4th Coldcard attack wave:
~448.7 BTC swept from 709 suspected addresses.
Some txs still unconfirmed users who control keys can try to replace with higher fees to save funds.
Vulnerable seeds from 2021 firmware bug; update doesn’t fix old seeds move funds now.
https://cointelegraph.com/news/suspected-4th-coldcard-attack-wave-sweeps-389-bitcoin-galaxys-thorn
Coldcard’s 5 years flaw exposes a testing gap:
Kraken’s CSO Nick Percoco says auditors checked the TRNG existed, but not that production firmware actually called it.
Result: weak RNG used for seeds since 2021, ~$90M stolen, 4,500+ addresses hit.
He’s calling for mandatory independent end‑to‑end entropy verification (like NIST/BSI standards) for all hardware wallets.
Trump linked miner American Bitcoin (ABTC) posts record Q2:
932 BTC mined, revenue +8% to ~$67M, net loss narrows to $57.2M (from $81.8M Q1).
$BTC reserve now ~8,002, shares near 52 week lows after 1 for 15 reverse split.
https://cointelegraph.com/news/trumps-american-bitcoin-output-narrower-q2-loss
Bernstein: If the CLARITY Act fails before the Senate’s August recess, expect a knee jerk crypto selloff and another leg down in valuations.
Odds now ~28–31% for 2026 passage.
Silver lining: SEC/CFTC could accelerate rulemaking under Project Crypto to backfill clarity.
https://cointelegraph.com/news/clarity-act-failure-crypto-valuations-lower-bernstein
Strategy (MSTR) sold 1,638 BTC (~$104.7M, avg $63,957) to fund STRC preferred dividends and buybacks.
USD reserve now $4B, BTC stack ~842,138.
Saylor says STRC repurchases totaled ~$81M and extended USD runway by 57 days to 2.3 years.
https://cointelegraph.com/news/strategy-sells-bitcoin-dividend-strc
BlackRock launches two tokenized money market funds (BSTBL on Ethereum, BRSRV multi‑chain) designed to qualify as GENIUS Act eligible reserve assets for US stablecoin issuers.
Both invest in cash, short‑term Treasurys and overnight repos, BRSRV auto reinvests dividends daily.
https://cointelegraph.com/news/blackrock-launches-tokenized-money-market-funds-stablecoin-reserves
Crypto Update: Russia Bans Mining, Coldcard Panic, Trump Media Sells BTC & BNB Chain Sues
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