01
How to Revoke Token Approvals Safely (2026)
Understand wallet connections versus token allowances, inspect the spender and amount, and revoke risky ERC-20 or NFT approvals.
Beginner · Exchange guides · Coin basics · Security
Enter crypto
the safe way
bsvar walks you through signing up, buying and withdrawing on major exchanges, understanding coins and Web3, and avoiding common scams — in clear, practical guides.
Latest
RSS02
Seed Phrase Exposed? An Emergency Wallet Plan (2026)
What to do after a recovery phrase enters a phishing page, is seen by someone else, or is stored on a compromised device.
03
Crypto Transfer Not Arrived? Check the TXID First (2026)
Use a transaction hash to separate pending, successful, and failed transfers from exchange-crediting delays.
04
Sent USDT on the Wrong Network? How to Recover It (2026)
How to recover USDT sent to the wrong network: check the TXID, work out who controls the destination address, and follow the right route for your scenario.
05
The Complete OKX Guide for Beginners (2026)
A plain-English, step-by-step OKX guide for beginners: sign up, verify, deposit, buy and withdraw.
06
How to Buy Bitcoin: A Complete Beginner's Guide (2026)
A complete beginner's guide to buying Bitcoin in four simple steps.
07
Binance vs OKX: How to Choose Based on Fees and Availability
Compare Binance and OKX for your actual purchase and withdrawal route: regional access, payment method, trading fees, network charges and account controls.