Hans is a smart contract security researcher who founded Solodit, an open-source database of blockchain and smart contract vulnerabilities, exploits, and mitigations, and co-founded Cyfrin. Hans's Twitter Score is 15 out of 1000 as of August 2026, ranking #63,494 among 485,188 tracked accounts.
Hans built Solodit as a community resource for cataloguing smart contract weaknesses and their mitigations before Cyfrin acquired and integrated it into its ecosystem on February 1, 2024. As co-founder of Cyfrin, he continues to operate within that broader security infrastructure. His audit contest record on Code4rena includes 52 valid high-risk findings and 96 valid medium-risk findings, with first-place finishes across multiple contests. He also co-authored the Wrapped Zcash whitepaper, contributing research focused on vulnerability analysis and blockchain infrastructure hardening.
Hans has published 1,001 posts on the platform. He has been mentioned by 6 accounts, with 15 total mentions.
Who follows Hans on X?
The accounts that follow Hans include 69 founders, 10 angel investors and 19 influencers. Among his notable followers are Tay, Andy, Cygaar, mikedemarais.eth, Austin Griffith and Dan Elitzer.