Magazine · Topic
Security & custody
Wallets, hardware wallets, seed words, multisig, and passing your bitcoin on to your heirs.
- · 13 min readAir-gapped Wallets: Who Are They Worth It For?Air-gapped wallets explained: signing by QR code or microSD, which attacks it stops, which it doesn't, and who the extra effort is worth it for.
- · 13 min readBitcoin Backups: The Minimal Secure SetupThe smallest Bitcoin backup that survives fire, theft, a lost device and your death: a setup per holding size, a checklist and common mistakes.
- · 13 min readThe Bitcoin Passphrase (25th Word) ExplainedBitcoin passphrase explained: how the 25th word protects your seed phrase, when it is worth it, how to back it up and which typo costs you everything.
- · 12 min readColdcard vs. Trezor vs. Bitbox02Coldcard, Trezor or BitBox02? Makers, secure element, air gap, multisig, passphrase, ease of use and prices of the three devices compared head to head.
- · 14 min readHardware Wallets Compared: Which One Fits Your Bitcoin?Hardware wallet comparison 2026: BitBox, Trezor, Coldcard, Jade, Passport and Ledger with prices in euros and francs. Find the device that fits you.
- · 13 min readStoring Your Seed Phrase Safely: Metal Backups and MistakesStore your seed phrase safely: which metal survives fire and water, how many copies you need, where to keep them and which mistakes cost bitcoin.
- · 14 min readSIM Swapping and How to Protect YourselfSIM swapping explained: how scammers take over your phone number, why bitcoin holders are targets and how authenticator apps and security keys protect you.
- · 12 min readSocial Engineering: The Biggest Threat to HoldersSocial engineering and Bitcoin: how attackers use fake support, phone calls and trust to make you send, and the three rules that protect you.
- · 14 min readHow to Spot Bitcoin Scams: The Most Common TricksHow to spot bitcoin scams: the 8 most common tricks, their warning signs and a 5-step check for any offer. Plus: what to do if it has happened to you.
- · 13 min readDiscretion and Physical Security for Bitcoin HoldersBitcoin physical security: where your holdings show, how to protect your data, mail and home, and what helps against extortion. With checklist.
- · 15 min readStoring Bitcoin Safely: The Complete Custody GuideStoring bitcoin safely: exchange, wallet app, hardware wallet or multisig? Which level suits your amount, how to back up your seed, mistakes to avoid.
- · 15 min readBitcoin Inheritance: How Your Family Gets Your CoinsPassing on bitcoin without losing it: emergency letter, seed storage, multisig, will and inheritance tax in Germany, Switzerland and Austria explained.
- · 13 min readHow to Set Up a Bitcoin Wallet: Your First Wallet Step by StepSet up a bitcoin wallet in 8 steps: choose the right wallet, write down your seed safely, test the backup and receive your first bitcoin from an exchange.
- · 11 min readCrypto Exchange Bankrupt: Lessons from Mt. Gox to FTXCrypto exchange bankrupt: what happened at Mt. Gox, Bitfinex, Quadriga, Celsius and FTX, what customers got back and how to protect your bitcoin.
- · 13 min readMultisig Wallet: More Security Through Several KeysMultisig wallet explained simply: how 2 of 3 keys protect your bitcoin, what you need to back up, what it costs and when it is worth it.