17 posts
Bitcoin Core merged support for Tor's proof-of-work defense mechanism on March 23, 2026. Nodes running as Tor hidden services can now automatically defend against denial-of-service attacks by requiring attackers to solve computational puzzles before connecting.
Bitcoin Core pull request #33043 proposes adding support for Codex32, a paper-based wallet backup scheme that lets users create, verify, and split seed backups using only pen, paper, and lookup tables. Unlike BIP39, Codex32 supports hand-computable checksums, Shamir secret sharing, and error correction without requiring electronics.
How attackers exploit Bitcoin's mempool protections to censor transactions, why Lightning Network is vulnerable, and the v3 transaction solution now live on mainnet.
A federal judge just froze 70.6 BTC held by institutional trading firm BlockFills. Here's what the case reveals about custody risk, multi-sig security, and why self-custody still beats even 'institutional-grade' platforms.
Bitcoin Core merged PR #34219 on March 4, 2026, adding pubkey validation for MuSig2 pubnonce and partial signatures in PSBT deserialization. This improves security for multisig wallet users and hardware wallet integration.
The emerging Bitcoin privacy protocol now caps recipient outputs at 2,323 per transaction, eliminating a scanning attack that could have delayed blocks by minutes.
Blockstream fixes signature verification bug that left bitcoin stuck in new Core Lightning nodes, plus payment crashes that shut down entire nodes
Jameson Lopp's proposal to force a mandatory migration away from ECDSA and Schnorr signatures just got its official BIP number. It includes a hard deadline to freeze un-migrated coins. The community is not happy.
Bitcoin Core 29.3 fixes a critical wallet migration bug that could delete entire directories, plus sighash caching for DoS defense and mining overflow patches
A newly standardized format for timelock-recovery plans lets Bitcoin users create pre-signed inheritance transactions with cancellation windows. Works with standard wallets today, no covenant soft forks required.
Foundry USA and AntPool now control nearly half of Bitcoin's hashrate. Stratum V2 and DATUM offer a way out, but will miners choose decentralization over convenience?
Moonwell lost $1.78M on Feb 15, 2026 due to an oracle misconfiguration in code partially written by Anthropic's Claude Opus 4.6. This marks the first major DeFi exploit directly linked to AI-generated smart contract code.
Nearly $440 billion in Bitcoin sits in vulnerable wallets that quantum computers could crack. The question isn't if quantum attackers will come. It's whether Bitcoin will freeze the coins first.
$2.16 billion lost since 2021. Ronin, Wormhole, Nomad. Different exploits, identical patterns. Sherlock's 2026 analysis reveals why we keep making the same mistakes.
Ledn closed the first asset-backed securities deal backed by Bitcoin collateral, raising $188M and earning an investment-grade rating. Bitcoin just entered the formal securitization market: the same machinery that packages mortgages and credit cards.
Transaction fees dropped from 7% to 1% of miner revenue after the 2024 halving. With the block subsidy halving every four years, Bitcoin's long-term security depends on fees replacing it. The data from 2024-2026 raises a serious question: is the fee market developing fast enough?
Quantum fears have entered crypto market narratives in early 2026, with ETF outflows and institutional risk assessments starting to mention quantum computing. But the actual technical picture is far more nuanced.