | Hashlock | Solidity | Mar 2026 |
| Superset (2nd Audit) | Hashlock | Solidity | Mar 2026 |
| HedgeHogs | Hashlock | Solidity | Apr 2026 |
| VALYGO | Hashlock | Solidity | Apr 2026 |
| Project | Description | Language | Social | State |
|---|---|---|---|---|
| Serpent Router | A modular and gas-efficient DEX aggregation router for token and ether swaps through multiple protocols via swappers. | Mostly Yul with Solidity | N/A | No longer maintained |
| Block Scanner | Discord bot that provides real-time blockchain information (currently only Ethereum Mainnet). | Python | N/A | No longer maintained |
| Combined Auction | Smart contract implementing a combined auction mechanism switching from Dutch to English auction. | Solidity | N/A | No longer maintained |
Works I did together with Natzuu under the name Ward Audits:
| Project | Description | Language | Social | State |
|---|---|---|---|---|
| Fibrous Finance | We developed Solidity smart contracts to port Fibrous Finance, Starknet's first DEX aggregator, to EVM-based blockchains (specifically Scroll). | Solidity | Announcement | In active use on Scroll Mainnet |
| Project | Findings | Platform | Language | Report |
|---|---|---|---|---|
| Revolution Protocol | 1 H, 1 L | Code4rena | Solidity | Link |
| Ethereum Credit Guild | 1 M | Code4rena | Solidity | Link |
| The Standard | 1 H | CodeHawks | Solidity | Link |
| 021 (fka reNFT) | 1 H, 1 M | Code4rena | Solidity | Link 1, Link 2 |
| Salty.IO | 2 M | Code4rena | Solidity | Link 1, Link 2 |
| TraitForge | 1 M | Code4rena | Solidity | Link |
| Tadle | 1 H, 1 M, 1 L | CodeHawks | Solidity | Link 1, Link 2, Link 3 |
| Fjord Foundry | 1 M | CodeHawks | Solidity | Link |
| ZetaChain | 1 L | Cantina | Solidity | Private |
| Symbiotic | 2 L, 2 INFO | Cantina | Solidity | Private |
