Kalshi and Polymarket announced new restrictions on Monday aimed at limiting insider trading and market manipulation in prediction markets. Kalshi said it will bar political candidates from trading on their own campaigns and restrict people tied to college or pro sports, while Polymarket outlined broader bans for trading on stolen confidential information, illegal tips, or for users able to influence outcomes.

Resolv Labs said on Sunday that an exploit enabled an attacker to mint 50 million unbacked USR and forced the team to pause all protocol functions. PeckShield also reported an additional 30 million USR minted, while D2 Finance estimated the attacker extracted about $25 million as USR briefly traded as low as $0.025 on Curve before rebounding.

A Nevada state judge issued a 14-day temporary restraining order that blocks Kalshi from offering sports, election and entertainment event contracts in Nevada. The ruling said state regulators are reasonably likely to win their challenge that the contracts violate Nevada gambling laws, and the court set an April 3 hearing on a possible preliminary injunction.

CFTC staff issued a Friday notice answering FAQs on the agency's crypto-collateral pilot launched last year, outlining how futures commission merchants should begin accepting crypto margin. The guidance says participating firms must notify the Market Participants Division of their start date and, for the first three months, may take only Bitcoin, Ether, or stablecoins, with weekly reporting of total crypto held. It also sets capital charges at 20% for BTC and ETH positions and 2% for stablecoins, while limiting certain stablecoin uses and excluding crypto from uncleared swap collateral.

Ledger's Asia-Pacific lead Takatoshi Shibayama said a proposed United States block on third-party stablecoin yield products could encourage other jurisdictions such as Australia to allow such offerings. He noted that most issuers currently avoid paying yields to protect banks' interests but argued a US move could spark fresh talks between regulators and issuers abroad. Shibayama added that in Asia, major financial institutions are prioritizing tokenization and stablecoin issuance over direct crypto exposure, while asset managers remain more interested in launching crypto products.

Prediction market Kalshi filed a preemptive lawsuit in an Iowa federal court against Attorney General Brenna Bird and state gaming regulators, alleging a substantial risk of future enforcement over its sports event contracts. The firm argues that federal law and its status under the Commodity Futures Trading Commission shield it from Iowa gambling regulations, while several other U.S. states have brought or faced similar actions concerning whether its contracts constitute unlicensed gambling.

On March 9, Binance.US appointed compliance lawyer Stephen Gregory as its new CEO, succeeding Norman Reed, who moved into an advisory role. The exchange, which previously faced a Securities and Exchange Commission lawsuit that was dismissed with prejudice in May, signaled plans to grow its staking products and add services linked to decentralized finance and tokenized assets. Over the past year, the firm also restored U.S. dollar deposits and withdrawals and introduced new rewards, staking and referral offerings.

On Tuesday, Senator Angela Alsobrooks told a banking industry event that she is collaborating with Republican Senator Thom Tillis on a compromise to advance a key United States crypto market structure bill. She said both the crypto sector and banks will likely be "a little bit unhappy" as lawmakers tackle contentious issues such as banning stablecoin yield payments, which banking groups argue pose deposit flight risks.

Anthropic, developer of the Claude AI system, has sued the Trump administration and multiple US agencies after the Pentagon formally labeled the firm a military "supply chain risk" on March 3. The company is asking federal courts in California and Washington, D.C., to overturn both the Defense Department's designation and an order directing federal employees to stop using Claude, calling the government actions "unprecedented and unlawful." It argues the label followed its refusal to lift contractual limits on using Claude for lethal autonomous warfare and mass surveillance of Americans.