France’s crackdown on violent, wallet-targeting crimes linked to crypto ownership has intensified, with 88 individuals indicted — including 10 minors — in connection with wrench attacks. National prosecutors say 75 suspects are in pre-trial detention, in a wave of arrests tied to 12 cases overseen by specialized investigating judges at the Paris Judicial Court and monitored by the National Prosecutor’s Office for Organized Crime (PNACO). Wrench attacks are defined as the use of physical force to access a victim’s crypto wallet, often unfolding as home invasions, kidnappings or extortion attempts. PNACO data show a troubling rise in such incidents: 18 in 2024, 67 in 2025, and 47 already in 2026. Security firm CertiK noted a 75% increase in wrench-attacks worldwide in 2025 versus the prior year, underscoring a global expansion of this criminal tactic. The prosecutions, Perrée stressed, involve acts that are particularly serious due to both harm to individuals and the coercive methods use...
A new study from London Business School and Yale University challenges the notion that prediction markets reflect crowd wisdom. Focusing on Polymarket, the researchers argue that a small cadre of well-informed traders drives most price discovery on these platforms. According to the paper, roughly 3.5% of accounts generate the bulk of price discovery on Polymarket. The remaining majority trades actively but contributes little information; their losses tend to accrue to the informed minority. The study, authored by Roberto Gomez-Cram, Yunhan Guo, Theis Ingerslev Jensen, and Howard Kung and revised on April 25, relies on a sign-randomization approach that re-samples each account’s past trades 10,000 times to simulate profit and loss. “Prediction market accuracy thus reflects the wisdom of an informed minority, not the wisdom of the crowd.” Polymarket and other prediction markets have surged in crypto circles, with industry data suggesting monthly trading volumes commonly around $15 billio...