David Barroso @lostinsecurity
I'm Winston Wolfe. I solve problems. Yersinia author. Founder, CounterCraft https://t.co/2RLFjoit1C @countercraftsec lostinsecurity.com San Sebastián Joined January 2009-
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Followers6K
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Following4K
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David Barroso retweeted
I’ve mentioned this before: this is one of the oncoming trains for corp-security. We’ve long failed at least-privilege, but weren’t often punished for it. Helen in HR (or Bob in accounts) didn’t know what to do with the extra perms they didn’t know they had. Their agents will.
Codex just found a “workaround” of not having sudo on my pc…
David Barroso retweeted
Earnings Before Tokens
David Barroso retweeted
glad to know Mythos' safety concerns have been addressed right as Anthropic also secured tens of billions in inference compute 👍
JUST IN: Anthropic announces it will roll out Claude Mythos “in the coming weeks” despite growing fears over the model’s cyber capabilities.
David Barroso retweeted
We've raised $65 billion in Series H funding at a $965 billion post-money valuation, led by @AltimeterCap, Dragoneer, @Greenoaks, and @sequoia. This investment will help us advance our research and expand our capacity to meet growing demand for Claude.
David Barroso retweeted
Opus 4.8 is live in Claude Code today. A few things worth knowing: 🧵
Introducing Claude Opus 4.8: it builds on Opus 4.7 with sharper judgment, more honesty about its own progress, and the ability to work independently for longer than its predecessors. Available today at the same price.
@soy_capo Si, 100% de acuerdo. Me refería al abuso de la palabra, no al hecho en sí.
Me parece excelente por fin discutir sobre tecnología en Europa, pero nos estamos pasando un poco usando las palabras 'soberanía digital,' 'soberana', etc. Muy similar a lo que ocurrió con 'cooperación público-privada' :)
David Barroso retweeted
Very interesting data across 2,444 companies. 82% of tokens are spent on AI-generated bugs, rework and review friction.
This is what we've been seeing with every company we work with. Try justifying spending 100k on token spend when only 18k even makes it to a stable prod feature. In the rush to maximize AI token spend, companies are wasting over 44% on bug fixes
David Barroso retweeted
GPT 5.5 found a 27-year-old RCE introduced in April of 1999. I've triple-checked the flow and commit history, it's real. Can't wait to responsibly disclose!
This
AI attackers have terrible OPSEC. Use it against them. Hallucinate exposed services. Waste their tokens. Seed prompt-injection traps, canaries, and honeytokens where attacker LLM will read them. Have fun.
David Barroso retweeted
Periodic reminder: the Shadow Brokers, masterful curators of one of the most devastating technical intelligence leaks ever, will turn ten years in August — and we still don't know who they were.
David Barroso retweeted
Google announces it will now prioritize AI-generated answers in search results over human-written website articles • Search will be centered around a reimagined ‘intelligent search box’ • Starts next Tuesday (via @TechCrunch)
David Barroso retweeted
I'm pleased to announce that, when combined with my phone, my PDP-11 has achieved a storage capacity of 128.01GB!
David Barroso retweeted
I made a /seppuku skill for my Claudes for when they make an unforgivable mistake, and now they use it spontaneously without me asking.
David Barroso retweeted
what in the black mirror episode is this
we’re hiring 10 Masturbation Consultants $2,000/month to test our new Daily Guided Masturbation feature and document the effects on stress, sleep and mood yes it’s real yes you get paid
David Barroso retweeted
I came across a theory that AI is starting to make more mistakes because the internet is increasingly polluted with AI slop. The idea of AI cannibalising itself into obscurity is one of my favourite things ever. I hope it is true and I hope it becomes impossible to fix.
David Barroso retweeted
JUST IN: Iran declares it will not charge tolls in the Strait of Hormuz, will instead charge “environmental protection fees”
David Barroso retweeted
Congratulations, Twitter is good again.
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