node.security @node_security

node.security/docs/tools/sta…

Static analysis is the foundation of every deep smart contract audit. Our Static Analysis guide covers how we extract signal early in the review process: • Pattern Detection: Surface common bugs and footguns using tools like Slither, Mythril, and Securify. • Custom Rules: Write detectors tailored to the protocol’s unique logic and assumptions. • Semantic Analysis: Trace control flow, validate access patterns, and highlight unsafe dependencies. • Noise Reduction: Filter false positives and refine findings with human review. • Audit Acceleration: Use structured output to guide manual inspection and hypothesis testing. Static tools give us a first sweep - fast, consistent, and scalable while pointing human eyes where they matter most. #SmartContractSecurity #BlockchainSecurity #SecurityEngineering #NodeSecurity

100% test coverage doesn’t mean your code is secure. tests check what you expect to happen. most security bugs happen in the paths you didn’t expect.

1/7 Our latest research: "From Money Legos to Castles: The Crypto SuperApp Race Has Begun." We analyze crypto's maturation, the shift from fragmented 'money legos' to integrated SuperApps, and the race to build these all-in-one financial platforms. Read the full analysis: node.capital/blog/from-mone…

Read more: node.security/docs/tools

Automated tools are a core part of how we scale precision and coverage in smart contract audits. Our Security Tools guide outlines the layers we use throughout the audit lifecycle: • Static Analysis: Catch known vulnerability patterns with Slither, Mythril, and Securify. • Dynamic Testing: Use Echidna and Foundry to stress-test logic under randomized or adversarial inputs. • Formal Verification: Prove critical invariants using tools like Certora and Manticore. • Custom Scripts: Trace token flows, analyze dependencies, surface unsafe patterns, and map protocol-level risks. • Manual Review Support: Tools inform and accelerate our deep dives - not replace them. Tools enhance audit velocity and depth. When paired with manual reasoning, they help us deliver high-confidence results in complex systems. #SmartContractSecurity #BlockchainSecurity #SecurityEngineering #NodeSecurity

Smart accounts are coming to EOAs. EIP-7702 opens the door to powerful delegation and modular wallet behavior. But with new flexibility comes new security risks.

Shahaf Antwarg @kotevcode

a year ago

1/ been thinking a lot about eip‑7702. it’s not just a small upgrade - it blurs the line between eoas and contracts. as a security researcher, i love it. as a developer, it scares me :) let’s break it down:

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@Nodemonste 🫡

at node.security, we focus not only on vulnerabilities in code, but on flawed assumptions in protocol design. security is a mindset - code is just the interface.

Shahaf Antwarg @kotevcode

a year ago

5/ bugs live in the space between intent and reality. secure code is just one layer. the mindset is everything.

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Full guide: node.security/docs/best-prac…

DeFi security demands more than just smart contract correctness. Our DeFi Security Best Practices guide outlines essential protections for composable finance systems: • Incentive Alignment: Design economic incentives to resist manipulation and abuse. • Risk Management: Build flexible parameters, circuit breakers, and contingency plans. • Oracle Security: Use decentralized sources, TWAPs, and price bounds to resist manipulation. • Liquidity Protections: Enforce slippage limits, front-running resistance, and emergency exits. • Flash Loan Defense: Anticipate atomic attack paths and harden sensitive operations. • Governance Security: Implement timelocks, parameter guards, and sybil-resistant mechanisms. • MEV Mitigation: Reduce extraction risks with commit-reveal patterns and batch operations. • Cross-Protocol Risk: Model interconnected failures and monitor integrations continuously. Resilient DeFi isn’t just about coding - it’s about designing economic, governance, and composability safeguards into the system from the start. #DeFiSecurity #BlockchainSecurity #SmartContractSecurity #Web3 #NodeSecurity

1/6 Our latest research, "Move Fast and Build Things: The Sui Suite of Innovations," explores @SuiNetwork. We argue sustainable Web3 adoption requires more than a single 'killer feature,' but a comprehensive, quality stack: performance, dev frameworks, seamless UX & aligned economics. Written by @node_or. Read the full analysis: node.capital/blog/move-fast…

Full guide: node.security/docs/best-prac…

Smart contract security starts with disciplined engineering. Our Smart Contract Best Practices guide outlines key principles every Web3 developer should follow to build resilient, production-grade contracts: • Simplicity Over Complexity: Keep logic modular and focused. Complexity increases the attack surface. • Defensive Programming: Validate every input, handle unexpected states, and assume external calls may be malicious. • Secure Upgradeability: Use trusted patterns, restrict permissions, and audit delegatecall logic rigorously. • Access Control: Enforce strict permissions using modifiers, ownership patterns, and multisigs where applicable. • External Calls: Follow the checks-effects-interactions pattern and guard against reentrancy. • Gas & Arithmetic: Optimize with awareness of gas griefing, overflow/underflow, and fixed-point math precision issues. • Testing & Verification: Cover edge cases with unit tests, use static analysis, and formally verify critical components. Security is not a one-time action, it’s a mindset baked into the development lifecycle. #SmartContractSecurity #Web3 #BlockchainSecurity #NodeSecurity

Builders keep building! Excited to share this news with our community. Node Group launched node liquid, @node_security and node link to support founders and companies. theblock.co/amp/post/35044…

It's a great opportunity to thank all of you who joined as speakers in our event in Tel Aviv, helping us connect between the Israeli crypto eco-system and investors around the world!🫡 @einar_hb @coinfund @MikeSilagadze @ether_fi @bcap @jonah_b @IdanOfrat @FireblocksHQ @EliBenSasson @StarkWareLtd @BlockchangeVC @schmults @NorthIslandVC @travischer @adambn @ColliderVC @AmosMeiri @BENROTHSCHILD03

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explore the full guide here: node.security/docs/best-prac…

We believe that robust blockchain applications are built on solid security foundations. Our Blockchain Security Best Practices guide offers a comprehensive framework to help developers and teams secure their projects effectively. Key Principles: •Defense in Depth: Implement multiple layers of security controls to protect against potential failures. •Least Privilege: Ensure components operate with the minimum necessary permissions. •Secure Defaults: Design systems to be secure out-of-the-box, minimizing the need for additional configurations. •Fail Securely: Ensure that system failures do not compromise security. •Economy of Mechanism: Keep security mechanisms simple to reduce vulnerabilities and ease analysis. Security Across the Development Lifecycle: •Requirements and Design: Conduct early threat modeling, define trust boundaries, and establish security requirements. •Implementation: Adhere to secure coding standards, utilize audited libraries, and perform regular code reviews. •Testing and Verification: Employ static analysis tools, test edge cases, and consider formal verification for critical components. •Deployment and Operations: Establish secure deployment procedures, monitor for suspicious activities, and have an incident response plan in place. Stay updated with the evolving security landscape by engaging with the community, monitoring vulnerability disclosures, and participating in regular security training. #BlockchainSecurity #SmartContractSecurity #DeFiSecurity #Web3

eof (evm object format) is coming in the ethereum pectra upgrade. one important change: tx.origin == msg.sender will no longer be true in some cases. if your contract relies on that check, it could break.

Oh yeah... and that 👇. just keep building. @TheBlock__ theblock.co/post/350442/no…