Security Stories
The latest security news and Bitcoin adoption stories from across Africa.
COLDCARD Mk3 Hack Explained: Entropy matters
A firmware flaw is draining Bitcoin from COLDCARD wallets, with losses mapped up to $70M. Here is what happened, and how to generate a truly secure seed phrase.
Bitcoin's Network-Level Security: (Early February 2026)
Right now (early Feb 2026), the network's hash rate is bouncing around 850–1,050 EH/s after those brutal U.S. winter storms knocked a bunch of miners offline. We saw dips down to 700-ish EH/s in spots, but it always claws back.
Bitcoin: Peer-to-Peer Cash, Not Just Digital Gold
The Bitcoin whitepaper calls it a peer-to-peer cash system. Yet many see only a store of value. In this piece, we explore why shifting to 'HODL + Spend + Replace' unlocks true potential, especially across Africa, where everyday use is already driving change.
What is Bitcoin Halving
Bitcoin halving is a scheduled event that reduces the number of new bitcoins created and earned by miners by half.