This is specifically about multi-vendor hardware wallets. Not about multisig in general. If your threat model is “what if this hardware wallet is lying to me,” buying a second brand and running them in a multisig does not inspect the first one. It just gives you another device to trust. Now that you can actually check what the signer did with the PSBT, that particular reason for multi-vendor hardware multisig is weaker. Collaborative custody is different. A service that holds one or two keys, handles inheritance, or takes the operational burden off someone who does not want full responsibility still has a real job. Those businesses exist for a reason and they are still useful. That is not the same thing as stacking three different hardware wallets because someone said different vendors are safer. The article is about the first case. Not the second.

SCOOP: Major U.S. banks are detecting unauthorized third-party AI agents inside customer accounts, including some attempting to take actions that appear to be independent of user instructions, sources told Axios. The findings have alarmed banking executives, who are racing to restrict access to their systems as AI moves at a velocity faster than financial institutions can respond, multiple industry and bank executives told Axios. Several banks are now preparing for worst-case and even “day after” scenarios, including how to rapidly secure or restore customer accounts if things go wrong, the people said. Several bank executives told Axios they're struggling to distinguish between human users and AI agents. One executive said banks also struggle to determine whether agents are authorized by customers or potentially operating without their permission, more akin to rogue agent behavior. Read my latest for Axios here: axios.com/2026/10/22/ai-agen…

JUST IN: NIC CARTER JUST SAID THERE’S ABSOLUTELY NOTHING YOU CAN DO TO PROTECT YOUR OWN #BITCOIN FROM QUANTUM "IF ANY AMOUNT OF BTC IS STOLEN, THE WHOLE SYSTEM COLLAPSES" "WHAT YOU DO ACTUALLY DOESN’T MATTER" "YOU WON'T HAVE THE VALUE OF YOUR BTC, BECAUSE BTC WON'T HAVE VALUE AT THAT POINT" THE ONLY THING YOU CAN DO IS "LOBBY DEVELOPERS TO MOVE AS FAST AS POSSIBLE" 👀

So yea about that new RCE in PHP, if it took me ~10min to find, you know it's already into some bad hands.

The 0.1 Bitcoin Lie

Bitcoin: Where Are We?! xitter.cf/i/broadcasts/1AKEmvaQk…

Is my Ledger safe, or is there a spy implant in it? Detecting a spy implant without cracking your device open is possible. I'm working on a device to make it cheap and easy, and will publish the PCB and specs so anyone will be able to build it. youtu.be/0tLgcshzErI