Hashlock is Australia's leading independent blockchain cybersecurity and smart contract auditing firm. They are a highly specialised Blockchain Cybersecurity firm coming from manual analysis, community auditing backgrounds and differentiate by the quantity of findings and being maintaining a high level of collaboration with clients, both in Australia and globally.
They also run trustedweb3.io , a one stop information hub for all things Blockchain Cybersecurity and a recognition of security focused industry stakeholders. The NSW Government, Blockchain Australia, RMIT University, and enterprise contributors have joined in on this initiative with Hashlock.
Hashlock is Australia's leading independent blockchain cybersecurity and smart contract auditing firm. They are a highly specialised Blockchain Cybersecurity firm coming from manual analysis, community auditing backgrounds and differentiate by the quantity of findings and being maintaining a high level of collaboration with clients, both in Australia and globally.
They also run trustedweb3.io , a one stop information hub for all things Blockchain Cybersecurity and a recognition of security focused industry stakeholders. The NSW Government, Blockchain Australia, RMIT University, and enterprise contributors have joined in on this initiative with Hashlock.
AI Overview
Performance snapshot
Hashlock is a specialized blockchain security and cybersecurity audit firm with a consistent record of delivering smart contract audits, penetration testing, and code reviews across Web3, DeFi, and decentralized infrastructure projects. Across 17 reviews spanning a single platform, the vendor earns predominantly Strong ratings, with no recurring negative themes or escalated delivery failures. Sub-metric scores are near-perfect across quality, schedule, cost, and willingness to refer, reinforcing a highly reliable engagement model for security-focused blockchain projects.
Performance breakdown
Technical expertise
StrongReviewers consistently highlight Hashlock's ability to identify critical and low-level vulnerabilities across smart contracts, Ethereum solidity code, network infrastructure, and wallet applications. Engagements span DeFi, NFT, staking, and decentralized storage environments, demonstrating broad blockchain security depth.
Project management & delivery
StrongMultiple clients confirm on-time delivery of initial and final audit reports, with teams fitting cleanly into existing sprint timelines. One anchor review cites a January–April 2026 engagement with a $10,000–$49,999 budget delivered on schedule, supported by consistently perfect schedule sub-ratings across the dataset.
Communication & collaboration
StrongClients across multiple engagements cite clear, actionable feedback, proactive meeting coordination, and responsiveness via email, messaging apps, and virtual meetings. One reviewer noted it felt like adding an internal security team rather than outsourcing, reflecting a high standard of collaborative transparency.
Reliability
StrongHashlock demonstrates strong reliability through consistent on-time delivery, vulnerability identification followed by verified remediation, and stable audit outputs that enabled safe platform launches. No reviews report post-engagement defects, missed deadlines, or inconsistent availability across the full dataset.
Client satisfaction & outcomes
StrongTangible outcomes include eliminated smart contract vulnerabilities, improved platform security pre-launch, and boosted client confidence in product quality. Engagements with a robotics firm and a decentralized storage provider specifically confirmed contract usability and audit-verified readiness for mainnet deployment.
Best for
Hashlock is best suited for blockchain-native companies, DeFi protocols, and Web3 platforms requiring rigorous smart contract audits, penetration testing, and pre-launch security validation, particularly for small to mid-sized teams operating in fast-moving deployment cycles.
Clients info
Hashlock primarily serves small blockchain-native and IT companies, with most clients in the 1–50 employee range operating in DeFi, Web3, decentralized infrastructure, and emerging tech sectors. Project budgets are largely confidential, though disclosed engagements fall between under $10,000 and $49,999, suggesting a mid-to-lower budget positioning. Primary industries represented include Information Technology, Blockchain & Web3, DeFi & Decentralized Infrastructure, Arts, Entertainment & Gaming, Advertising & Marketing. Typical client size bands include 1–10 Employees, 11–50 Employees, 51–200 Employees. Common project budget ranges include Less than $10,000, $10,000 to $49,999, Confidential.
Review strength
The assessment is based on 17 reviews drawn from a single platform, limiting cross-platform validation. Reviews span from July 2023 to May 2026, with the majority published in 2025–2026, confirming strong recency. Two reviews from mid-2023 are over one year old but remain contextually relevant. Review date range: Jul 24, 2023 - May 29, 2026.
Performance breakdown
Technical expertise
StrongReviewers consistently highlight Hashlock's ability to identify critical and low-level vulnerabilities across smart contracts, Ethereum solidity code, network infrastructure, and wallet applications. Engagements span DeFi, NFT, staking, and decentralized storage environments, demonstrating broad blockchain security depth.
Project management & delivery
StrongMultiple clients confirm on-time delivery of initial and final audit reports, with teams fitting cleanly into existing sprint timelines. One anchor review cites a January–April 2026 engagement with a $10,000–$49,999 budget delivered on schedule, supported by consistently perfect schedule sub-ratings across the dataset.
Communication & collaboration
StrongClients across multiple engagements cite clear, actionable feedback, proactive meeting coordination, and responsiveness via email, messaging apps, and virtual meetings. One reviewer noted it felt like adding an internal security team rather than outsourcing, reflecting a high standard of collaborative transparency.
Reliability
StrongHashlock demonstrates strong reliability through consistent on-time delivery, vulnerability identification followed by verified remediation, and stable audit outputs that enabled safe platform launches. No reviews report post-engagement defects, missed deadlines, or inconsistent availability across the full dataset.
Client satisfaction & outcomes
StrongTangible outcomes include eliminated smart contract vulnerabilities, improved platform security pre-launch, and boosted client confidence in product quality. Engagements with a robotics firm and a decentralized storage provider specifically confirmed contract usability and audit-verified readiness for mainnet deployment.