Least Authority

About

Least Authority is a security and privacy company operated by Least Authority TFA GmbH, based in Berlin, Germany. Its security consulting practice supports Web3, blockchain and FinTech teams from design through production and launch. Services include line-by-line source code audits, smart contract audits, specification and white paper reviews, decentralized systems architecture reviews, security by design consultation and compliance support. The team has particular expertise in advanced cryptography and zero-knowledge proof technology, and states that it can audit code written in Rust, Go, Python, C and C++, Solidity, Cairo, Circom, Noir, Haskell, OCaml, TypeScript and Swift. Its website names work in ecosystems such as Ethereum, Polygon, Cosmos, Stacks, Tezos, Mina and Filecoin, and describes the use of AI to speed up audits, with every output reviewed and validated by the team. Least Authority keeps a public page of published audits, organised by year, with reports from 2025 and 2026 covering smart contracts, zero-knowledge provers, key generation, signature libraries, wallets and network upgrades. It also develops privacy-enhancing products and community projects such as the MoonMath Manual.

At a glance

• Operated by Least Authority TFA GmbH, Berlin
• Audits smart contracts, cryptographic protocols and zero-knowledge systems
• Offers specification reviews, architecture reviews and security by design consulting
• Public page of published audits by year, with 2026 reports
• Maintains the MoonMath Manual and privacy-enhancing open-source products

Least Authority: frequently asked questions

What services does Least Authority offer?

According to its public information, Least Authority offers: Audit.

Which blockchains does Least Authority work with?

Least Authority works with Ethereum, Polygon, Cosmos, Solana, and Avalanche.

Which smart contract languages does Least Authority use?

Least Authority works with Rust, Go, Solidity, and Cairo.

Where is Least Authority based?

Least Authority is headquartered in Germany.

Is Least Authority verified on smart-contract.com?

Not yet. This listing was compiled from public information and Least Authority has not claimed it or gone through the vetting process of smart-contract.com.

How can I get a quote from Least Authority?

Describe your project once on smart-contract.com: you receive comparable quotes from vendors that match it, in the same format. Development and audit are always entrusted to two independent companies.