Null Return
Smart contract audits and blockchain infrastructure security
Null Return is a security team based in Novi Sad, Serbia, founded in 2025. We provide smart contract audits for DeFi projects, including Ethereum/EVM, TON and Cairo/Starknet, as well as formal verification and blockchain infrastructure security reviews. Our work covers payment infrastructure, key management, KMS drivers and signing systems. We help teams identify vulnerabilities, understand their impact and verify remediation through clear, actionable security reports. Projects start at EUR 1,000. Final scope, timeline and pricing are agreed before work begins. Contact [email protected] to discuss your project. No review yetBe the first to write one
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1 service offered by Null Return
Description Smart contract audits and blockchain infrastructure security reviews, including DeFi, TON, Cairo/Starknet, key management and signing systems. Projects start at EUR 1,000; the final quote depends on scope and complexity.
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- HeadquarterŽeleznička 20, Novi Sad, Serbia