Key Takeaways MARA Foundation opened Slipstream to the public on August 3, 2026, dropping its client code requirement. A Coldcard firmware flaw from March 2021 let hackers drain up to $88 million from about 500 wallets. Watch for updated Coldcard firmware guidance and further loss estimates as more addresses are checked. MARA Strips Away the Access Codes MARA Holdings, the Nasdaq-listed bitcoin miner and artificial intelligence (AI) infrastructure provider, formerly known as Marathon Digital, built the Slipstream service so people can send bitcoin transactions straight to its mining pool instead of broadcasting them to the public network. Most bitcoin transactions …


