Crypto
What is a multisig wallet?
A multisig wallet needs more than one key to approve a transaction. Learn what a multisig wallet is, how the…
Liam Chen
Liam Chen writes about how crypto works at the protocol level — consensus, cryptography, wallets and security. He explains mechanisms plainly and cites primary sources.
Crypto
What is cold storage in crypto?
Cold storage in crypto means keeping your private keys offline. Learn what cold storage is, how it protects your coins,…
Crypto
What is a crypto bridge (and why they get hacked)?
A crypto bridge moves assets between blockchains by locking and minting wrapped tokens. Learn how a crypto bridge works, and…
Crypto
What is a Merkle tree?
A Merkle tree summarises many items into one hash. Learn what a Merkle tree is, how it is built from…
Crypto
What is a testnet?
A testnet is a practice copy of a blockchain where the coins have no value. Learn what a testnet is,…
Crypto
What is Layer 2 in crypto?
Layer 2 in crypto is a network built on top of a main blockchain to cut fees and boost speed.…
Crypto
What is a sidechain?
A sidechain is a separate blockchain linked to a main chain by a two-way bridge. Learn how a sidechain works,…
Crypto
Social engineering in crypto: the recurring patterns
Social engineering in crypto: the recurring scam patterns, the psychological levers behind them, and the defence habits that work across…
Crypto
What happens when an exchange is hacked
What happens when a crypto exchange is hacked: how breaches occur, who bears the loss, why deposit insurance rarely applies,…
Crypto
Rug pulls: the mechanics and the warning signs
Rug pulls explained: the mechanics behind liquidity removal, honeypots and slow rugs, plus the clear warning signs that help you…