Adam Back Lies About SPAC Collapse, Greg Maxwell’s Role in Chris Cook Origins Adam Back refuses to answer questions about Christopher Cook and Blockstream's 20% yields promised to investors, why? Greg Maxwell's link to Cook and more. NatInfoSec.com Jul 09, 2026 TLDR: A convicted fraudster, Christopher Cook, secretly controls billions in investor funds at Blockstream. The money, some of it raised on the promise of 20% interest, circulates among a ring of related parties, and there's no proof the Bitcoin owed to investors actually exists or can be repaid. Adam Back has refused to answer investors' pointed questions about fraud and Bitcoin custody, and has helped conceal the scale of Cook's wealth from Blockstream's own employees. The behind-the-scenes story of why Adam Back's SPAC just collapsed.