arda.co

What it is

Arda is a security audit firm for blockchain projects, with the stated mission of “finding vulnerabilities before hackers do.” Based on the site copy, it is not a traditional network perimeter defense or cloud security platform; instead, its core offering is manual auditing and security consulting. Its audit scope includes smart contracts, virtual machines, and nodes, with customer examples such as Axelar, MultiversX, Hatom, and AshSwap.

Core capabilities

In terms of protection coverage, Arda focuses on key code- and protocol-layer risks in Web3 security: Smart contracts, VMs, and Nodes. Its supported tech stack includes EVM, Solana, Sui, MultiversX, and other chains, as well as languages such as Rust, Go, Solidity, and Move, making it a fit for multi-chain protocols or lower-level infrastructure projects. Its services are divided into Full Review and Flexible Review: the former targets a fixed commit after a code freeze and is suitable for pre-launch audits; the latter is designed for codebases that are still changing during development, aiming to identify as many issues as possible within constraints such as budget and timeline. It also offers hourly Consulting Calls for security Q&A, design review, or incident response advice.

Pricing and delivery

The website does not disclose standard packages or specific pricing. It only states that Flexible Review takes budget and timeline into account, while consulting calls are billed hourly. Before procurement, teams will need to clarify the scope, deliverables, retesting, schedule, and payment method. Arda’s disclosed track record includes 1776 issues, 139 critical issues, and 145 reviews across 25 projects, with report access provided; these can serve as useful references when assessing audit quality.

Pros and cons

The advantages are its vertical focus, broad coverage of chains and programming languages, and ability to audit lower-level components such as nodes and VMs, beyond standard smart contracts. Customer feedback emphasizes its ability to deeply understand complex protocols. The downsides are the lack of information on compliance certifications, SLAs, admin dashboards, automated alerts, continuous monitoring, payment methods, or enterprise procurement processes. Large organizations that require SOC2, ISO, or vendor compliance documentation will still need to conduct additional due diligence.

Who it is for and access from China

Arda is better suited to Web3 teams preparing for mainnet launch, protocol upgrades, cross-chain deployments, or lower-level component development, especially projects using multiple languages such as Rust, Go, Solidity, and Move. Access from China cannot be determined from the available site content and should be treated as “unknown.” Payment and contract terms also need to be confirmed separately. If localized communication or alternatives are needed, teams may compare it with OpenZeppelin, Trail of Bits, ConsenSys Diligence, CertiK, SlowMist, PeckShield, and others.