How to Actually Stop Wallet Drainers in 2026: Multi-Sig Isolation, Transaction Simulation, and Approval Hygiene

Wallet drainers became the most aggressive Web3 attack category of 2025-2026, fully SaaS-ified and industrialised. This post skips "be careful of phishing" and lays out a real three-layer defence — wallet tiering, signature simulation, and approval cleanup — with a monthly checklist you can actually execute.

Where Has Quantum-Resistant Cryptography Actually Reached? NIST Standardization, Onchain Practice, and Realistic Threat Assessment

In 2026 NIST's post-quantum cryptography standards are fully formalized, and core Bitcoin and Ethereum circles are actively debating migration paths. This piece unpacks what ML-KEM, ML-DSA, and SLH-DSA actually do, how real the "harvest now decrypt later" threat is, and when onchain systems should start moving.

Ledger and Trezor Mail Phishing in 2026: The Full Anatomy of Fake "Activation" Letters

The 2020 Ledger leak is still being weaponised — 2025 and 2026 saw large-scale impersonation of Ledger and Trezor activation emails and even physical letters. This post starts from where the data came from, dissects three signature attack patterns, lists detection details, gives an emergency response plan, and ends with a long-term defence stance.

Fake Browser Extension Cases of 2026: How Chrome Store Phishing Extensions Beat You and the Review Process

Multiple phishing extensions impersonating major wallets or security tools cleared Chrome Web Store review in 2025-2026, draining as much as 7.2M USD from a single user. This post unpacks three representative cases, the tricks that beat review, the discovery path, and a self-audit checklist for any future extension.

Are Passkey Wallets Safe in 2026? Coinbase Smart Wallet Attack Surface and Defense Boundaries

Passkey wallets are the centrepiece of the 2025-2026 wallet UX revolution, with Coinbase Smart Wallet as the largest adopter. This post skips the marketing and walks through five attack surfaces — key storage, device sync, social recovery, contract layer, UI deception — with concrete defense advice for different usage levels.

What Are the Most Common Smart Contract Vulnerabilities — and How Should Teams Defend Against Them?

Aggregate the publicly post-mortemed contract exploits from the past few years and a counterintuitive pattern emerges — most losses are not caused by exotic zero-days but by teams falling into the same old buckets over and over. This piece sorts the common faults into four categories — logic, economic, external dependencies, ops — and lists a defense checklist that is not complicated but blocks most accidents.

What Is a Smart Contract Audit, and Why Do Projects Always Need One?

A smart contract audit is the last checkpoint before code goes live. This guide explains what auditors actually look at, the most common vulnerability classes, audit firms versus self-review, and why "audited" never means absolutely safe.

How to Spot a Rug Pull: 8 Red Flags and a Due-Diligence Checklist

In 2023 there were hundreds of rug pulls on Solana alone, with an average lifespan under 48 hours. This guide breaks down the three main types, eight red flags, and a hands-on due-diligence routine using public tools.

MetaMask Phishing Defense: Common Attack Patterns and What Actually Works

In 2024, MetaMask users lost more than 500 million dollars to phishing combined. This article unpacks the three most common attack patterns, several real cases, what the wallet's built-in defenses actually catch, and the user-side habits that close the rest of the gap.

Hardware Wallet Supply Chain Attacks: Cases and Defenses

You think factory-sealed equals safe? A hardware wallet bought second-hand or from a non-official channel may have been tampered with before it ever reached you. This article covers the three typical supply chain attack patterns, real Ledger and Trezor cases, how to verify unboxing safety, and the purchasing channels worth trusting.

Crypto Asset Security Guide: 10 Iron Rules to Prevent Theft and Scams

Turn these few habits into muscle memory and you'll block the vast majority of scams and thefts aimed at retail users—a practical checklist for crypto asset security.