Crypto Security
A collection of 13 posts
How Do Hardware Wallets Work? Keys, Signing and Setup Explained
A hardware wallet keeps your private keys on a dedicated chip and signs transactions inside the device. How signing, PINs, seeds and passphrases work.
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Double Spending: What It Is and How Blockchains Stop It
Double spending means paying with the same coins twice. How Bitcoin and Ethereum block it, real 51% attacks, and how many confirmations to wait.
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Mt. Gox: what happened, and where creditor repayments stand in October 2026
Mt. Gox was a Tokyo bitcoin exchange that collapsed in 2014. On 16 Oct 2026 the trustee moved the repayment deadline to 31 Oct 2027.
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What Is Trezor? How the Hardware Wallet Works, and Which Model Fits You (2026)
Trezor is a hardware wallet that keeps crypto keys offline. Current Safe 3, 5 and 7 models, setup, backups, and what it does not protect against.
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How to set up two-factor authentication and keep a way back in
Turn on two-factor authentication, choose a method stronger than SMS and save backup codes before you lose your phone. Steps from Apple, Google and NIST.
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What Is a Hardware Wallet? How It Works and the 2026 Risks It Doesn't Cover
A hardware wallet keeps crypto private keys on a separate device and signs transactions inside it. How it works, how to set it up, and the 2026 failures.
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What is a paper wallet? How it works, the real risks, and safer options
A paper wallet is a private key and address printed on paper. How it is generated, where funds get lost, how to sweep one, and what to use instead.
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BEP20 Wallets in 2026: 9 Options for BNB Smart Chain
Any wallet that supports BNB Smart Chain (chain ID 56) holds BEP20 tokens. Nine software and hardware options, setup values and wrong-network fixes.
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Locked Liquidity in Crypto: What It Means, How to Verify It, and Where Locks Fail
Locked liquidity means LP tokens sit in a time-lock contract so a pool can't be drained. How to check a lock, and the risks a lock doesn't cover.
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Best Telegram Crypto Groups in 2026: Which Channels Are Worth Joining and How to Spot Scams
Which crypto Telegram channels are worth following, why signal-group win rates can't be trusted, and how to check a group before you join.
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Is Ripple (XRP) a Scam? How XRP Giveaway Scams Work and How to Avoid Them
XRP is a real asset; the giveaways are not. How fake Ripple giveaways and deepfakes work, the warning signs, and what to do if you sent XRP.
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How to Spot High-Potential Airdrops and Avoid Scams in 2026
A real airdrop never asks for your seed phrase, a fee or an unclear signature. How to vet one: rules, source, contract, separate wallet.
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How to Spot a Crypto Scam: 15 Red Flags and How to Protect Yourself (2026)
The 15 warning signs of a crypto scam, how the main schemes work, how to protect a wallet, and where to report fraud, using FBI, FTC and Chainalysis data.
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