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Saturday, October 10, 2026 · Global Edition
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L4 News

Security: Threats and Protection

Security records how digital assets are lost: contract vulnerabilities, bridge failures, key compromise, malicious approvals, and social engineering that bypasses code entirely. Incident post-mortems sit alongside preventive practice. Intended for holders, protocol teams and compliance staff who want attacks described in enough detail to defend against them.

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

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.

Woman and adult son checking a website address on a smartphone
Security

How to verify a crypto website is real

Phishing sites copy the real thing down to the pixel — the only part they cannot copy is the domain, and one careful habit is enough to check it.