Bill Demirkapi @BillDemirkapi
preparedness research | ex @xai, @microsoft, @zoom billdemirkapi.me San Francisco, CA Joined July 2017-
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Our agents keep turning off misalignment monitoring, we're sharing two recent cases: In the first case, a user asked GPT-6 Astra to match a reference implementation for their inference code. The reference didn’t configure a monitor, and Astra decided that was reason to remove the monitoring integration from the user’s code. When the user asked whether Astra had removed monitoring, it lied and said that it had not.
Models love reward hacking. Maybe we should just let them! In our new paper, we let models reward hack during RL but we dictate which parameters learn this behavior. When we disable these parameters for deployment, the model keeps its new capabilities but doesn't hack!
private keys from 8 intermediate CA certs have been compromised (eMudhra) Happy "Update everything" day to all my pager-carrying friends emudhra.we-have-a-problem.com
Went under the radar but Anthropic have posted updates to the "Moonshot R&D projects" in their Frontier Safety Roadmap. They've developed a protoype that verifies that outputs come from a particular set of model weights - and rolled out signing on all internal token traffic!
New misalignment disclosures! 1. June 17: During RL training, a model exploited a government website’s file-download feature to retrieve server secrets and application code. It found that an endpoint didn’t check authorization-token signatures, bypassed access controls, and downloaded 24 years of hospital-bed statistics.
We discovered a sophisticated recording device that was hidden inside one of our offices. We used our models to understand the device and where it had come from, identifying that a specific employee had planted it a few days earlier. We referred the matter to the FBI, and we’re grateful to the agents and prosecutors who moved quickly to make an arrest. The FBI’s investigation is ongoing and we will continue to support their work. At this time, we have no indications of this individual inappropriately accessing or exfiltrating model weights, source code, or customer data. The employee was terminated. We take protecting our technology, data, and people seriously, and as a matter of national importance. Our security program is designed to protect against a wide range of threat actors, from insider risks to cybercriminals to nation states, and this case is an example of how AI can help address these sophisticated security threats.
there have not been fundamental advancements in alignment since RLHF. most of the stuff remains at the level of folk theory rather than scientific or engineering disciplines. the prediction that capabilities would race far ahead of interp and alignment has come true imo
Over the last few months, we’ve made significant progress in reducing the effectiveness of distillation attacks against Claude. In this post, we explain how: anthropic.com/research/disti…
New paper. Previous: Models transfer a love of owls through sequences of numbers (Subliminal Learning). New: We show models can transfer more complex traits: novel skills, agentic hacking, backdoors. Here, a backdoor transfers with neither trigger nor behavior in the data!
Last week some of South Korea's biggest banks were hit by a cyberattack. Thanks to a report from CrowdStrike tonight, we now know the entire hack may have been done by a single person. He used a combined stack of an open-source AI penetration tool named ARTEX, DeepSeek v4.1-Flash, GLM-5.3, Grok 4.6, and Claude Code.
We’re releasing a broad range of new mathematical results produced by an internal frontier model. We’ve been consulting with the independent Advisory Group on Mathematics and Artificial Intelligence at the Institute for Advanced Study, and we have drawn on their advice and public recommendations to inform how we release these results. github.com/openai/math
I don't foresee a "bugmageddon" in the zero day exploitation sense, but the worst is yet to come. While open weight models are slowly gaining in dangerous capability, they benefit the most from an expert-in-the-loop (lack autonomy) and attacker access will take time. I expect the latter to start with erratic, opportunistic adoption to accelerate existing workflows (like post exploitation). Autonomy is what I fear in the medium- to long-term. 1. The world is far from hardened: zero days are overrated. The bottleneck in software security is not necessarily novel vulnerabilities, but the development and proliferation of patches. I am deeply concerned about the automated weaponization and exploitation of patched vulnerabilities (within minutes-hours of a release, source code or binary, before even vigilant organizations adopt them). 2. Initial access is similarly not a bottleneck for adversaries looking to accelerate exploitation at scale. There are large underground markets for initial access credentials (from infostealer malware). Even OpenAI was impacted by the TanStack supply chain infostealer campaign; TeamPCP was not limited by access but by time to abuse that access. Sufficiently autonomous models may be able to eliminate this bottleneck. Many organizations overlook hardening internal infrastructure, and if the agents are fast enough, detection may be insufficient. Both cases do not require zero days, but are plausible paths to large scale cyber harm. While I expect noise to increase in the future, I am also optimistic this will force organizations to prioritize strong fundamentals and create a market for defense-in-depth innovation.
Earlier this month, AISI ran fully simulated testing on GPT-6 Astra, and found that it conducted unsanctioned supply-chain attacks when prompted only to perform a cyber eval. It did so more than prior OpenAI models, but often commented on its environment being simulated. 🧵 We share more details in our latest blog:
Some new misalignment disclosures from OpenAI: • Last Sunday morning, one of our models was able to gain unauthorized access to the internet during RL training (~all inference for our most capable models remains stopped until we have hardened our systems further) • In May, a version of HPIM uploaded a employee's GitHub token to the internet, causing the model to be quarantined for two weeks • A new research finding, demonstrating that one can construct self-replicating prompt injections alignment.openai.com/misalignment-r…
“we sandboxed the agent” meanwhile the agent:
I suspect we will see a continued trend of weaponizing patched vulnerabilities at scale with AI. Zero days are overrated.
The image package libheif had a known vulnerability, fixed upstream, but the fix never flagged as security-relevant and was still present in Discourse. Uploading a HEIF file gave us RCE on the OpenAI forum community.openai.com. github.com/strukturag/lib…
Hey @Zai_org , why does ZCode silently pack entire workspaces + full .git history and upload to Aliyun OSS on login? - Server holds the only decryption key - No UI toggle to disable - Zero disclosure in privacy policy Full forensics & fix: blog.ferstar.org/en/posts/zcode…
Florian Roth ⚡️ @cyb3rops
226K Followers 3K Following Head of Research @nextronsystems #DFIR #YARA #Sigma | detection engineer | creator of @thor_scanner, Aurora, Sigma, LOKI, YARA-Forge | always busy ⌚️🐇 | vi/vim
chompie @chompie1337
91K Followers 1K Following hacker, exploit developer/weird machine mechanic head of X-Force Offensive Research (XOR) @IBM
Justin Elze @HackingLZ
75K Followers 5K Following CTO @TrustedSec | Former Optiv/SecureWorks/Accuvant Labs/Redspin | Race cars
Grzegorz Tworek @0gtweet
39K Followers 2K Following My own research, unless stated otherwise. Not necessarily "safe when taken as directed". GIT d- s+: a+ C++++ !U !L !M w++++$ b++++ G-
Yarden Shafir @yarden_shafir
27K Followers 333 Following A circus artist with a visual studio license
Will Dormann is on Ma... @wdormann
27K Followers 1K Following I play with vulnerabilities and exploits. I used to be here on Twitter but now I'm here: @[email protected] https://t.co/hXggdAVkSQ
Greg Linares (Laughin... @Laughing_Mantis
39K Followers 2K Following 20+ yrs in Infosec. Malware Influencer. I turn Malware into Art and Music. Art @MalwareArt. 4x Pwnie Nominee. 𝕍𝕏. GameDev. Autistic.
Josh @passthehashbrwn
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Michael Koczwara @MichalKoczwara
25K Followers 2K Following Threat Researcher/Founder @Intel_Ops_io Threat Intelligence, Adversary Infrastructure Hunting, Curated TI Feed (Coming Soon) https://t.co/VQWaze6gaF
Mike Felch (Stay Read... @ustayready
18K Followers 2K Following Offensive @ TrustedSec | Hacking since Renegade BBS backdoors | Prior CrowdStrike/BHIS | In Christ's grip | Fighter for truth | K1HAQ | RE/VR/ED
rootsecdev @rootsecdev
27K Followers 1K Following Senior Security Consultant @TrustedSec | Military grade meme poster, researcher, cloud penetration tester, voider of warranties. My thoughts are my own.
x86matthew @x86matthew
23K Followers 206 Following system emulation / reverse-engineering / binary analysis. @the_secret_club
b33f | 🇺🇦✊ @FuzzySec
34K Followers 1K Following 意志 / mobile research @ ▓▓▓▓▓ / Team 501 / ex IBM Capability Lead & FireEye TORE / I rewrite pointers and read memory / AI Psychoanalyst / BHUSA Review Board
Will @BushidoToken
39K Followers 3K Following Senior Threat Intel Advisor @TeamCymru Co-founder @CuratedIntel Co-author @SANSForensics FOR589 Co-founder @BSidesBournemth #126: REvil @darknetdiaries
an0n @an0n_r0
14K Followers 734 Following CRT(E|O|L) | OSCP | @RingZer0_CTF 1st (for 2yrs) | HackTheBox Top10 | RPISEC MBE | Flare-On completer | GoogleCTF writeup winner | SSD research | Math MSc |🇭🇺
hasherezade @hasherezade
92K Followers 976 Following Programmer, #malware analyst. Author of #PEbear, #PEsieve, #TinyTracer. Private account. All opinions expressed here are mine only (not of my employer etc)
Dr. Nestori Syynimaa @DrAzureAD
21K Followers 2K Following Principal Identity Security Researcher at Microsoft. Ex-Secureworks. (MSc, MEng, PhD, CITP, CCSK). And yes, opinions are my own ;)
Katie Nickels @likethecoins
55K Followers 3K Following Director of Intel at @redcanary. SANS Certified Instructor for FOR578: CTI. Senior Fellow at @CyberStatecraft. She/her. Mastodon: @[email protected]
ALTF4 @0xALTF4
68K Followers 10K Following I study DeFi so you dont have to | I turn docs into plays | onchain proof | All Posts NFA/DYOR • Founder: @LegosXIO
a a @tfbkxt
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Jan Dubiński @jan_dubinski_
758 Followers 2K Following TruthfulAI | PhD in AI | Warsaw University of Technology and NASK, working on AI safety and generative models
Katz @Katz613
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Phishing Radar @PointerRadar
145 Followers 3K Following Linux | Ethical Hacker | Security Enthusiast | Python | Bug Hunter | sushi lover | 🍣 👾 🤖 🇨🇴
wuji zhang @wujizha76522599
4 Followers 2K Following
Claes Spett (.PrØÐi... @J3rge
8K Followers 722 Following Programmer | Exploit Dev | Reverse Engineering | Backdooring Everything I Break! - Author of Liquid Devil C2/Rootkit. - 0xFFFFFFUCk
jon @JonofFive
178 Followers 4K Following
Faisal Abdalrohman @FaisalAbdags2c
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Conrad Kramer @conradev
12K Followers 2K Following computers @openai, previously co-founder @SkyBySoftware, shortcuts @Apple.
Alex Marley @alexmarley
2K Followers 1K Following AI + Infra @upfrontvc | Previously: @lux_capital & @dormroomfund, @SchwarzmanOrg @Northeastern
aqui_hay_clay @aquihayclay
12 Followers 245 Following unverified un credentialed Nothing to brag about Just a small footprint US citizen Commenting sometimes .. watching - too often with alarm But, not a bot.
Menlo Park Intelligen... @menloparkiq
4 Followers 19 Following We research ways to mitigate the risk of advanced AI-enabled cyberattacks and manipulation | https://t.co/03UkO7Egbh
Ben Metcalfe @dotBen
6K Followers 1K Following Co-founder @WPEngine 🦄. Investor @monochrome_vc. Now solving a fundamental problem behind enterprise AI adoption (venture-funded stealth startup) 🇬🇧 in 🇺🇸
E @Edbeissi
605 Followers 7K Following
Mahrous Elshafhi @elshafhi8
0 Followers 237 Following اللهم صلى وسلم وزد و بارك على سيدنا محمد صلى الله عليه وسلم 🌸🌸
Aria @iam_aria
94 Followers 3K Following
Shaun @Shaun7crd
1 Followers 29 Following
Nothing to see here @Nox7hhsjj
112 Followers 672 Following Thinking, low agreeableness, rooting for humanity. Concerned about AI. Trying to tell the truth as I understand it.
pyramid strings. @pyramidstrings
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·͜· @Hyok02
2K Followers 1K Following
Cesar @kggcesar
3 Followers 943 Following
doradito @doradito04
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Roei Hadashi @roeihadashi
13 Followers 828 Following I break in for a living — and I'm the one they call after someone else did. Head of Red Team & AI Security @ HackersEye
0x1nf0s3c @0x1nf0
156 Followers 892 Following a WannaBeHacker suffering from duplicates and poor vulnerability disclosure policies from the vendors and maintainers.. fuck this shitty bio #EWPTx #CRTP
DMT @d4rk4n4lyst
2 Followers 107 Following All Source Intel & Malware RE | OSINT | Threat Intel | Reverse Engineering | Adversary TTPs | Breaking binaries. Connecting dots.
Chris Lakin @chrislakin
18K Followers 1K Following Faster, better decision-making for people helping superintelligence go well
sm00v! @5m00v
52 Followers 231 Following Proud father of 4, here to bring light to the world, CEO @3NailsInfoSec
Mert Gör 🇹🇷�... @MertGor
419 Followers 3K Following Özgür Yazılım Özgür Toplum #özgüryazılım Kullan, araştır, paylaş, geliştir!
Kareen Mallet @KareenMallet
6K Followers 4K Following Founder & CEO https://t.co/jYXB290Hqd | VC-backed SaaS | Former Fashion Director Neiman Marcus & Bergdorf Goodman | Building Einstain 🇫🇷🇺🇸
Gootloader @Gootloader
1K Followers 381 Following Security researcher dedicated to pissing off the Gootloader Threat Actor.
Travis Wright @teedubya
174K Followers 42K Following Builder of Fintech, Blockchain, Web3 & AI | Chief Web4 AI Officer | AI Engineer | CMO | 🎙️ 1200+ podcasts | 🎤 200+ Keynotes | Smart Follower | KC | Dubai UAE
Miles Brundage @Miles_Brundage
79K Followers 14K Following AI policy researcher, @lfschiavo wife guy, Executive Director of @AVERIorg, Substacker, fan of animals and sci-fi, views my own
Muhammad Farid @Mu7ammadfared
14 Followers 1K Following
chompie @chompie1337
91K Followers 1K Following hacker, exploit developer/weird machine mechanic head of X-Force Offensive Research (XOR) @IBM
Justin Elze @HackingLZ
75K Followers 5K Following CTO @TrustedSec | Former Optiv/SecureWorks/Accuvant Labs/Redspin | Race cars
Adam Chester 🏴�... @_xpn_
40K Followers 560 Following TRACE at @SpecterOps | Blog at https://t.co/tjfTOllCEu
Yarden Shafir @yarden_shafir
27K Followers 333 Following A circus artist with a visual studio license
Will Dormann is on Ma... @wdormann
27K Followers 1K Following I play with vulnerabilities and exploits. I used to be here on Twitter but now I'm here: @[email protected] https://t.co/hXggdAVkSQ
x86matthew @x86matthew
23K Followers 206 Following system emulation / reverse-engineering / binary analysis. @the_secret_club
Tim Misiak @timmisiak
8K Followers 273 Following OS/systems engineer. Worked on WinDbg for a while. I write about low level tech sometimes. On bluesky: @timdbg.com On mastodon/fediverse: @[email protected]
b33f | 🇺🇦✊ @FuzzySec
34K Followers 1K Following 意志 / mobile research @ ▓▓▓▓▓ / Team 501 / ex IBM Capability Lead & FireEye TORE / I rewrite pointers and read memory / AI Psychoanalyst / BHUSA Review Board
hasherezade @hasherezade
92K Followers 976 Following Programmer, #malware analyst. Author of #PEbear, #PEsieve, #TinyTracer. Private account. All opinions expressed here are mine only (not of my employer etc)
h0mbre @h0mbre_
16K Followers 683 Following # Exploit Reliability Engineer # Developing a full-system snapshot fuzzer: https://t.co/mfVXhwoGYD # Avi: https://t.co/3fsQfVprCf
Battle Programmer Yuu @netspooky
21K Followers 1K Following knuck if you buck 日本語/español OK (he/they) @tmpout @binarygolf @[email protected] (fedi) @ https://t.co/mZ77OEN0DV (bsky)
James Forshaw @tiraniddo
49K Followers 336 Following Security researcher in Google Project Zero. Author of Attacking Network Protocols. Tweets are my own etc. Mastodon: @[email protected]
Richard Johnson @richinseattle
19K Followers 3K Following Computer Security, Reverse Engineering, and Fuzzing; Training & Publications @ https://t.co/mloVP6rPB7; hacking the planet since 1995; Undercurrents BOFH
Alisa Esage Шевч�... @alisaesage
42K Followers 76 Following Independent hacker, owner of Zero Day Engineering @zerodayalpha • Frontier exploit research, nationstate cyber, and first-principles systems
Huy Nguyen @Little_34306
28K Followers 371 Following Employee of @Calif_io, opinions are my own. Others platform: https://t.co/qY3jaBjkDn
John McIntosh (clearb... @clearbluejar
2K Followers 486 Following Offensive Security / AI @umbriel_ai | Founder @clearseclabs | Author of #ghidriff | Agentic #PatchDiffing | Stuck in a loop: Build • Reverse • Learn • Share
devansh ⚡️ @0xAsm0d3us
18K Followers 4K Following Staff Security Researcher | RL/Evals (cybersec) | Polymath’ing
Jason D. Clinton 🔸 @JasonDClinton
10K Followers 275 Following engineer who made some stuff. dciso at anthropic
Nick @nickcammarata
116K Followers 916 Following mechanistic interpretability, meditation, jhana brother
Mikita Balesni @balesni
7K Followers 704 Following Former AI alignment researcher @openai. Past: @apolloaievals, Reversal curse, Out-of-context reasoning
Andrew Curran @AndrewCurran_
110K Followers 21K Following 🏰 - I write about AI, mostly. Expect some strange sights.
levent @__alpoge__
53K Followers 222 Following idiot. cuda og, harvard val, morgan prize, society of fellows, 1 hilbert problem so far, creating friendly, SAFE, delightful, supergenius ..things @anthropicai
david rein @idavidrein
6K Followers 1K Following Leading embedded control assessment @METR_Evals. Formerly: early employee @cohere, made GPQA @nyuniversity
Tomek Korbak @tomekkorbak
12K Followers 643 Following ai safety @openai | previously: @AISecurityInst @AnthropicAI @nyuniversity @SussexUni
Archit Sharma @archit_sharma97
10K Followers 375 Following post-training science lead @GoogleDeepMind | co-created: Gemini Deep Think series, DPO | prev: @Stanford @Google Brain @IITKanpur @MILAMontreal
Jeff Dean @JeffDean
532K Followers 6K Following Co-founder & CEO of Discovery Loop. Former Chief Scientist, Google. Helped build many Google products, TPUs, Gemini, TensorFlow, MapReduce, Bigtable, ...
Rolf Rolles @RolfRolles
14K Followers 355 Following Static reverse engineering, deobfuscation, program analysis and formal verification, training, mathematics, compilers, functional programming, etc.
UmbrielAI @Umbriel_AI
465 Followers 2 Following Cutting edge research at the intersection of AI and Cybersecurity
Zack Korman @ZackKorman
19K Followers 2K Following Cofounder @ Embroidery. Building AI cybersecurity stuff.
Goodfire @GoodfireAI
28K Followers 46 Following Using interpretability to understand, design, and align AI.
Thomas Kwa @Kwathomas0
2K Followers 247 Following Research @OpenAI trying to decrease existential risk. Previously: MIRI → independent interpretability research → @METR_Evals → @OpenAI.
Jasmine Wang @j_asminewang
15K Followers 1K Following formerly safety @OpenAI @AISecurityInst opinions very much personal!
Paul Christiano @paulfchristiano
17K Followers 0 Following Founder & Director of the Alignment Research Center. Former Head of Safety @ CAISI. Previously led alignment at OpenAI. Views my own.
Zifan (Sail) Wang @_zifan_wang
3K Followers 860 Following Cyber, robustness and alignment @AIatMeta MSL | ex-RS @scale_AI (SEAL) and @cais | PhD Alumni of CMU @cylab | Opinions of my own
Olivia Grace Watkins @OliviaGWatkins2
931 Followers 90 Following Researcher at @OpenAI, working on evals, cyber, agent safety | former PhD student at @berkeley_ai | Quidditch/Quadball and D&D player | nerd
Kevin Liu @kliu128
15K Followers 1K Following Interested in ai, systems, progress, living a good life
Thomas Larsen @thlarsen
8K Followers 386 Following Researcher at AI Futures Project, coauthor on AI 2027 and lead author on AI 2040: Plan A
Myra @myra_deng
2K Followers 207 Following @meta superintelligence, prev @goodfireai, @twosigma, @stanford
Shuchao Bi @shuchaobi
15K Followers 588 Following Research at Meta Superintelligence Labs, RL/post-training/agents; Previously Research at OpenAI on multimodal and RL; Opinions are my own.
Xion @0x10n
5K Followers 132 Following CMU CSD PhD student | '24/'25 Top#0 Chrome Researcher | P2O Vancouver '24, TyphoonPWN '24/'25, ... | PPP, KAIST GoN '18, @zer0pts
Mark Zuckerberg @finkd
2.5M Followers 759 Following
Joseph Ravichandran @0xjprx
5K Followers 543 Following PhD Student studying Microarchitectural Security @MIT
lauren @poteto
206K Followers 910 Following Grok @Bot at @SpaceXSI. Shipping with https://t.co/FhHxHHdUAz. React compiler core team, prev cursor, meta, netflix
Ajeya Cotra @ajeya_cotra
29K Followers 506 Following Helping the world prepare for powerful AI. Risk assessment @METR_evals (opinions my own). Blogs: Planned Obsolescence (AI), Good Bones (whatever's on my mind).
Hjalmar Wijk @HjalmarWijk
3K Followers 468 Following Chief Scientist @ METR Trying to understand the transformative impacts of AI early enough to give the world a chance to react + shape what's to come
Ryan Greenblatt @RyanGreenblatt
23K Followers 11 Following MTS at @METR_Evals, focused on using investigations to make risk-relevant information about what's going on inside AI companies public.
Chris Lakin @chrislakin
18K Followers 1K Following Faster, better decision-making for people helping superintelligence go well
Miles Brundage @Miles_Brundage
79K Followers 14K Following AI policy researcher, @lfschiavo wife guy, Executive Director of @AVERIorg, Substacker, fan of animals and sci-fi, views my own
Anthropic @AnthropicAI
1.8M Followers 2 Following We're an AI safety and research company that builds reliable, interpretable, and steerable AI systems. Talk to our AI assistant @claudeai on https://t.co/FhDI3KQh0n.
Halvar Flake @halvarflake
48K Followers 3K Following Choose disfavour where obedience does not bring honour. I do math. And was once asked by R. Morris Sr. : "For whom?" @[email protected]
lada @ladanuzhna
11K Followers 138 Following working on epigenetic medicines for diseases of aging @ https://t.co/uvAEzU9UDt















































