Magazine · Tag
#Security
- Security & custody · · 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.
- Basics · · 12 min readBitcoin Addresses Explained: bc1q, bc1p, 3 and 1Bitcoin addresses explained: what 1…, 3…, bc1q… and bc1p… mean, which format saves fees and how to check an address properly before you send.
- Security & custody · · 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.
- Basics · · 14 min readThe 15 Most Common Bitcoin Myths Fact-CheckedBitcoin myths fact-checked: criminals, bubble, climate, bans, quantum computers, taxes. 15 misconceptions checked with figures and sources.
- Buying & saving · · 13 min readBuying Peer-to-Peer: Bisq, HodlHodl & Co.Buying bitcoin P2P with Bisq, HodlHodl, RoboSats and Peach: how the platforms secure a trade, a trade step by step, premiums and risks.
- Security & custody · · 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.
- Treasury companies · · 12 min readCoinbase: Bitcoin Custodian and Exchange OperatorCoinbase is an exchange, custodian of most US bitcoin ETFs and a bitcoin holder itself. What the concentration risk and the 2025 data leak mean for you.
- Security & custody · · 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.
- Mining & technology · · 13 min readWhat Comes After the Last Halving? Fees as the Incentive ModelThe last bitcoin is created around 2140, then only fees pay miners. How big the gap is today, what can close it and why there is still time.
- Power Law · · 12 min readWhy the Floor Never Reaches ZeroWhy the Power Law floor rises every day and never falls to zero, what that means for the bitcoin price and what not, and how far below it the price fell.
- Security & custody · · 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.
- Basics · · 13 min readProof of Work Explained SimplyProof of work explained simply: why Bitcoin needs computing work, how the hash lottery works and how it differs from proof of stake.
- Mining & technology · · 14 min readQuantum Computers and Bitcoin: How Big Is the Threat?Quantum computers and Bitcoin: which coins are really at risk, how far the technology is, what developers plan and what you can do today.
- Security & custody · · 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.
- Security & custody · · 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.
- Security & custody · · 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.
- Mining & technology · · 13 min readStratum V2: The New Mining ProtocolStratum V2 explained: encryption against hashrate theft, miners building their own block templates, less traffic and what it means for home miners.
- Security & custody · · 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.
- Security & custody · · 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.
- Security & custody · · 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.
- Security & custody · · 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.
- Security & custody · · 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.