Josef Gattermayer | ack3▮ (@jgattermayer) — Twitter Score 72 out of 1000

Josef Gattermayer is a blockchain security researcher and educator who co-founded Ackee Blockchain Security and serves as its CEO. Josef Gattermayer's Twitter Score is 72 out of 1000 (a Good rating) as of July 2026, ranking #13,231 (top 5%) among 531,432 tracked accounts.

Josef Gattermayer co-founded Ackee Blockchain Security in 2021, building it into a firm that has audited more than 200 protocols, personally supervising over 100 of those audits. The team has identified 102 critical vulnerabilities and secured more than $180 billion in total value locked, with clients including Lido, Aave, and Safe. Josef Gattermayer also sits on the Lido Dual Governance Emergency Committee and applied as a candidate for the Arbitrum Security Council in September 2025 and March 2026.

Josef Gattermayer co-created two open-source developer tools: the Wake Framework, a Python-based Solidity development, testing, and fuzzing framework that received a Coinbase grant, and Trident, a Rust-based Solana fuzzing framework supported by a Solana Foundation grant. Ackee has also received development grants from the Ethereum Foundation, Optimism, Coinbase, and the Solana Foundation.

Josef Gattermayer leads the School of Solana, an Ackee educational program operating as a Solana Foundation Educational Partner that has trained more than 2,500 developers. Beyond his industry work, he is a lecturer and tutor at FIT CTU and holds a Ph. D. from the same institution. Josef Gattermayer's account has published 1,211 posts and has been mentioned by 10 accounts a total of 25 times, with 16,545 followers as of July 2026 on the platform.

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The accounts that follow Josef Gattermayer include 398 founders, 59 angel investors, 210 influencers and 5 VCs, among them Toly, Kyle Samani, John Wang, Mando, 0xMaki and Erika Lee.