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Saturday, September 12, 2026 · Global Edition
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L4 News

Security: Threats and Protection

Documented attack surfaces across contracts, bridges and users, with post-mortems of major losses and the habits preventing the most common thefts.

Two steel backup plates with letter tiles on dark slate
Security

How to make a wallet recovery plan

Losing a device should be a bad afternoon, not a catastrophe: offline backups in two media and two locations, a restore you have actually tested, and a path for…

Infographic of four stacked layers protecting an exchange account
Security

How to secure a crypto exchange account

Four settings do most of the work: app-based 2FA, an anti-phishing code, allowlisted withdrawal addresses, and an email address nobody else knows about.

Young man on a city sidewalk staring at his phone in dismay
Security

What is a rug pull, and how to spot one

The team takes the money and runs — through the liquidity pool, a hidden mint, or tokens you were never able to sell in the first place.

Unattended phone on a cafe table showing a wallet confirmation prompt
Security

How token approval scams work

The signature that lets a contract spend your tokens is convenient by design — and it is exactly what a fake 'claim your reward' page is built to collect.

Close-up of a phone screen showing a long demo wallet address string
Security

What is address poisoning?

Scammers seed your transaction history with look-alike addresses so that one careless copy-paste sends real money to them — and the usual check won't catch it.