The best metal seed backup is not the one with the most dramatic fire claim. It is the simplest device that keeps every mark legible after heat, corrosion and crushing—and that you can fill in correctly without exposing the phrase. We do not make or sell backup products. Some links may earn a commission. Availability and published prices were checked in August 2026. … [Read more...] about Best Metal Seed Phrase Backups in 2026
Articles — Seed Phrases, Wallets & Self-Custody
Crypto Wallet Security Checklist: A 30-Minute Audit
A wallet security audit is not a hunt for the most advanced device. It is a search for the one event that can still cost you everything. Thirty focused minutes can find most of those events before an attacker, a fire or your future self does. This checklist asks for no address, balance, seed phrase, private key or passphrase. No legitimate audit tool needs any of … [Read more...] about Crypto Wallet Security Checklist: A 30-Minute Audit
Best Crypto Wallets for Self-Custody in 2026
The best crypto wallet is not an app. It is an arrangement: where the keys live, what screen you trust, how recovery works, and which failure you have decided to tolerate. A polished app with the wrong custody model is still the wrong wallet. We do not make or sell wallets or anything else. Some links may earn a commission. Prices and product capabilities were checked in … [Read more...] about Best Crypto Wallets for Self-Custody in 2026
Post-Quantum Readiness, Chain by Chain: The Honest List
"Quantum-resistant" is an unregulated marketing term. Nobody audits it, search engines reward it, and the gap between chains that say it and chains that are it is now wide enough to mislead real money. This page sorts six chains not by their claims but by one question: if a large quantum computer existed tomorrow, what would actually stand? The test throughout is simple … [Read more...] about Post-Quantum Readiness, Chain by Chain: The Honest List
What a Quantum Computer Could Actually Break
Nearly every claim about quantum computers and cryptocurrency traces back to two algorithms: Shor's (1994) and Grover's (1996). They are routinely bundled together as "quantum computers break crypto", which hides the single most useful fact in this field: they have wildly different power. Shor's algorithm destroys the mathematics behind today's signatures. Grover's only … [Read more...] about What a Quantum Computer Could Actually Break
Dead Man’s Switches for Crypto: What Actually Works
A dead man's switch releases access to your crypto if you stop checking in. The appeal is obvious: no trusted person, no sealed envelope, no lawyer — the system simply notices you are gone and acts. The appeal is also where the trouble starts, because every implementation has to answer a question that has no clean answer: how does a machine tell "dead" from "on holiday … [Read more...] about Dead Man’s Switches for Crypto: What Actually Works
Writing Crypto Instructions Your Heirs Can Actually Follow
The document that actually decides whether your crypto is inherited is not your will. It is a short, plain-language set of instructions written for someone who does not know what a wallet is, will read it while grieving, and cannot ask you a single question. Almost nobody writes one. Of those who do, most write it for a version of their heir who already understands crypto … [Read more...] about Writing Crypto Instructions Your Heirs Can Actually Follow
Multisig for Inheritance: The Strongest Option and Its Hidden Trap
A multisig wallet requires several independent keys to authorise a transaction — typically "2 of 3", meaning three keys exist and any two can spend. It is the strongest answer to the inheritance problem, because it is the only arrangement where no single person can steal the funds and no single loss destroys them. It is also the most demanding thing on this site, and … [Read more...] about Multisig for Inheritance: The Strongest Option and Its Hidden Trap
What Happens to Your Crypto When You Die
Nothing automatic happens. There is no beneficiary field on a blockchain, no next-of-kin process, and no institution to notify. If nobody can find and use your keys, the coins stay where they are — visible on the chain, permanently unspendable. That is the whole problem, and it is a design consequence rather than an oversight. Self-custody means no third party can move … [Read more...] about What Happens to Your Crypto When You Die
Address Poisoning: The Theft That Needs No Malware
Address poisoning is a theft that requires no malware, no phishing site and no access to your wallet. The attacker simply puts a lookalike address into your transaction history and waits for you to copy the wrong one. It works because of two ordinary habits: wallets display addresses truncated to the first and last few characters, and people copy addresses from their own … [Read more...] about Address Poisoning: The Theft That Needs No Malware