# Jonathan Goodman

Type: Person

Source: Cyber Intelligence Brief — https://getcyberbrief.com/entity/jonathan-goodman
Canonical HTML page: https://getcyberbrief.com/entity/jonathan-goodman

## Recent coverage (1 stories)

### Coldcard hack drains 1,367 BTC: predictable seed phrases expose $86M
2026-08-04 00:24:44 · Sentiment: Bearish · Impact: 7/10 · Sources: 2

The Coldcard vulnerability demonstrates how flawed random-number generation can compromise hardware wallets, a critical lesson for cryptographic security. Over 4,500 wallets lost $86M in Bitcoin as attackers reverse-engineered deterministic seed phrases. This ongoing breach forces a reevaluation of cold storage trust assumptions.
Full story: https://getcyberbrief.com/story/coldcard-hack-drains-1367-btc-predictable-seed-phrases

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