NEW YORK — The company tasked with locking down the assets of the failed cryptocurrency exchange FTX said they’ve managed to recover and secure $740 million in assets so far, a fraction of the potential billions of dollars likely missing from the company’s coffers.

The numbers were disclosed on Wednesday in court filings by cryptocurrency custodial company BitGo, which FTX hired in the hours after the company filed for bankruptcy on November 11.

The biggest worry for many of FTX’s customers is they’ll never see their money again. FTX failed because its founder and former CEO Sam Bankman-Fried and his lieutenants used customer assets to make bets in Bankman-Fried’s trading firm, Alameda Research. Bankman-Fried was reportedly looking for upwards of $8 billion from new investors to repair the company’s balance sheet.

The $740 million figure is from Nov. 16, and since then additional assets have been steadily recovered.

The assets recovered by BitGo are now locked in what is known as “cold storage” in South Dakota, which means they’re cryptocurrencies stored on hard drives not connected to the Internet. BitGo provides what is known as “qualified custodian” services under South Dakotan state law. It’s basically the crypto equivalent of financial fiduciary, offering segregated accounts and other security services to lock down digital assets.

The assets recovered include not only Bitcoin and Ethereum, but also a collection of minor cryptocurrencies that vary in popularity, such as the Shiba Inu coin.

California-based BitGo has a history of recovering and securing assets. They were tasked with securing assets after the cryptocurrency exchange Mt. Gox failed in 2014. The company is also the custodian for the assets held by the government of El Salvador.