Mining & Staking stories

Oct 31, 2026

b14g Bitcoin staking protocol loses $1.47 million in exploit

Bitcoin staking platform b14g suffered a $1.47 million exploit on October 31, losing approximately 97 million CORE tokens through zero-token withdrawal vulnerability. The protocol paused contracts and says staked BTC was unaffected.

Oct 31, 20262 sources

Aug 18, 2026

Cypherpunk Technologies acquires world's largest Zcash mining fleet for $33 million from Winklevoss Capital

Nasdaq-listed Cypherpunk Technologies purchased 4,902 mining machines from Winklevoss Capital for $33.33 million, giving the company approximately 18% of Zcash's total network mining power and establishing it as the largest Zcash miner globally.

Aug 18, 20265 sources

Top claims

▪Exchange partners froze approximately 9 million stolen CORE tokens linked to the b14g exploit attacker following the October 31, 2026 exploit of b14g
▪The attacker behind the October 31, 2026 b14g exploit exploited b14g by submitting 99 zero-value withdrawal requests against unfunded staking positions, which Core's staking contract interpreted as instructions to withdraw entire balances
▪Blockchain analytics firm Bitquery reported that the $1.47 million b14g exploit occurred at 09:29 UTC on October 31, 2026, draining 91 staking positions in a single transaction

Subtopics

Altcoins1 Bitcoin1 Bitcoin mining1 Breaking down Cypherpunk Technologies' valuation1 Crypto1 Crypto hacks1 Crypto investments1 Crypto security1 Cypherpunk Technologies' mission and business model1 DeFi1 DeFi exploits1 Input validation flaw1 Institutional crypto adoption1 Privacy coins1 Smart contract vulnerabilities1 Zcash1

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