News

Bitcoin-Seed selbst würfeln: Eine Anleitung
Rolling your own Bitcoin seed: A guide
Your seed is the foundation of your self-custody: All keys and addresses of your wallet are derived from it. Normally, your hardware wallet's random number generator creates it. But you... Read more...
The Best Bitcoin Hardware Wallets in 2026
Four brands, four routes, one goal. We compare the BitBox02, Trezor Safe, Foundation Passport and Ledger on usability, security and price. By the end you will know which device fits you, and why we no longer carry the Coldcard. Read more...
PPWR: Why we stop shipping to the EU effective immediately
The EU Packaging and Packaging Waste Regulation (PPWR) applies from 12 August 2026. Shipping to end users in other EU member states triggers obligations that, taken together, are not viable for us as a retailer. We are therefore pausing shipping to other EU countries with immediate effect. Shipping within Germany and to European countries outside the EU continues as normal. What changes on 12 August 2026 On 12 August 2026, the EU Packaging and Packaging Waste Regulation (PPWR), together with the German Packaging Law Implementation Act, replaces the previous German... Read more...
Coldcard Vulnerability: What You Need to Do Now
Updated 9 August 2026: The technical details are unchanged. The fixed firmware versions, the affected models and the entropy estimates still match Coinkite's advisory as revised on 1 August. The formal technical review Coinkite announced has not been published yet. What we have updated are the figures on the outflows and a note on Coinkite's data retention. Coldcard maker Coinkite has issued a warning about a serious flaw in seed generation. Affected firmware used a predictable software fallback instead of the hardware random number generator. Seeds generated on a Coldcard... Read more...