Important security announcement for the Linea Developers Community

Phylax Systems CEO Odysseas will discuss the evolution from reactive to proactive security approaches in DeFi during an upcoming conversation. **Key Details:** - **Topic:** The Credible Layer and its implications for builders and DeFi security - **Date:** Thursday, January 29th - **Time:** 3:00 PM UTC - **Platform:** X and YouTube - **Hosts:** suzapolooza_eth and EricCMack Several protocols including Euler Finance, Malda, Turtle, and Denaria Finance have already integrated the Credible Layer for protocol protection. Public assertions are available at [app.phylax.systems](http://app.phylax.systems).

Linea has integrated Phylax's Credible Layer directly into its sequencer to block exploits before execution. The system works by validating transactions against protocol-defined assertions - security rules that specify what constitutes a "bad outcome." Invalid transactions are dropped while valid ones proceed normally. **Key protocols already protected:** - Euler Finance - Malda - Turtle - Denaria Finance The integration aims to reduce DeFi risk and attract institutional capital. All assertions are publicly viewable at [app.phylax.systems](http://app.phylax.systems). More protocols are expected to deploy soon. This approach differs from traditional security audits by focusing on preventing harmful outcomes rather than searching for bugs. [Learn more about the Credible Layer](https://docs.phylax.systems/credible/credible-introduction?utm_source=twitter&utm_medium=social&utm_campaign=cmp-100328643-afbf08).

Linea has introduced a new system for enforcing transaction rules directly at the sequencer level. **How it works:** - Developers write assertions in Solidity - Deploy them onchain - Linea's sequencer enforces these rules against every transaction - No third-party involvement or additional trust assumptions required The system allows developers to add, edit, or remove rules at any time without modifying production contracts. This approach provides a native way to implement transaction-level controls while maintaining the security guarantees of the rollup itself. The feature represents a shift toward more granular control over transaction execution at the infrastructure level, giving developers new tools for implementing custom logic and constraints.

**Lend.xyz has officially launched on Linea**, bringing tokenized real-world assets (RWAs) to the Layer 2 network. **Key Features:** - Enables fractional ownership of real estate properties - Makes real estate investing more accessible through tokenization - Leverages Linea's zk rollup infrastructure for scalability **Context:** Linea continues to attract RWA protocols, following LiveArt's earlier integration which brought fractionalized art and collectibles to the network. The platform allows users to buy, trade, and borrow against tokenized assets. This launch expands the range of real-world assets available on Linea beyond art and collectibles into the real estate sector.

**Linea achieves historic milestone** by upgrading simultaneously with Ethereum Mainnet for the first time, proving zkEVMs can match Ethereum's upgrade pace. **Rapid evolution timeline:** - zkEVM to London: 4 years - London to Prague: 4 months - Prague to Osaka: **real-time** **Technical approach sets Linea apart:** - Develops ZK proofs directly for EVM (vs. RISC-V virtual machines) - More manual work but delivers superior performance - Plans shift to zkASM for faster circuit implementation **Developer benefits:** - Immediate access to newest EVM features when Ethereum upgrades - Deploy latest Solidity code without modifications - True EVM equivalence with no delays This breakthrough enhances onboarding, security, and performance while proving skeptics wrong about zkEVM upgrade capabilities. [Learn more about the Fusaka upgrade](https://paragraph.com/@linea/ethereum-evolves-and-so-does-linea-introducing-the-fusaka-upgrade)