About Cyba
A security firm focused on rigorous smart contract and protocol security across EVM-compatible chains and Bitcoin L2 ecosystems, including Stacks (Clarity).
Built on a foundation of deep Web2 and Web3 security experience, Cyba emphasizes high-quality, adversarial reviews and clear, step-by-step guidance throughout every engagement, helping teams not only identify risks, but understand and resolve them with confidence.
We are vehemently opposed to vague “fix the issue” recommendations.
Meet the Core Team
The researchers behind every Cyba audit.
Alin Barbatei is the Founder and Principal Security Researcher of Cyba Blockchain Security, bringing over a decade of cybersecurity expertise spanning Web2 and Web3. He has audited smart contracts securing over $1B in TVL across EVM and Bitcoin L2 ecosystems, including Stacks (Clarity), uncovering thousands of vulnerabilities through independent and collaborative engagements.
A former Security Researcher and Team Lead at Bitdefender's Cyber Threat Intelligence Lab, he spent over eight years reverse-engineering malware, publishing research, and driving industry-leading detection benchmarks. This foundation shaped his adversarial, protocol-level approach to blockchain security.
He has collaborated with top-tier security firms, including Guardian Audits and Clarity Alliance, placing first in multiple audit contests and contributing to high-impact security research.
Silverologist is a core Security Researcher at Cyba Blockchain Security. Before moving into Web3, she worked as a senior developer and security researcher in Web2. She has since completed 25+ private audits and placed in the top 10 of nine Cantina audit competitions, including first, second and third place finishes against hundreds of researchers.
She has worked alongside Alin on more than a dozen Cyba engagements, auditing lending protocols, credit vaults, cross-chain bridges, AMMs and launchpads on EVM chains and Stacks. That work has uncovered multiple critical and high severity vulnerabilities.
She has also collaborated with Clarity Alliance on reviews of core Stacks infrastructure and leading DeFi protocols in the Bitcoin ecosystem, and has judged audit competitions and triaged bug bounties for Cantina.
The Right Team for Every Audit
Every engagement is led by our core team. When an audit calls for extra depth or a specific background, we bring in trusted independent security researchers as contractors, chosen for the expertise that protocol needs. Securing your project will be done the right way.