Cryptocurrency

Blockchain hashing, wallets and on-chain incidents. Clear-eyed coverage of how crypto works under the hood, the security trade-offs, and the hacks and exploits worth learning from.

BIP-39 Passphrase Setup: Hidden Wallet in 12 Steps [2026]

A 24-word seed phrase feels like the end of the security conversation. It isn’t. Anyone who finds that paper backup, photographs it, or coerces you into revealing it…
By Tom Vance · Sep 20, 2026

Bitcoin Quantum Risk: 7M BTC Exposed, BIP-360 Still Just a Proposal [2026]

A little over one-third of all bitcoin in circulation now sits in addresses that a sufficiently powerful quantum computer could theoretically drain, according to wallet-scanning research that has…
By Dr. Elena Marchetti · Sep 20, 2026

Crypto Wallet Security: 12 Steps After $713M Stolen [2026]

More than $3.4 billion in cryptocurrency was stolen in 2025, according to Chainalysis’s 2026 Crypto Crime Report, one of the worst years on record for theft. Of that…
By Dr. Heinrich Vogel · Sep 19, 2026

MEV Bot Yoink Beats Hacker to $7.8M rsETH Haul [2026]

A hacker spent effort setting up an exploit against a Safe smart-contract wallet on Ethereum. On September 15, 2026, the attack fired, and within the same block another…
By Laura Bennett · Sep 20, 2026

Cold Storage Seed Migration: Fix It in 12 Steps [2026]

Coinkite’s Coldcard wallet was supposed to be the paranoid option. It had two separate hardware random number generators, an air-gapped signing flow, and a five-year reputation as the…
By Dr. Heinrich Vogel · Sep 19, 2026

3rd Bitcoin Reorg in a Month: Top 2 Pools Hold 44% [2026]

Bitcoin’s blockchain briefly split in two on September 11, 2026, when SpiderPool and AntPool each mined a valid block at height 966,500 within seconds of each other. The…
By Ryan Cole · Sep 18, 2026

Safe Multisig Setup: 12 Steps After the $1.5B Bybit Hack [2026]

On February 21, 2025, Bybit’s engineers watched roughly $1.5 billion in ether leave a wallet that three separate people had approved. Every signer used a hardware wallet. Every…
By Dr. Heinrich Vogel · Sep 17, 2026

Coldcard Hack Drains $116M in 5-Year RNG Flaw [2026]

A hardware wallet is supposed to be the boring, reliable part of holding Bitcoin. Plug it in, generate a seed, keep the seed offline, sleep well. That premise…
By Priya Anand · Sep 18, 2026

Build a Flashbots Arbitrage Bot: 12 Steps, 90 Min [2026]

Every block on Ethereum leaves money on the table for whoever notices first. A price gap between two Uniswap pools, a liquidation that pays a bounty, a pending…
By Tom Vance · Sep 16, 2026

Nomic Bridge Bug Freezes 36% of Osmosis allBTC [2026]

A Bitcoin bridge exploit that most of the crypto market didn’t even notice as it happened is now reshaping how the Cosmos ecosystem talks about wrapped BTC. On…
By Daniel Roth · Sep 16, 2026

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