Public iOS flaw can expose Bitcoin wallet files
A public iOS sandbox escape lets an installed app read other apps' files. Wallet secrets are at risk only when stored there, no theft has been confirmed, and Apple's latest notes do not name the flaw.
Understand Bitcoin. Put it into practice.
Bitcoin education, practical guides and sourced news. Explore wallets, self-custody, Lightning and the people building the ecosystem.
The library
Browse everythingExplainers
25What a thing is, assuming nothing. Start here if the words are new.
- What is a Bitcoin outpoint?
- What is a Bitcoin confirmation?
- What is a Bitcoin compact block?
- What is Bitcoin transaction locktime?
Guides
26Sit down and do one thing, with a way to check it worked.
- Decode a Bitcoin relative lock-time with Python
- Verify a Bitcoin signed message in Sparrow
- Test a Bitcoin transaction before broadcast with Bitcoin Core
- Label and export a Bitcoin wallet in Sparrow
Deep Dives
9The mechanism underneath, with the spec and the constants.
- The 2018 hash war, and what hashrate cannot decide
- Bitcoin has no balances, only unspent outputs
- How Bitcoin holds a ten-minute block interval
- The Lightning implementations, and how they differ
Features
13An argument, with the strongest version of the other side.
- The block size war, and what it settled
- Nobody is in charge of Bitcoin, which is the hard part
- Why You Should Accept Bitcoin at Your Beachfront Business
- Texas passes a Bitcoin reserve law: what changes