Citadel-backed firms sued the CFTC over its path for stock perpetuals, setting up a jurisdictional fight with the SEC over crypto-style derivatives.
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FBI attributes the $6B Binance hack to North Korea as Binance reopens withdrawals after $3.64B in net outflows in 9.5 hours.
Tether's CEO claims about 150,000 BTC, well above the 100,060 implied by its Q3 reserve report, a significant gap for a major stablecoin issuer.
CFTC now allows US exchanges to offer perpetual futures on individual stocks, a notable regulatory step.
Liquid's bitcoin peg is fully backed again after a $320M exploit, but the federation has not disclosed who paid to fill the gap.
A builder's post-mortem on a pricing engine for a 90-minute match-linked derivative: a unit test passed while the price was off by 26 points, and the fix exposed a free arbitrage.
Arbitrum's Security Council froze 8,426 ETH and 74.6M ARB in a Binance-linked wallet, and a walkthrough shows it moved funds without the holder's key.
ZachXBT published 11 addresses and a TRM Labs graph tracing $106M suspected stolen from an EU entity toward Monero and a Tron bridge.
Brazilian exchange Mercado Bitcoin halted withdrawals after a security incident; Hypernative attributes over $40M in outflows to it, while the exchange says no clients lost money.
Trail of Bits explains the cryptography behind e-voting and why paper ballots remain essential.
Chad Barraford explains why THORChain refused to block the $387M Bitget hacker's addresses, and the Tether freeze episode that followed.