Aug 4 — Hardware wallet hack, BlackRock tokenization, mining ban

QuantAlpha Digital Asset Update · Aug 3, 2026 · 3m

• A flaw in Coldcard's seed phrase generation drained ~1,200 addresses for $114M — the breach puts the core self-custody premise under direct pressure. • BlackRock launched tokenized money market products on blockchain rails — the world's largest asset manager entering tokenized cash reshapes how institutional liquidity and stablecoin backing may develop. • Trump Media moved 2,600+ BTC (~$165M) to Crypto.com while Strategy sold $105M in BTC and bought back $81M in preferred stock — two large holder moves that shift the demand picture in different directions.