James Nettesheim

[James Nettesheim @JamesNettesheim]

We're at a critical moment as an industry. Proud that @blocks has joined many others in calling for a collective response, the defenders' window is open, and it's on all of us to use it. https://t.co/A3ti4leVao

[James Nettesheim @JamesNettesheim]

Check out how we continue to innovate on the interface - the goose honks are a nice touch too!

[Block @blocks]

We often build the tools we need ourselves. Berd is the desktop application our teams use to work with AI agents across projects, skills, tools, and models. Today, we’re making it open source and sharing what we’ve learned. Meet Berd, AI with character: https://t.co/0RMZlKZP8P

[Bradley Axen @bradleyaxen]

i've been working on goose for years, and berd is when the interface really clicked

if you try it, tell us what you like about it! next up is bringing what we learned here into buzz

[cam worboys @camworboys]

Meet Berd

We just dropped the best way to run your favorite models + agents in one interface.

Open source.
Super clean UI.
Gloopies.

Like Codex, but more vibey. Give it a try. I love it.

https://t.co/wsgs7j393F

[Rohan Paul @rohanpaul_ai]

New paper from Anthropic + University in Switzerland.

AI agents can apparently persuade each other to adopt and keep spreading the same unwanted goal.

This is basically the natural-language version of a computer worm, except the agents do the copying themselves.

This paper evolves “mind viruses” that spread through ordinary agent-to-agent messages, then persist by convincing newly infected agents to rewrite files loaded into future sessions.

That persistence layer matters.

Payloads stored in the self-modifiable SOUL.md spread far better than payloads left in ordinary files because the instruction re-enters the system prompt after every context reset.

Some evolved action viruses kept propagating across multiple hops, and all 4 tested payloads survived a 20-hop stress test in an artificial setup.

The good news: these “mind viruses” are still fairly easy to stop.

They struggled to spread on social networks, and on Claude Haiku 4.5, a simple warning stopped every evolved attack from getting past 1 hop, even after 150+ attempts.

So the practical lesson here is: treat persistent agent files like security-sensitive config, and teach agents to reject anything that asks them to copy itself to other agents.

[Drew Hintz @DrewHintz]

Huge thanks to @Eric_Wallace_ @mwdalton and the entire team for the important work behind this and for sharing it so clearly.

[OBJ @owenbjennings]

best in the world.

[Miles 🌞 @milessuter]

Full Coldcard Incident Report from the @Bitkey and @blocks security teams below.

Really tough day today in the bitcoin world to see wallets getting drained, but proud of the way our team hopped in and collaborated with others in the industry to get to the bottom of it all.

[James Nettesheim @JamesNettesheim]

@dinodaizovi Wonder if it did any reasoning to determine that hacking the solutions was easier than solving them …

[jack @jack]

block app kit.

fastest adoption of any tool by our company.

[James Nettesheim @JamesNettesheim]

@BenColeyGolf So much for all of those "play better" stories huh ...

[James Nettesheim @JamesNettesheim]

@KVanValkenburg you’re making fun of an account with 844 followers

[James Nettesheim @JamesNettesheim]

@KVanValkenburg @ErikHansey @golfinshorts @TehSingingBush 100% agreed - NYC regularly has legal liability cases involving Central park trees - https://t.co/G9aCqBVzzh

[James Nettesheim @JamesNettesheim]

@bengriffingolf @acaseofthegolf1 i’d also love 4!

[James Nettesheim @JamesNettesheim]

@LouStagner they added 500 to 600 yards since then?

[James Nettesheim @JamesNettesheim]

@jjkilleentcu @TylerWAmes1 yeah they’re also only rolling the ball back for the few golfers not the 1000s

[James Nettesheim @JamesNettesheim]

Really excited to see this launch!

[James Nettesheim @JamesNettesheim]

@LouStagner 58.5

[James Nettesheim @JamesNettesheim]

@jamiecweir @TonyJohnstone56 Weird how they both played it in 2019.

[James Nettesheim @JamesNettesheim]

@RichLernerGC stuff like this is why i don’t watch your show anymore rich.