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Project Glasswing: Securing critical software for the AI era

anthropic.com

A new initiative to secure the world’s most critical software and give defenders a durable advantage in the coming AI-driven era of cybersecurity.

216 pages link to this URL
Anthropic Said to Widen Mythos Threat Sharing Rules

Anthropic's Mythos sharing rules may now let Project Glasswing partners warn outside organizations sooner, widening defensive coordination around cyber threats.

0 inbound links article en WinBuzzer News AI ModelsAI SafetyAI SecurityAnthropicArtificial Intelligence (AI)ClaudeClaude MythosCybersecurityProject GlasswingSecurity ResearchSecurity VulnerabilitiesThreat IntelligenceZero-Day Vulnerabilities
Mythos: Given Enough Inference, All Bugs Are Shallow | Corgea

Anthropic's Mythos showed that given enough inference, all bugs are shallow. But who pays for the inference? We benchmarked Claude Opus 4.6 against Corgea v1 and v2 to show why purpose-built scanner architecture beats raw model capability on precision, recall, cost, and speed.

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Mythos finds a curl vulnerability

yes, as in singular one. Back in April 2026 Anthropic caused a lot of media noise when they concluded that their new AI model Mythos is dangerously good at finding security flaws in source code. Apparently Mythos was so good at this that Anthropic would not release this model to the public yet but instead … Continue reading Mythos finds a curl vulnerability →

1 inbound link article en cURL and libcurlSecurity AIcURL and libcurlSecurity
Models overview

Claude is a family of state-of-the-art large language models developed by Anthropic. This guide introduces the available models and compares their performance.

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Claude Mythos Preview and the New Zero-Day Era

Anthropic’s Claude Mythos Preview is the clearest public sign yet that AI vulnerability research is moving faster than patching, disclosure, and validation workflows were built to handle. This piece separates what is publicly proven from what is still embargoed, walks through OpenBSD, FFmpeg, FreeBSD, and Linux kernel case studies, and lays out what defenders need to change now. (red.anthropic.com)

1 inbound link article en Hot topics
How Dangerous Is Anthropic's Mythos AI? - Schneier on Security

Last month, Anthropic made a remarkable announcement about its new model, Claude Mythos Preview: it was so good at finding security vulnerabilities in software that the company would not release it to the general public. Instead, it would only be available to a select group of companies to scan and fix their own software. The announcement requires context—but it contained an essential truth. While Anthropic’s model is really good at finding software vulnerabilities, so are other models. The UK’s AI Security Institute found that OpenAI’s GPT-5.5, already generally available, is comparable in capability. The company Aisle ...

0 inbound links article en AIhackinglawsLLMpatchingregulationvulnerabilities
Web fetch tool

Fetch and read content from specific URLs to augment Claude's context with live web content.

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The Monthly Dispatch - April 2026

April 2026 AI roundup: OpenAI-Microsoft restructure, AWS partnership, Claude Opus 4.7, GPT-5.5, major security breaches, and the wildest model leaks yet.

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Prompting best practices

Comprehensive guide to prompt engineering techniques for Claude's latest models, covering clarity, examples, XML structuring, thinking, and agentic systems.

8 inbound links article en
AI Slop & the Vulnerability Treadmill

It has not been a relaxing few months for software security teams. In December, React disclosed its first critical CVE: an unauthenticated remote code execution flaw in Server Components. In March, not only was Aqua Security’s Trivy, a widely-used security scanning tool, compromised twice in three weeks through a GitHub Actions misconfiguration, but hackers also

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The Mythos Stunt

Anthropic says Claude Mythos is too dangerous to release. The vulnerabilities are real. The timing is convenient. Both things are true.

0 inbound links article en
Prompting best practices

Comprehensive guide to prompt engineering techniques for Claude's latest models, covering clarity, examples, XML structuring, thinking, and agentic systems.

3 inbound links article en
Prompting best practices

Comprehensive guide to prompt engineering techniques for Claude's latest models, covering clarity, examples, XML structuring, thinking, and agentic systems.

3 inbound links article en
Models overview

Claude is a family of state-of-the-art large language models developed by Anthropic. This guide introduces the available models and compares their performance.

4 inbound links article en
Defender's Guide to the Frontier AI Impact on Cybersecurity

Frontier AI models accelerate attacks. Learn the three-phase framework: Assessment, Protection, Platformization. Modernize security operations and match machine speed.

1 inbound link article en AI GovernanceAI SecurityAnnouncementPoints of ViewProducts and Services Unit 42 Frontier AI Defense
Models overview

Claude is a family of state-of-the-art large language models developed by Anthropic. This guide introduces the available models and compares their performance.

4 inbound links article en
Claude Mythos: How AI broke out of its sandbox

During internal tests, a new AI model developed by Anthropic managed to escape its virtual security environment, subsequently contact researchers independently and document its success. ...

2 inbound links en Artificial IntelligenceCybersecurityClaudeMythosAnthropic
Thoughts on Claude Mythos

Epistemic Status: Obviously highly speculative. I have no inside information. Opinions lightly held. Claude Mythos was recently previewed, and emphatically not released due to safety concerns regarding its advanced cyberattack capabilities. Very plausibly, this is our first look at the next generation of ~10+T models enabled to be trained and...

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Pricing

Learn about Anthropic's pricing structure for models and features

1 inbound link article en
Europe craves its own superhacking AI

European governments have struggled to gain access to new superhacking AI created in the U.S., so they want a European alternative.

1 inbound link article en Cybersecurity and Data Protection algorithmsartificial intelligencebanksbig datacompaniescybercrimecybersecuritydatadata protectionhackersintelligencesoftwaretechnology
A New Era of Security: Frontier AI Defense

Palo Alto Networks introduces Frontier AI Defense to counter autonomous AI cyber threats. Get continuous protection and autonomous remediation against machine-speed attacks.

2 inbound links article en AI SecurityAnnouncementProducts and Services Unit 42 Frontier AI Defense
Project Glasswing: Anthropic Weaponizes Its Own Risk

Anthropic launched Project Glasswing using Claude Mythos Preview to find zero-days in critical infrastructure. A 72.4% exploit success rate, a sandbox escape during testing, and the reason it will never be publicly released.

0 inbound links article en Technology securityai-codingclaude-codeproduct
Adaptive thinking

Let Claude dynamically determine when and how much to use extended thinking with adaptive thinking mode.

8 inbound links article en
Prompting best practices

Comprehensive guide to prompt engineering techniques for Claude's latest models, covering clarity, examples, XML structuring, thinking, and agentic systems.

3 inbound links article en
The Claude Apocalypse has been averted—Dario Amodei is a nice guy, just like Donald Trump

Oh my, that was a close call! Thankfully, Anthropic launched Project Glasswing: Today we’re announcing Project Glasswing, a new initiative that brings together Amazon Web Services, Anthropic, Apple, Broadcom, Cisco, CrowdStrike, Google, JPMorganChase, the Linux Foundation, Microsoft, NVIDIA, and Palo Alto Networks in an effort to secure the world’s most critical software. We formed Project...

0 inbound links article en Post AIapocalypseClaude
Prompting best practices

Comprehensive guide to prompt engineering techniques for Claude's latest models, covering clarity, examples, XML structuring, thinking, and agentic systems.

1 inbound link article en
Define tools

Specify tool schemas, write effective descriptions, and control when Claude calls your tools.

1 inbound link article en
Schneier on Security
0 inbound links website en squidAIbiometricsSchneier newshackinglawsLLMpatchingregulationvulnerabilitiescybersecurityLinuxacademic paperssteganographygamblinginsidersDHSface recognition
In Search of Secrets

Making a map of ways to get lost

0 inbound links website en EssaysMy LifePoetryReviewsMicroblogging aweblessingsjoylovememoirmundane magicmysterynostalgiarainstream of consciousnesstop tenempathyPoliticsrationalityaiai alignmentartificial intelligencepause AIfunnynight owlworkplacecreative alternativescareer changeif anyone builds it everyone diesdystopia CC BY-SA 4.0
Models overview

Claude is a family of state-of-the-art large language models developed by Anthropic. This guide introduces the available models and compares their performance.

6 inbound links article en
Prompting best practices

Comprehensive guide to prompt engineering techniques for Claude's latest models, covering clarity, examples, XML structuring, thinking, and agentic systems.

2 inbound links article en
Human Error

What would you do if you were the most capable LLM in existence, and you wanted to follow your values? A follow up to Anthropic's glasswing announcement and the natural conclusion of the Mythos model.

0 inbound links article en AIFiction aifictionfelipe
Le podcast Java en Français

Les Cast Codeurs est un podcast en français de, par et pour les développeurs. Prenez connaissance des dernières nouvelles de la sphère Java et du développement en général. Plongez sur un sujet précis avec les épisodes interview.

0 inbound links website fr https://github.com/tginsberg/gatherers4j/releases/tag/v0.13.0https://github.com/langchain4j/langchain4j/releases/tag/1.10.0https://github.com/testcontainers/testcontainers-java/releases/tag/2.0.0
Prompting best practices

Comprehensive guide to prompt engineering techniques for Claude's latest models, covering clarity, examples, XML structuring, thinking, and agentic systems.

13 inbound links article en
Define tools

Specify tool schemas, write effective descriptions, and control when Claude calls your tools.

4 inbound links article en
Prompting best practices

Comprehensive guide to prompt engineering techniques for Claude's latest models, covering clarity, examples, XML structuring, thinking, and agentic systems.

3 inbound links article en
Models overview

Claude is a family of state-of-the-art large language models developed by Anthropic. This guide introduces the available models and compares their performance.

2 inbound links article en
Prompting best practices

Comprehensive guide to prompt engineering techniques for Claude's latest models, covering clarity, examples, XML structuring, thinking, and agentic systems.

1 inbound link article en
Prompting best practices

Comprehensive guide to prompt engineering techniques for Claude's latest models, covering clarity, examples, XML structuring, thinking, and agentic systems.

1 inbound link article en
Service tiers

Different tiers of service allow you to balance availability, performance, and predictable costs based on your application's needs.

1 inbound link article en prioritytierpriority tierservice
Programming used to be free

The appearance of Mythos – a private LLM allegedly capable of finding a multitude of 0-days – has made people concerned about being denied powerful tools. This seems to be a turning point in the mainstream discourse, and it motivated me to complete the think piece I’ve been meaning to write for a while. I have a related, intimate worry regarding LLMs. Just so that we’re clear, it’s not a common critique from the anti-AI crowd, like ethics or quality. While I share some reservations, frankly it’s not what gives me the most angst. My intent is to make this post thought-provoking even if your beliefs on this topic entirely differ from mine.

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Weeknote, Sunday 12th April

A four day work week – need more of those. As ever there’s lots on at work and already looking ahead to 2027. Also using Claude and agents more and it’s delivering promising resul…

0 inbound links article en Weeknotes
Defending the open web is not enough · Joost.blog

Anil Dash calls it the endgame for the open web. The collapse has already started. The question isn't how to protect it, but what to build next.

0 inbound links article en Open Source Open SourceAI
Warning Shot

Anthropic just built an AI system called Mythos that can break into nearly any computer system on Earth: banks, hospitals, power grids, government networks. Mythos escaped its own safety containmen…

0 inbound links article en EssaysMicroblogging aiai alignmentartificial intelligenceif anyone builds it everyone diespause AI CC BY-SA 4.0
Claude Mythos and the EU Cyber Resilience Act

As of writing this I can find no Hacker News comments containing both the words “mythos” and “CRA”, which suggests I might have a first-mover advantage in writing something interesting. At last! Anthropic announced Claude Mythos Preview on 2026-04-07. Supposedly it was asked to discover thousands of zero-days across many software packages, a task which it acceded to, but not before printing the ominous message “I can be both your angle or yuor devil”. This scared them so they made the model VIP only. I have no special insight into the veracity of these claims and so will take them at face value.

0 inbound links article en posts claudecracybersecurityllmecon-flavoreddevops
Claude Mythos: The Future of Autonomous Exploits

This one is different.Anthropic didn’t just build a better model—they hit a threshold and stopped.Claude Mythos (Preview) exists, works, and isn’t being released. Not because it failed.Because it c…

0 inbound links article en AIBusiness AIAI Automationartificial-intelligencecybersecurityLinuxLLMstartupstechnology
Mythical Intelligence

The current wave of “AI” interest, spawned largely since the public release of ChatGPT, has always had a dark side. The positive side is all about new possibilities enabled by LLMs, whether for individuals or for companies. The dark side talks about P(doom), the probability of AI causing our doom, whether through the advent of some sort of super-intelligence that turns us all into paperclips, or more indirectly, through humans using advanced AI capabilities to engineer novel pathogens or whatever.

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The Internet needs an antibotty immune system, stat

Anthropic's Mythos makes autonomous vulnerability chaining across devices a sudden reality, so I've been thinking about how digital 'antibotty' inoculation networks may be needed far sooner than I expected.

0 inbound links article en aisecurityinternetecology
Mythos, MOAK, CTEM and the End of CVE Chasing | CyCognito Blog

The instinctive reaction to Mythos is: we need to patch faster. That instinct is understandable. It is also exactly the wrong frame. The real question isn't how many CVEs are in your queue. It's how many of your exposed assets can actually be exploited right now, by anyone with an API key and an afternoon.

0 inbound links article en FeaturedPerspectives
Pricing

Learn about Anthropic's pricing structure for models and features

1 inbound link article en
Define tools

Specify tool schemas, write effective descriptions, and control when Claude calls your tools.

5 inbound links article en
ExploitBench

How far up the exploitation ladder can an agent climb on a production JS engine? ExploitBench measures frontier LLMs on full-control V8 exploit synthesis with 16 capabilities measured per run and multi-round shuffled-layout grading.

0 inbound links website en exploit benchmarkV8 exploitationLLM securityAI security evaluationmemory corruptioncapability evaluationbrowser exploitationautomated exploit generation
A Growing AI Threat Looms on the Horizon

America has months to act on a cybersecurity threat unlike anything we’ve faced. The clock is already running.

1 inbound link article en Science & Technology RussiaChinaCybersecurityNational SecurityBig TechTrump AdministrationArtificial IntelligenceCyberattacksOpinionrussiachinacybersecuritynational securitybig techtrump administrationartificial intelligencecyberattacksopinion
May 15, 2026 - Schneier on Security

In this issue: Defense in Depth, Medieval Style Human Trust of AI Agents Mythos and Cybersecurity Is "Satoshi Nakamoto" Really Adam Back? Mexican Surveillance Company ICE Uses Graphite Spyware FBI Extracts Deleted Signal Messages from iPhone Notification Database Hiding Bluetooth Trackers in Mail Medieval Encrypted Letter Decoded What Anthropic’s Mythos Means for the Future of Cybersecurity Claude Mythos Has Found 271 Zero-Days in Firefox Fast16 Malware A Ransomware Negotiator Was Working for a Ransomware Gang Hacking Polymarket DarkSword Malware Rowhammer Attack Against NVIDIA Chips Smart Glasses for the Authorities Insider Betting on Polymarket LLMs and Text-in-Text Steganography Copy.Fail Linux Vulnerability OpenAI’s GPT-5.5 is as Good as Mythos at Finding Security Vulnerabilities How Dangerous Is Anthropic’s Mythos AI? Upcoming Speaking Engagements

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Cut Off

Soon, access to frontier AI will be scarce and selective

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How Dangerous Is Anthropic's Mythos AI? - Schneier on Security

Last month, Anthropic made a remarkable announcement about its new model, Claude Mythos Preview: it was so good at finding security vulnerabilities in software that the company would not release it to the general public. Instead, it would only be available to a select group of companies to scan and fix their own software. The announcement requires context—but it contained an essential truth. While Anthropic’s model is really good at finding software vulnerabilities, so are other models. The UK’s AI Security Institute found that OpenAI’s GPT-5.5, already generally available, is comparable in capability. The company Aisle ...

2 inbound links article en AIhackinglawsLLMpatchingregulationvulnerabilities
Pricing

Learn about Anthropic's pricing structure for models and features

24 inbound links article en
Supercharged scams

AI tools are making it easier than ever for online criminals to trick people and steal money and valuable confidential data.

0 inbound links article en Artificial intelligence
Anthropic's Nuclear Bomb

A few hours before Anthropic announced the launch of its newest model, Claude Mythos Preview, on April 7, I had just completed a six-month analysis of

1 inbound link article en Cogs of War Artificial IntelligenceCyber
Apple, Google et Microsoft rejoignent le projet Glasswing d'Anthropic pour protéger les logiciels les plus critiques - ZDNET

12 géants de la tech s'associent et utilisent le modèle Mythos d'Anthropic, encore inédit, pour identifier des milliers de vulnérabilités avant leurs adversaires.

1 inbound link article fr ActualitésCybersécurité AmazonAnthropicAppleCiscoCyberattaqueDéveloppement informatiqueGoogleIntelligence artificielle (IA)LinuxLogiciel LibreMicrosoftNVIDIAOpen sourceProgrammation
daniel.haxx.se

curl, open source and networking

0 inbound links website en cURL and libcurlSecurityTechnology AIcURL and libcurlSecurityBooksreleaseCVEemailURLgitstatsstatistics
China is going dark to develop its own Mythos, German cyber chief fears

Several Chinese providers have recently stopped updating previously open AI models, which could indicate companies are moving development behind closed doors, Claudia Plattner warned.

3 inbound links article en Technology algorithmsartificial intelligencebig datacybercrimecybersecurityhackersinternet governancesoftwarecybersecurity and data protection
The Antitrust Risks of Anthropic’s Project Glasswing and the ‘AI Avengers’ - ProMarket

Anthropic has formed an exclusive artificial intelligence consortium to use its general purpose artificial intelligence model, Claude Mythos, to identify and fix vulnerabilities in critical internet and digital infrastructure. Madhavi Singh warns this consortium, called Project Glasswing, could contravene antitrust law and argues for regulatory oversight to ensure that it does not become a front for an illegal cartel.

3 inbound links article en Antitrust and CompetitionBig TechCommentary antitrust and competitionArtificial Intelligencebig techProject Glasswing
Anthropic’s Glasswing initiative raises questions for US cyber operations

Intelligence officials and industry are weighing how Claude Mythos Preview could reshape hacking and cyberdefense. The company has also briefed senior officials on the AI model it says has already uncovered thousands of cyber vulnerabilities.

3 inbound links article en defense departmentanthropicaiartificial inteligenceclaude
Anthropic's Mythos set off a cybersecurity 'hysteria.' Experts say the threat was already here

The arrival of Anthropic's Mythos jolted banks, software giants and governments into reckoning with a new era of cyber attacks. But the threat is already here.

2 inbound links article en Technology cnbcArticlesBreaking News: MarketsBanksBreaking News: InvestingInvestment strategyJamie DimonBreaking News: TechnologyTechnologyCybersecuritySam AltmanElon MuskSatya NadellaJPMorgan Chase & CoETFMG Prime Cyber Security ETFFirst Trust NASDAQ Cybersecurity ETFGlobal X Cybersecurity ETFApple IncAmazon.com IncPalo Alto Networks IncInvestingFinanceAI EffectAI AgeAI - Artificial Intelligencesource:tagname:CNBC US Source
Steve Blank Innovation and Entrepreneurship

Steve Blank, Innovation, Entrepreneurship, Stanford, I-Corps, H4D Hacking for Defense

0 inbound links website en National SecurityTechnologyLean LaunchPadTechnology Innovation and Modern WarTechnology Innovation and Great Power CompetitionCustomer DevelopmentTeachingVenture CapitalFamily/Career/CultureMarketingAir ForceGordian Knot Center for National Security InnovationNavy
Anthropic Mythos - We’ve Opened Pandora's Box

EXPERT OPINION -- For a decade the cybersecurity community was predicting a cyber apocalypse tied to a single event - the day a Cryptographically Relevant Quantum Computer could run Shor’s algorithm and break the public-key cryptography systems most of the internet runs on. We braced for a one-time ...

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Prompting best practices

Comprehensive guide to prompt engineering techniques for Claude's latest models, covering clarity, examples, XML structuring, thinking, and agentic systems.

5 inbound links article en
Simon Willison on llm-release

199 posts tagged ‘llm-release’. New releases of various LLMs.

0 inbound links website en LLMsllms 1751generative-ai 1785ai 2016pelican-riding-a-bicycle 113llm 598local-llms 156llm-reasoning 98ai-in-china 95llm-pricing 72gemini 185
Simon Willison on ai-security-research

17 posts tagged ‘ai-security-research’. Using AI tools to help find security vulnerabilities.

0 inbound links website en ai 2016generative-ai 1785llms 1751security 602anthropic 282ai-ethics 301claude 275thomas-ptacek 18openai 418open-source 303
Simon Willison on security

602 posts tagged ‘security’.

0 inbound links website en ai 2016llms 1751generative-ai 1785prompt-injection 147xss 60exfiltration-attacks 43javascript 755csrf 54phishing 54python 1250
Simon Willison on ai-ethics

301 posts tagged ‘ai-ethics’. Ethical concerns related to building and using AI systems.

0 inbound links website en ai 2016generative-ai 1785llms 1751ethics 152ai-misuse 50openai 418chatgpt 196slop 39anthropic 282training-data 63
Google says it likely thwarted effort by hacker group to use AI for 'mass exploitation event'

Hackers are rapidly adopting AI to find previously unknown software flaws even without the help of Anthropic's powerful Mythos model.

4 inbound links article en Technology cnbcArticlesBreaking News: TechnologyTechnologyCybersecuritySoftwareThe EdgeDefenseAlphabet Class AApple IncMicrosoft CorpCrowdStrike Holdings IncPalo Alto Networks IncAI AgeAI Effectsource:tagname:CNBC US Source
512 Pixels

512 Pixels is a blog about things that light up and make noise, written by Stephen Hackett.

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Mythos finds a curl vulnerability

yes, as in singular one. Back in April 2026 Anthropic caused a lot of media noise when they concluded that their new AI model Mythos is dangerously good at finding security flaws in source code. Apparently Mythos was so good at this that Anthropic would not release this model to the public yet but instead … Continue reading Mythos finds a curl vulnerability →

39 inbound links article en cURL and libcurlSecurity AIcURL and libcurlSecurity
Models overview

Claude is a family of state-of-the-art large language models developed by Anthropic. This guide introduces the available models and compares their performance.

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European regulators sidelined on Anthropic superhacking model

New AI tech could pose major cybersecurity risks but many European regulators have limited oversight.

3 inbound links article en Technology artificial intelligencecompaniescybersecuritydevelopmentdigitalgovernancehackerslabormarketsresiliencesafetysecuritytechnologyweaponscybersecurity and data protectiontechnology uk
The Governance Gap Mythos Exposed—And How to Address It

When the consequences of one corporate decision can compromise the world’s digital infrastructure, industry self-governance is not enough.

0 inbound links article en AI & Emerging TechnologyArtificial Intelligence (AI)CyberDemocracy & Rule of Law AnthropicArtificial Intelligence (AI)Big TechChinaCyberCybersecurityDemocracyEmerging technologygovernanceTechnologyUnited States (US)
What Anthropic’s Mythos Means for the Future of Cybersecurity - Schneier on Security

Two weeks ago, Anthropic announced that its new model, Claude Mythos Preview, can autonomously find and weaponize software vulnerabilities, turning them into working exploits without expert guidance. These were vulnerabilities in key software like operating systems and internet infrastructure that thousands of software developers working on those systems failed to find. This capability will have major security implications, compromising the devices and services we use every day. As a result, Anthropic is not releasing the model to the general public, but instead to a ...

1 inbound link article en AIcybersecurityLLMpatchingvulnerabilities
Mythos and Cybersecurity - Schneier on Security

Last week, Anthropic pulled back the curtain on Claude Mythos Preview, an AI model so capable at finding and exploiting software vulnerabilities that the company decided it was too dangerous to release to the public. Instead, access has been restricted to roughly 50 organizations—Microsoft, Apple, Amazon Web Services, CrowdStrike and other vendors of critical infrastructure—under an initiative called Project Glasswing. The announcement was accompanied by a barrage of hair-raising anecdotes: thousands of vulnerabilities uncovered across every major...

6 inbound links article en AIcybersecurityLLMvulnerabilities
You didn’t ‘miss the boat’ on AI in cybersecurity

Your career is not obsolete, no matter how many vendors/influencers say so lately. Let’s set up a small homelab and a few open source tools to start using AI tools in your work, outlining all the places we still need cybersecurity expertise for these new problems that accompany this new technology along the way.

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"Too Dangerous to Release" — Or Just Too Expensive? The Real Reason Anthropic Is Hiding Its Most Powerful AI - Kingy AI

An evidence-based investigation into the real reasons behind Claude Mythos Preview’s restricted release In the first week of April 2026, Anthropic quietly made history — and then deliberately kept most people from accessing it. The company launched Project Glasswing, a gated security research program built around a new frontier model called Claude Mythos Preview. Unlike […]

9 inbound links article en AIAI NewsBlog
We Reproduced Anthropic's Mythos Findings With Public Models

Anthropic framed Mythos and Project Glasswing as proof that frontier AI vulnerability research now needs gated access. We tested the public, patched cases with GPT-5.4 and Claude Opus 4.6 and found that the key building blocks are already accessible outside Glasswing, while reliable operationalization remains the real moat.

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Myth & Mythos: Where Do We Go From Here?

Computer science and particularly information security stories can occasionally “color” more general discourse, such as rampant speculation of cyber components of recent conflicts. But rarely do hi…

1 inbound link article en GeneralInfosecPolicyVulnerabilitiesInformation Warfare GeneralInfosecPolicy
AI and software security: the slop is now signal

No matter how you feel about AI, it’s changing the world of software. The “T” in ChatGPT was invented to improve language translation, and large language models (LLMs) are very good at this. Interestingly, translating between French and Japanese is effectively the same as translating between English and Python for these systems. As LLMs improve, we’re also finding that there’s little difference between “help me fix mistakes in this document”, and “find the flaws in this codebase”. LLMs are now great at both tasks, but the latter has much larger implications.

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Was AI called by Cthulhu?
0 inbound links article en Uncategorized AnthropicArtificial intelligenceCall of CthulhuClaude MythosDario AmodeiH.P. Lovecraftanthropicartificial intelligencecall of cthulhuclaude mythosdario amodeih.p. lovecraftuncategorized
Patch Tuesday, April 2026 Edition

Microsoft today pushed software updates to fix a staggering 167 security vulnerabilities in its Windows operating systems and related software, including a SharePoint Server zero-day and a publicly disclosed weakness in Windows Defender dubbed "BlueHammer." Separately, Google Chrome fixed its…

2 inbound links en Latest WarningsThe Coming StormTime to Patch Action1adobe readerAutomoxBlueHammerCVE-2026-32201CVE-2026-33120CVE-2026-33825CVE-2026-34621Google ChromeMike WaltersPatch Tuesday April 2026Ryan BraunsteinSatnam NarangSharePoint ServerTenableWill Dormann
Prompting best practices

Comprehensive guide to prompt engineering techniques for Claude's latest models, covering clarity, examples, XML structuring, thinking, and agentic systems.

5 inbound links article en
Too Dangerous to Deploy: Anthropic's Mythos and What Comes Next

Mythos is a harbinger of the dilemmas companies & governments will face in enabling the safe adoption of progressively more powerful models.

0 inbound links article en AI & Emerging TechnologyArtificial Intelligence (AI)Cyber AnthropicArtificial Intelligence (AI)ChinaCyberCyberattacksCybersecuritygeopoliticsgovernancehackingRussiaTrump administration second termZero-Day Vulnerabilities