Ethereum Virtual Machine Internals – Part 1

Part two on EVM internals covers persistent contract Storage: how Solidity types map to 32-byte storage slots, SSTORE and SLOAD semantics, and the gas costs that make storage writes expensive.

Decentralized apps (dApps) run on blockchain networks like Ethereum, Solana, BSC, SUI, and Avalanche. Learn what dApps are, how they work, examples, and their advantages in Web3.

OtterSec's guide to ERC-4337 paymasters: how account abstraction enables gasless UX, common pitfalls in real-world implementations, and best practices for production-ready designs.

OtterSec deep dive into Aptos fungible assets: how the new model addresses legacy Coin flaws such as freeze/burn bypass, plus issues found and fixed in pre-release audits.

Six planning questions guide secure blockchain deployments, from understanding distributed ledger technology and smart contracts to baking security into designs that handle sensitive financial data.

Rattle is a Trail of Bits framework for analyzing Ethereum EVM bytecode directly, enabling independent security assessment of contracts without verified source.