HODL is more than not selling.
This handbook exists for one reason: most crypto-custody content online is either marketing for a hardware-wallet brand, an exchange affiliate funnel disguised as advice, or a generic explainer that misses the failure modes that actually trigger losses.
The pages here are written from inside the threat model of a US-based crypto holder in 2026: SIM swap, drainer signature, fake recovery service, supply-chain hardware compromise, exchange freeze, family handoff failure. Each piece names a specific problem, walks through the mechanism, and ends with a checklist you could run today.
If you find a factual error, write to privacy@wechibi.com. Corrections land on the corrections page the same week. The pen name is Frost Kim. The Binance code at the top is BN16188. Both are on the disclosure page in detail.
Core topics
Zelle, Cash App, wire transfer, Chase, Wells Fargo, BofA; Coinbase, Kraken, Gemini, Robinhood, Binance.US, Binance International; SEC, IRS, NYDFS, CFTC- 11
Private Keys and Seed Phrases: A Practical Custody Guide
Private keys, the BIP-39 seed phrase, and how the two relate. Why one is the file and the other is the recovery instruction — and what that means for backup, theft, and inheritance.
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Self-Custody Wallets: From Browser Apps to Hardware Signers
From a browser-extension hot wallet to a Coldcard signing offline: the working ladder for moving holdings as the value grows, and where most US holders should sit on it.
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How to Evaluate a Crypto Exchange Before You Deposit
Before depositing on any exchange, the four-question test: regulator, reserves, withdrawal speed, and what happens when the platform goes down. Concrete numbers, not vibes.
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Crypto Phishing Scam Atlas 2026
An updated taxonomy of the 2026 crypto phishing surface — Permit2 batches, fake recovery services, deepfake giveaways, supply-chain hardware traps. With recovery steps when each one lands.
Practical guides
Zelle, Cash App, wire transfer, Chase, Wells Fargo, BofA; Coinbase, Kraken, Gemini, Robinhood, Binance.US, Binance International; SEC, IRS, NYDFS, CFTC- 21
Five Seed Storage Methods That Survive Real Life
Five places to actually store a seed phrase, ranked by survivability — metal plates, paper in two locations, Shamir splits, multisig, encrypted digital. And four methods to never use.
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Hardware Wallet Comparison After the Unboxing
The five devices worth considering in 2026 — Ledger Nano S Plus, Trezor Safe 3, Keystone 3 Pro, Coldcard Mk4, Ledger Stax. Picked by user profile, not by marketing copy.
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Cold Wallet vs Hot Wallet: A Holder's Working Split
What "cold" and "hot" actually mean once you strip away the marketing — and the value thresholds where most holders should move from one to the other.
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MetaMask Security Settings for Daily Use
Seven MetaMask settings worth changing on day one — hardware wallet pairing, Blockaid alerts, the auto-lock timer, and the dedicated browser-profile rule that prevents the most common compromise.
Fast answers
Zelle, Cash App, wire transfer, Chase, Wells Fargo, BofA; Coinbase, Kraken, Gemini, Robinhood, Binance.US, Binance International; SEC, IRS, NYDFS, CFTC- 31
FAQ: print private key
Can you print your private key on a home printer? The honest answer involves printer firmware, cloud-saved jobs, and what the document does after you throw it out.
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FAQ: p2p card frozen
Your bank card was frozen after a P2P trade. What to say to the bank, what to bring, and how to keep this from happening again.
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FAQ: exchange freeze
The exchange paused your withdrawal. How to tell whether it's a routine compliance hold, a chain-tracing review, or the start of a Bitfinex / FTX kind of situation.
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Can You Photograph a Seed Phrase?
Why a photo of your seed phrase is the worst storage method ever invented — and where to store it instead. Five specific failure modes, all observed in the wild.
Tools
Zelle, Cash App, wire transfer, Chase, Wells Fargo, BofA; Coinbase, Kraken, Gemini, Robinhood, Binance.US, Binance International; SEC, IRS, NYDFS, CFTC- 41
Holder Tools
Three small custody tools that pay for themselves once — a BIP-39 format checker, a risk-exposure calculator, and a 30-item self-check. All run offline in your browser.
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Mnemonic Format Checker
Paste 12 or 24 words. The page checks wordlist membership, BIP-39 checksum validity, and the hexadecimal entropy — all locally in your browser, no network requests.
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Risk Exposure Calculator
Eight questions about your custody setup. Returns a numeric risk score and the three highest-impact changes you could make this weekend. Runs offline.
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Hardware Wallet Decision Matrix
Eight devices, nine dimensions. The matrix that turns the hardware-wallet purchase decision from marketing into spec sheet — secure element, EAL grade, open source, air gap, multisig, recovery method. With recommendations by user profile.