Crypto Training

Crypto Training for web3 security engineering, Solidity, and EVM internals.

Practical writeups and checklists: secure contract design, audit heuristics, Solidity gotchas, MEV and mempool threat models, bridges, and the tooling that catches bugs before mainnet does.

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Bias

adversarial thinking, liveness-aware

Focus

Solidity, EVM, DeFi, bridges, MEV

Aim

audit intuition you can apply tomorrow

Latest

New posts drop as soon as they are useful.

All posts

Lido34 min

Crypto Training|2026-04-23

stVaults Liquidation Manager: Borrowing Against Lido V3 Without Pre-Minting stETH

A deep technical walkthrough of a liquidation manager that lets institutions pledge a Lido V3 stVault to AAVE v4 as collateral — where stETH is minted only during liquidation, not before. Six immutable contracts, a composite capacity oracle, a drain-proof role graph, and the attack surface of each.

AAVE25 min

Crypto Training|2026-03-10

AAVE v4: Hub and Spoke, Dual-Stream Interest, and Versioned Risk

A tour through AAVE v4's architecture — what changed from v3, why it changed, and the parts that are genuinely new: the Hub/Spoke split, dual-stream interest accrual, versioned risk configs, target-HF liquidations, and the Dutch-auction bonus. For integrators, auditors, and anyone building a custom Spoke.

DeFi45 min

Crypto Training|2026-03-04

Bonding Curves: The Math, the Protocols, and the Money

A comprehensive deep dive into bonding curves — from the integral calculus behind pricing to 17 real protocols (Uniswap, Curve, Balancer, Bancor, Friend.tech, Intuition, pump.fun, VRGDA, and more). How each curve shapes incentives, who benefits, and what breaks.

EIP4 min

Crypto Training|2026-03-03

A Decade of Account Abstraction, Finally Solved? EIP-8141 in 5 Minutes

Vitalik’s 2026 account abstraction thread reframes EIP-8141 as a minimal protocol primitive: frame transactions with sender and gas-payer authorization. Here is the short, practical breakdown.