01
DEX vs CEX: What's the Difference and Which Should You Use? (2026)
A CEX holds your funds and gives you an account; a DEX connects to your wallet and holds nothing. The real difference is who is responsible when things go wrong.
Beginner · Exchange guides · Coin basics · Security
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bsvar walks you through signing up, buying and withdrawing on major exchanges, understanding coins and Web3, and avoiding common scams — in clear, practical guides.
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Fake Support Scams: Six Tells That Never Change (2026)
Real support never contacts you first, never asks for a code, and never needs remote access. Six tells, plus what to do if you already engaged.
03
Address Poisoning: Why the Address You Copied Was Wrong (2026)
Attackers plant a lookalike address in your own transaction history and wait for you to copy it. One rule defeats it completely.
04
How to Use a Block Explorer to Check Any Transaction (2026)
A block explorer is a public search engine for a blockchain. How to find your TXID, pick the right explorer, and read every field that matters.
05
How Exchange Withdrawal Fees Actually Work — and How to Pay Less (2026)
Withdrawal fees are set by the exchange and are usually flat per network, not a percentage — which changes how you should batch and route transfers.
06
Binance Account Restricted or Locked? Tell the Two Apart First (2026)
Restricted, under review and disabled are different states with different fixes. Read the exact wording first, then follow the matching route.
07
Withdrawal Address Whitelist: The Setting That Stops the Costliest Mistake (2026)
A whitelist limits withdrawals to addresses you approved in advance — so a stolen password and 2FA code still are not enough.