How to Create Web3 Wallets (MetaMask etc.) and Secure Connection

Fri, 05 Jun 2026 14:15:00 +0900

To buy NFTs or interact with DeFi, owning a Web3 wallet like MetaMask is mandatory. It acts as both your bank vault and your digital passport. We provide a step-by-step tutorial on setting up MetaMask and maintaining wallet safety.

What is MetaMask?

A software cryptocurrency wallet and browser extension designed to store Ethereum-compatible tokens and sign smart contract transactions.

Installation Tutorial

1. Download from Verified Sources

Avoid Google search ads (which often link to phishing sites). Navigate directly to metamask.io or install via official app stores.

Major Exchange Hacking Incident Updates and Security Upgrades

Thu, 15 Jan 2026 15:00:00 +0900

Hacks have plagued exchanges throughout crypto history. In response, cybersecurity measures have evolved. We analyze recent hacking vectors and detail the latest security technologies deployed by leading exchanges.

Modern Hacking Vectors

While legacy attacks targeted raw software code bugs, today’s hackers favor social engineering (spear phishing staff) and key management compromise (stealing shard backups).

Exchange Defense Upgrades

1. Multi-Party Computation (MPC) Key Management

Exchanges split private keys into multiple shards and store them in geographically separate secure servers, preventing single points of failure.

セキュリティ対策 on Mainnet.jp