SIM swap attacks: why SMS 2FA is the weakest link in crypto
A SIM swap never touches your phone. It moves your number, then resets every account that trusts a text. What it reaches, and how to lock it down.
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Legacy, SegWit, or Taproot: which Bitcoin address type to use
Bitcoin addresses start with 1, 3, bc1q or bc1p. All of them send to each other, but the one you spend from can cut fees by more than a third.
Coin98 Super Wallet | September Sync 2026
This September, we focused on simple, practical upgrades for our users: a smarter way to check tokens before interacting with them, plus support for new network, token standard, and Web3 Name Services.
This Week in Crypto (September 28–October 5): A Senate Report Traces Iran's Money to USDT, 29,000 Jobs Price Out the October Hike, and Zano Rewinds a Month of Its Own Chain
If last week was about how money leaves an exchange, this week in crypto was about who gets to move it at all. A Senate report put USDT at the center of Iran's sanctions evasion, and Treasury went after Russia's A7 payments network three days later.
Watch-only wallets: track a portfolio without exposing any keys
A watch-only wallet shows a balance and holds no key. Four things it's genuinely good for, and the privacy limit nobody mentions.
One seed, many chains: how multichain accounts actually work
One seed phrase, a different address on almost every chain. Why that happens, and what to check when a restored wallet reads zero.
What is a honeypot token, and how do you spot one before you buy?
One wallet deployed 979 honeypot contracts in ten weeks. How the trap blocks your sell, and the four checks that catch it beforehand.