Cara Mencabut Persetujuan Token di MetaMask dan Rabby Wallet (2026)
Setiap kali Anda berinteraksi dengan aplikasi terdesentralisasi — menukar token, menyediakan likuiditas, mencetak NFT — Anda hampir pasti menandatangani persetujuan token. Persetujuan itu memberi izin kepada smart contract untuk memindahkan token Anda atas nama Anda, sering kali tanpa batas pengeluaran dan tanpa tanggal kadaluarsa. Jika kontrak tersebut kemudian dieksploitasi, diperbarui ke versi jahat, atau sekadar […]
How to Revoke Token Approvals on MetaMask and Rabby Wallet (2026)
Every time you interact with a decentralized application — swapping tokens, providing liquidity, minting an NFT — you almost certainly signed a token approval. That approval grants a smart contract permission to move your tokens on your behalf, often with no spending limit and no expiration date. If that contract is later exploited, upgraded to […]
Apa Itu Seed Phrase dan Cara Menyimpannya dengan Aman (2026)
Jika Anda kehilangan akses ke dompet crypto Anda — baik karena perangkat rusak, PIN terlupakan, atau reset pabrik — seed phrase Anda adalah satu-satunya yang berdiri di antara Anda dan kerugian dana yang permanen. Namun, kebanyakan orang yang menyiapkan dompet untuk pertama kalinya memperlakukan rangkaian kata 12 atau 24 ini seperti sandi sekali pakai. Artikel […]
What Is a Seed Phrase and How to Store It Safely (2026)
If you lose access to your crypto wallet — whether through a broken device, forgotten PIN, or factory reset — your seed phrase is the only thing standing between you and permanent loss of funds. Yet most people who set up a wallet for the first time treat this 12- or 24-word string like a […]
Two-Factor Authentication for Crypto (2026): The Complete Guide
If you take only one security step on your crypto exchange account, make it two-factor authentication. The vast majority of stolen retail crypto accounts in the past five years had no 2FA or had the weakest form of 2FA — text-message codes. The fix takes ten minutes and reduces your risk of account takeover by […]
Private Key vs Seed Phrase: What’s the Difference? (2026)
What Is a Private Key? A private key is a 256-bit number — in practice, a string of 64 hexadecimal characters — that cryptographically proves ownership of a specific blockchain address and authorises transactions from it. A raw private key looks like this: “ e9873d79c6d87dc0fb6a5778633389f4453213303da61f20bd67fc233aa33262 ` Every wallet address on Ethereum, Bitcoin, or any similar […]
Crypto Phishing Attacks: How to Recognise and Avoid Them (2026)
What Is Crypto Phishing? Phishing is a social engineering attack in which a criminal impersonates a trusted entity to trick you into revealing sensitive information or taking an action that compromises your security. In traditional banking, phishing targets passwords and account numbers. In crypto, phishing targets: Seed phrases and private keys — the master credentials […]
How to Store Your Seed Phrase Safely (2026): Complete Guide
What Is a Seed Phrase and Why It Controls Everything When you set up a self-custody wallet — whether that is a hardware wallet like a Ledger or Trezor, or a software wallet like MetaMask — the wallet generates a seed phrase: a sequence of either 12 or 24 common English words drawn from a […]
Crypto Scams (2026): How to Spot and Avoid Every Type
Giveaway Scams How They Work Giveaway scams are one of the oldest tricks in the crypto playbook and remain devastatingly effective. The formula is simple: a fake account impersonating a celebrity (Elon Musk, Vitalik Buterin, Michael Saylor), a crypto exchange (Coinbase, Binance), or a blockchain project announces a “limited time giveaway” — send 0.5 ETH […]
How to Keep Your Crypto Safe (2026): Complete Security Guide
The Golden Rules of Crypto Security Before diving into specific tools and tactics, three rules govern everything else. Violate any of them and no amount of clever security will save you. Not Your Keys, Not Your Coins This phrase has been repeated so often it has become a cliché — but it remains the most […]
How to Store Bitcoin Safely (2026): Cold Storage vs Hot Wallets
Understanding Bitcoin Wallets A Bitcoin wallet doesn’t store Bitcoin itself — Bitcoin lives on the blockchain. What a wallet stores is the private key that proves ownership and authorises transactions. Anyone who holds your private key can spend your Bitcoin. Anyone who holds your seed phrase (the 12 or 24-word backup) can regenerate your private […]
DeFi Risks Explained (2026): What Can Go Wrong and How to Stay Safe
Smart Contract Risk What It Is Every DeFi protocol is a set of smart contracts — code deployed on a blockchain. Smart contracts execute automatically according to their programming. If the code contains a vulnerability, an attacker can exploit it to drain funds. Unlike traditional software bugs, smart contract exploits are often irreversible. There’s no […]