LedgerX — one of the few corners of Sam Bankman-Fried's crumbled crypto empire that remain solvent — is preparing to make available $175 million for use in FTX's bankruptcy proceedings, according to people with knowledge of the matter.

In a letter to Treasury Secretary Janet Yellen, Sen. Sherrod Brown, D-Ohio, said regulators should have supervisory authority over crypto activity.

Revelations about the failed cryptocurrency exchange FTX's inroads into the banking system raise important questions about how limited the crypto crash really is.

The bankrupt cryptocurrency lender BlockFi will try to collect about $680 million it is owed by a part of Sam Bankman-Fried's failed crypto empire, a lawyer told the federal judge overseeing BlockFi's insolvency case.

Advisors overseeing the group's ruins have more broadly pointed to a potential commingling of digital assets, raising concerns about misuse of customer funds and making ties between the two firms a likely focus for regulators and investigators probing the collapse.

John Williams, the president of the Federal Reserve Bank of New York, praised the Fed's new guidelines for granting fintechs and other nonbanks access to the payment system. He also echoed calls for new rules to govern stablecoins and cryptocurrencies.

A blueprint for a shared ledger for digital money would include central bank digital currencies, bank deposits and e-money from companies like PayPal — but not unsupervised cryptocurrencies.

The cryptocurrency exchange Kraken has agreed to pay a little over $360,000 to settle allegations that it violated U.S. sanctions against Iran.

BlockFi filed for bankruptcy, the latest crypto firm to collapse in the wake of the crypto exchange FTX's rapid downfall. 

Sens. Elizabeth Warren and Sheldon Whitehouse, both Democrats, have asked the Justice Department not to pull any punches as it investigates and seeks to hold accountable the executives at FTX who contributed to the crypto company's demise.

The digital-asset brokerage Genesis is struggling to raise fresh cash for its lending unit, and it's warning potential investors that it may need to file for bankruptcy if its efforts fail, according to people with knowledge of the matter.

From a German bank seeking a more than $2 million payment to a Chinese investor requesting $21,000 of lost savings. Claimants around the world who were caught up in the epic collapse of FTX Group are beginning to appear in court filings.

Long before Sam Bankman-Fried's FTX cryptocurrency empire collapsed this month, it already was on the radar of federal prosecutors in Manhattan.

Sens.  Debbie Stabenow, D-Mich., the committee's chairman, and John Boozman, R-Ark., its ranking member, will need to revamp their legislation to oversee crypto, which was supported by FTX Chief Executive Sam Bankman-Fried.

SoFi Technologies was supposed to divest its digital-asset trading arm when it acquired Golden Pacific Bancorp, but Senate Democrats say the bank has instead expanded it.

Moves by cryptocurrency exchanges to reassure markets about their stability are having little effect on jittery users, who keep pulling funds from the venues.

A new report by the examiner of the bankrupt crypto lender Celsius Network details shortfalls in controls and operations at two of the company's product offerings related to digital assets it held in custody for customers, raising issues of whether and how these users can get reimbursed.

The collapse of the crypto empire founded by political megadonor Sam Bankman-Fried is being transformed into a new political battlefront as Republicans highlight links between Democrats and their onetime benefactor.

Kristin Johnson of the Commodity Futures Trading Commission urged crypto industry whistleblowers to come forward in the aftermath of FTX Group's implosion, saying tipsters have previously received millions of dollars for their help.