Bitcoin Standard Treasury Company, or BSTR Holdings, ended its planned merger with Cantor Equity Partners I, abandoning a proposed public listing valued at roughly $4 billion. The Bitcoin treasury firm associated with Adam Back will remain private while reassessing its strategy, and Cantor said in August that BSTR owed the SPAC $15 million. Bloomberg also reported setbacks at other Back-linked ventures: Exacore, a Blockstream Mining partner, faces disputes over mining-equipment contracts, electricity bills and construction payments, while Liquid Network lost 4,000 BTC in a security breach. Attackers described the incident as a white-hat disclosure and returned 3,400 BTC, leaving Bitcoin worth about $47 million unreturned.