The SEC informed companies they may have disclosure obligations related to how recent challenges in the crypto market have affected them, directly or indirectly, the SEC said Thursday in a post on its website, alongside a sample letter it will send to companies.“To the extent material, explain whether these crypto assets serve as collateral for any loan, margin, rehypothecation, or other similar activities to which you or your affiliates are a party.”“Describe any material risks to your business from the possibility of regulatory developments related to crypto assets and crypto asset markets,” another query said.FTX, which as recently as early November, was one of the world’s largest crypto exchanges, may have more than 1 million creditors, according to bankruptcy filings.Several crypto companies were tossed into turmoil following FTX’s bankruptcy, including BlockFi, which also subsequently filed for bankruptcy.FTX founder and former CEO Sam Bankman-Fried announced Friday he would testify Tuesday in front of the House Financial Services Committee, specifically addressing “FTX US's solvency and American customers, ... pathways that could return value to users internationally, ... what I think led to the crash ... [and] my own failings.”Lawmakers said Thursday that they planned to subpoena him if he declined to show up to the hearings in person."