What is Smart Contract Audit?
A smart contract audit is a professional review of contract code by security firms looking for vulnerabilities, logic bugs and economic attack vectors. An audit reduces risk but doesn't guarantee safety — many audited protocols have still been exploited.
Why Smart Contract Audit matters
Understanding Smart Contract Audit is part of building a solid mental model of how Bitcoin, blockchain and Web3 systems actually work. Concepts in the Security category sit at the foundation of the broader stack — get them right and the rest is far easier.
Learn this interactively
Reading the definition is a start. ZeroToBlock teaches concepts like Smart Contract Audit through hands-on, browser-based simulations. Build the mental model by actually using it:
- Bitcoin 101 — interactive fundamentals course
- Bitcoin Proof of Work — mining, hashing and consensus
- Browse all interactive blockchain courses
Related terms
- Smart Contract — Code on a blockchain that automatically enforces its rules.
- Solidity — The most popular programming language for Ethereum smart contracts.
- Scam (Crypto Scams) — Common fraud patterns targeting crypto users.
More security terms
- Seed Phrase — A human-readable backup of a wallet's private keys.
- Wallet — Software or hardware that manages your private keys.
- 51% Attack — An attack where one party controls majority hash power.
- Cold Storage — Keeping private keys offline for security.
- Custody — Who controls the private keys.
- Slashing — Destroying part of a validator's stake as punishment.
- Multi-Signature (Multisig) — A wallet requiring multiple keys to spend.
- Hardware Wallet — A dedicated device that signs transactions offline.
Keep exploring
Continue with the full blockchain glossary — 136 terms in total — or read the developer blog and FAQ for deeper context.