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 smart contract auditing firm with a consistent record of 5-star reviews across 19 engagements on a single platform. The vendor demonstrates exceptional uniformity in quality, schedule adherence, and communication, with no negative mentions or Areas for Improvement recorded across any review. All ratings cluster at or near 5.0 across all sub-metrics, though the near-absence of quantified business outcomes (e.g., specific vulnerability counts, cost savings, or performance metrics) limits the density of some anchor reviews.
Performance breakdown
Technical expertise
StrongMultiple reviewers highlight Hashlock's ability to go beyond surface-level checks into business logic, covering DeFi apps, Ethereum smart contracts, Bitcoin Mainnet deployments, and decentralized AI infrastructure. Clients across sectors consistently praised the depth and actionability of audit findings.
Project management & delivery
StrongAcross 19 reviews, on-time delivery is uniformly confirmed, with schedule sub-ratings at 5.0 in nearly every case and one instance of 4.5. Hashlock is noted for fitting into client sprint timelines and adapting to scope changes without impacting delivery.
Communication & collaboration
StrongReviewers consistently describe Hashlock as responsive, transparent, and easy to work with via email, messaging apps, and virtual meetings. Multiple clients specifically highlighted personalized service and the team's availability for meetings as standout qualities.
Reliability
StrongClients report consistently bug-free and complete audit deliverables, with products launching successfully post-audit. No reviewer reported rework, missed commitments, or unresolved issues, indicating a stable and dependable delivery record.
Client satisfaction & outcomes
MixedClient satisfaction is uniformly high, with multiple clients confirming improved platform security and boosted confidence prior to launch. However, most reviews lack quantified business outcomes such as specific vulnerability counts or measurable risk reduction percentages, limiting outcome evidence density.
Best for
Hashlock is best suited for blockchain-native companies, DeFi platforms, and Web3 startups requiring smart contract audits, penetration testing, and cybersecurity assurance prior to product launch or mainnet deployment.
Clients info
Hashlock serves predominantly small to mid-sized technology and blockchain-native companies, with most clients in the 1–50 employee range. Project budgets are most commonly under $50,000, with several engagements in the $10,000–$49,999 band and many kept confidential. Key sectors include information technology, DeFi, Web3, and decentralized infrastructure. Primary industries represented include Information Technology, Blockchain & DeFi, Web3 & Decentralized Infrastructure, Advertising & Marketing, Arts, Entertainment & Gaming. 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 19 reviews drawn from a single platform, spanning July 2023 to July 2026. The majority of reviews are recent, with 15 published in 2025 or 2026. Three reviews date to mid-2023, which remain relevant but are now over two years old. Review date range: Jul 24, 2023 - Jul 15, 2026.
Performance breakdown
Technical expertise
StrongMultiple reviewers highlight Hashlock's ability to go beyond surface-level checks into business logic, covering DeFi apps, Ethereum smart contracts, Bitcoin Mainnet deployments, and decentralized AI infrastructure. Clients across sectors consistently praised the depth and actionability of audit findings.
Project management & delivery
StrongAcross 19 reviews, on-time delivery is uniformly confirmed, with schedule sub-ratings at 5.0 in nearly every case and one instance of 4.5. Hashlock is noted for fitting into client sprint timelines and adapting to scope changes without impacting delivery.
Communication & collaboration
StrongReviewers consistently describe Hashlock as responsive, transparent, and easy to work with via email, messaging apps, and virtual meetings. Multiple clients specifically highlighted personalized service and the team's availability for meetings as standout qualities.
Reliability
StrongClients report consistently bug-free and complete audit deliverables, with products launching successfully post-audit. No reviewer reported rework, missed commitments, or unresolved issues, indicating a stable and dependable delivery record.
Client satisfaction & outcomes
MixedClient satisfaction is uniformly high, with multiple clients confirming improved platform security and boosted confidence prior to launch. However, most reviews lack quantified business outcomes such as specific vulnerability counts or measurable risk reduction percentages, limiting outcome evidence density.