#CryptoSecurity101 – Basics of Security in the World of Cryptocurrencies

If you operate in the world of Web3, DeFi, NFTs, or airdrops, knowledge of security basics is an absolute necessity. Here are the key principles worth knowing:

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🔐 1. Rule number one: Never share your SEED PHRASE

• Seed phrase (e.g., 12 or 24 words) = the key to your cryptocurrencies.

• Even support from Metamask or Ledger will NEVER ask for it.

• Store it offline – preferably on paper or a special steel card (e.g., Cryptosteel).

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🧠 2. Be cautious when clicking links

• Beware of DMs on Discord, X (Twitter), or Telegram.

• Do not click on “airdrop claim,” “free mint,” “urgent alert” from unknown sources.

• Use the Web3 Antivirus or Pocket Universe plugin to analyze interactions with smart contracts.

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🧰 3. Secure your wallet:

• Use a hardware wallet (Ledger, Trezor) for larger amounts.

• Separate the wallet for mints/testnets from your main wallet.

• Create separate addresses for different projects (e.g., Metamask + Rabby Wallet).

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🔍 4. Always read what you sign

• Do not click “Sign” without understanding the transaction – it may be consent for transferring NFTs/tokens without your knowledge.

• Check interactions with contracts, e.g., through Etherscan or DeBank.

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🚨 5. Phishing and scam alerts

• Always check project domains (e.g., ENS = scam, instead of .eth)

• It’s best to add official project websites to your bookmarks.

• Check on ScamSniper or RugCheck before entering an unknown project.

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🔄 6. Revoke smart contract permissions regularly

• Use:

🔹 Revoke.cash

🔹 Etherscan Token Approvals

🔹 Debank Approval Manager

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🧠 7. Protect yourself mentally and emotionally

• Scammers operate on emotions: “only today,” “last chance,” “mistake in wallet” – do not panic!

• Always analyze calmly before taking any action.