Demystifying DeFi Hacks: Reentrancy Attacks
Demystifying DeFi Hacks: Reentrancy Attacks
Reentrancy attacks involve looping deposit and withdrawal requests in a smart contract to steal funds. An example is withdrawing from an ATM without the account balance being updated. The Fei/Rari attack resulted in $80m in losses and led to payouts for Rari Protocol Cover holders. Reentrancy vulnerabilities have caused several DeFi hacks, such as those in Curve, Vyper, Conic, Sturdy, and Sentiment. Nexus Mutual aims to educate more people about common attack types in DeFi.
Demystifying DeFi Hacks 🕵️ This is start of a new series where we'll be reviewing common vulnerabilities in terms anyone can understand, with new posts arriving every Friday. Today, we'll talk about reentrancy attacks and look at a case study 👇
OpenCover Launches Covered Vaults with $50M Coverage Capacity
OpenCover has launched **Covered Vaults**, offering vault operators embedded insurance coverage with flexible terms. **Key features:** - $50M coverage capacity per vault - No prepayment required - No fixed terms - Premiums automatically streamed from vault yield The platform aims to make vault operations safer through seamless risk management. Vault operators and curators interested in embedded risk transfer can contact OpenCover directly. This launch represents a step toward making DeFi infrastructure more secure and accessible.
Neptune Mutual's BD Head Discusses DeFi Coverage with Sam Kamani
Neptune Mutual's Head of Business Development met with Sam Kamani to discuss key insurance topics in the crypto space. **Key discussion points:** - DeFi coverage solutions - Crypto Kidnap & Ransom (K&R) insurance - Additional protection mechanisms for the industry The conversation explored how insurance alternatives are evolving to meet the unique risks facing crypto users and protocols. As DeFi continues to grow, specialized coverage options become increasingly relevant for participants in the ecosystem. This meeting reflects ongoing efforts to expand protection options beyond traditional insurance models in the digital asset space.
Nexus Mutual Interviews COO Ricky Tan
Nexus Mutual has published an interview with their Chief Operating Officer, Ricky Tan, on their blog. The interview provides insights into the team behind the crypto insurance alternative platform. Read the full conversation: [Nexus Mutual Team Talks: Ricky Tan, COO](https://nexusmutual.io/blog/nexus-mutual-team-talks-ricky-tan-coo)
Nexus Mutual COO: DeFi's Complexity Problem and the Path Forward
Nexus Mutual's COO argues that DeFi protocols are moving too fast toward complexity without establishing fundamentals first. **Key principles for sustainable growth:** - **Focus matters** - Doing fewer things well beats scattered expansion - **Constraints drive strategy** - Limitations force better decision-making - **Patience pays off** - Especially critical during market volatility The message aligns with broader industry shifts toward efficiency and composability. As DeFi matures, protocols are recognizing that capital flow, system integration, and clear risk communication aren't obstacles to innovation—they're foundations for building systems that last. Nexus Mutual continues developing its insurance alternative approach while applying these principles to its 2026 roadmap.
Nexus Mutual Develops Shared Risk Vocabulary for Maturing DeFi Sector
Nexus Mutual is building a standardized framework for discussing risk in DeFi as the sector matures. **Key developments:** - Creating shared vocabulary for risk assessment across DeFi - Targeting risk teams, protocol builders, institutions, and investors - Emphasizes transparent onchain data combined with expert networks - Positions risk sharing as collaborative rather than competitive The initiative addresses growing institutional demand for structured risk frameworks in DeFi. January saw product milestones and integrations as part of this broader effort.