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Cybersecurity

Topic24 articles · Updated May 14, 2026

AI Cybersecurity News

The intersection of AI and cybersecurity: model vulnerabilities and CVEs, prompt injection and jailbreaks, adversarial attacks on ML systems, and the defensive tooling being built to push back.

cybersecurity
5.8
May 14, 2026
AI Integrates with Cybersecurity, Spotlighting Human Roles
The opinion piece published on ITSecurityNews.info and indexed from DZone Security Zone examines the human element in AI-driven cybersecurity. The author, identifying as a Senior Software Engineer at Microsoft, recounts a firsthand incident and highlights themes including the integration of AI with quantum computing, a shift toward proactive AI-enhanced threat hunting, IoT security concerns, the use of adversarial AI for stress testing, and the importance of explainable AI, creativity, and ethics (ITSecurityNews.info). Editorial analysis: For practitioners, the article underscores that deploying AI in security requires prioritizing human judgement, instrumentation, and governance alongside model development.
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anthropic
8.6
May 14, 2026
Anthropic's Mythos Raises Cybersecurity Risk Questions
Anthropic unveiled Claude Mythos Preview, a model the New York Times reports the company restricted to a small set of organisations because of its ability to find and weaponize software vulnerabilities. Independent evaluations by the United Kingdom's AI Security Institute (AISI) and testing by Palo Alto Networks found Claude Mythos Preview and OpenAI's GPT-5.5 have substantially outpaced previous trends in autonomous cyber capability, with AISI reporting Mythos completed a 32-step simulated attack in 6 of 10 attempts and GPT-5.5 in 3 of 10, according to Cyberscoop. Reuters reports the Pentagon is using Mythos under Anthropic's Project Glasswing to patch vulnerabilities while also planning to wean federal systems off Anthropic products. Reporting in The Parliament Magazine and other outlets notes limited EU access and a debate among security experts and policymakers about controlled distribution versus wider research access.
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anthropic
7.0
May 14, 2026
Japan Megabanks Gain Access to Anthropic Mythos
Japan's three megabanks, MUFG Bank, Sumitomo Mitsui Banking Corp. and Mizuho Bank, are likely to gain access to Anthropic's AI model Claude Mythos, according to a person familiar with the matter cited by Bloomberg and Japan Times. Local reporting by Nikkei and Jiji says the banks were informed during U.S. Treasury Secretary Scott Bessent's recent visit to Tokyo and that access could be granted as early as the end of May. Reporting from Kyodo and Bloomberg notes Claude Mythos was released in a limited preview and that Anthropic says the preview "has already found thousands of high-severity vulnerabilities." Bloomberg and other coverage say JPMorgan was the only bank included in the initial partner group under Anthropic's Project Glasswing. Japan's Financial Services Agency is setting up a public-private working group to coordinate responses, Kyodo reports.
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openai
7.3
May 13, 2026
OpenAI launches Daybreak automating vulnerability detection and patching
OpenAI launched Daybreak, a security-focused initiative described on its website as "frontier AI for cyber defenders," to help find, validate, and remediate software vulnerabilities, per OpenAI's Daybreak page. Reporting from The Verge and Decrypt notes Daybreak combines OpenAI models with an agentic Codex Security harness and specialized cyber models such as GPT-5.5-Cyber to build editable threat models, validate likely vulnerabilities in isolated environments, and generate and test patches directly in repositories. OpenAI's Daybreak page says the company is working with "industry and government partners" as it prepares to deploy more cyber-capable models. Coverage emphasizes paired safeguards including scoped access, monitoring, and audit-ready verification.
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openai
7.6
May 13, 2026
GPT-5.5 Matches Mythos in Cyber Vulnerability Tests
The UK AI Security Institute (AISI) evaluated OpenAI's GPT-5.5 and found its offensive cyber capabilities roughly comparable to Anthropic's Claude Mythos Preview, according to reporting by The Decoder and Yahoo/Decrypt. AISI's tests put GPT-5.5 at an average 71.4% pass rate on the most difficult "Expert" tasks versus 68.6% for Claude Mythos, and the model completed a 32-step corporate network simulation in 2 of 10 attempts versus Mythos' 3 of 10, per The Decoder and Yahoo/Decrypt. The AISI report also noted GPT-5.5 solved a reverse-engineering challenge in 10 minutes 22 seconds at an estimated $1.73 API cost, compared with roughly 12 hours for a human, per Yahoo/Decrypt. Politico and Cybernews report OpenAI is offering a limited preview called GPT-5.5-Cyber to vetted defenders under a Trusted Access for Cyber framework. Editorial analysis: For practitioners, these results underscore that general LLM progress is producing stronger dual-use cyber capabilities alongside defensive tooling.
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vulnerability-scanning
7.1
May 13, 2026
OpenAI launches Daybreak security AI platform
The Verge reports that OpenAI is launching Daybreak, an initiative that combines GPT-5.5-Cyber and Codex Security to detect and patch software vulnerabilities. The Verge says Daybreak uses a Codex Security agent to generate a threat model from an organization's code, validate likely vulnerabilities, and automate detection of higher-risk issues. The Verge quotes OpenAI: "Daybreak brings together the most capable OpenAI models, Codex, and our security partners." Anthropic's Project Glasswing materials state Claude Mythos 2 Preview has "already found thousands of high-severity vulnerabilities, including some in every major operating system and web browser," and Anthropic describes using Mythos privately with partner organizations.
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cybersecurity
6.3
May 13, 2026
Cybersecurity Systems Are Unprepared for AI
Today's cybersecurity systems are not ready for AI. The digital economy has led to a U.S. trade surplus in services of around 1 percent of gross domestic product, tying national economic stakes to cybersecurity resilience as AI capabilities advance.
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zero-day
8.6
May 13, 2026
Google Warns AI Accelerates Cyberattacks and Zero-Day Exploits
According to a report by the Google Threat Intelligence Group (GTIG), Google researchers found evidence that a criminal hacking group used an AI model to discover and weaponize a previously unknown zero-day vulnerability in a popular open-source, web-based system administration tool, and the company alerted the vendor to prevent mass exploitation. The GTIG report states, "We have high confidence that the actor likely leveraged an A.I. model to support the discovery and weaponization of this vulnerability," (Google report, quoted in The New York Times). GTIG's analysis notes AI-like patterns in the exploit code, including a "textbook" Python structure, detailed help menus, and an apparent AI hallucination, per Forbes and CSO. Editorial analysis: For practitioners, this marks a notable acceleration in adversary capability and raises signal-to-noise and prioritization challenges for vulnerability management.
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critical-infrastructure
7.0
May 13, 2026
JD Vance Warns Tech CEOs About AI Threats
CryptoBriefing reports Vice President JD Vance told senior tech executives on an April phone call to collaborate on addressing AI-driven threats to US critical infrastructure. Vance is quoted saying, "We all need to work together on this," during the call, per CryptoBriefing. The outlet reports the China-linked hacking group Volt Typhoon has reportedly compromised hundreds of thousands of devices across sectors such as energy and transportation. CryptoBriefing says Vance previously warned then-CISA Director Jen Easterly in a letter about Volt Typhoon's potential to disrupt military power and supply chains. The article reports the administration is pushing critical infrastructure providers toward AI-driven cyberdefensive tools. CryptoBriefing notes the warnings do not explicitly mention cryptocurrency, but says the implications for crypto and decentralized security are material.
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cybersecurity
6.8
May 12, 2026
South Korea expands AI cybersecurity measures after Anthropic warning
According to UPI (reporting Asia Today), South Korea's Ministry of Science and ICT is preparing new measures to counter AI-powered cyberattacks and plans to announce countermeasures as early as late May. The ministry's response follows what officials described as the "Mythos shock," after Anthropic said the unreleased Claude Mythos Preview model can excel at discovering software vulnerabilities. Per UPI, the ministry and the Korea Internet & Security Agency used publicly available AI models to simulate attacks, finding seven vulnerabilities in roughly 10 minutes. The government intends to expand AI-based defensive capabilities, develop domestic models tuned to Korean conditions, and deepen cooperation with global AI firms; officials met with Anthropic representatives and expressed interest in participating in Project Glasswing, UPI reports.
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anthropic
6.9
May 12, 2026
Japan Seeks Access to Anthropic's Claude Mythos
Kyodo and other outlets report that the Japanese government is negotiating with U.S. AI firm Anthropic to obtain access to its latest model, Claude Mythos, amid concerns that the model can identify software vulnerabilities that bad actors could exploit (Kyodo/Mainichi; Japan Today). Prime Minister Sanae Takaichi instructed Cybersecurity Minister Hisashi Matsumoto to consider countermeasures, and Matsumoto said Japan is "exchanging views with the United States" as talks proceed (Japan Today; Mainichi). Sources say access to Claude Mythos, unveiled in April, is currently limited to select tech firms and some financial institutions, and Japan is preparing the technical environment to use the model if access is granted (TipRanks; VOI).
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cybersecurity
6.9
May 12, 2026
Google identifies AI-crafted zero-day, cyber stocks strengthen
CNBC reports that the Google Threat Intelligence Group (GTIG) found, for the first time, a threat actor using an AI-developed zero-day exploit designed to circumvent two-factor authentication, raising alarms about AI-accelerated cyberattacks. CNBC writes that GTIG characterizes this incident as an example of adversaries leveraging AI to automate vulnerability discovery, phishing campaigns, and malware development. The article links that heightened threat environment to stronger investor interest in cybersecurity names, noting that CrowdStrike and Palo Alto Networks rose after returning 44% and 38%, respectively, over the prior month, CNBC reports. CNBC also notes its editorial portfolio carries CrowdStrike as a buy-equivalent 1 rating and Palo Alto as a 3 rating. Editorial analysis: Industry observers often treat evidence of more sophisticated, automated attacks as a catalyst for increased corporate security budgets and investor re-rating of security platform vendors.
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openai
7.2
May 12, 2026
OpenAI Expands EU Access to GPT-5.5-Cyber
OpenAI is granting the European Union and vetted European cybersecurity teams access to a cyber-focused variant of its latest model, GPT-5.5-Cyber, according to CNBC and other reporting. CNBC reports the model was already rolling out in a limited preview to vetted cybersecurity teams and that European Commission spokesperson Thomas Regnier said the Commission had exchanged with OpenAI and welcomed access. CNBC also reports that Anthropic, which released the Mythos model earlier, has not yet granted the EU preview access. DevDiscourse and other outlets report OpenAI is offering access to corporate partners through a "Trusted Access for Cyber" programme and name companies including Deutsche Telekom and BBVA as beneficiaries; those corporate-access claims are attributed to those outlets.
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openai
7.2
May 12, 2026
OpenAI launches Daybreak to find software vulnerabilities
OpenAI launched Daybreak, a cybersecurity platform that uses GPT-5.5 and the Codex agent framework to locate, validate, and help remediate software vulnerabilities. Per OpenAI's product page, Daybreak builds an editable threat model from a repository, focuses analysis on realistic attack paths, and can validate fixes in an isolated environment. MacRumors reports OpenAI offers three GPT-5.5 variants for the product, including GPT-5.5-Cyber and a Trusted Access for Cyber option for verified defensive work, and notes OpenAI said GPT-5.4-Cyber contributed to fixing more than 3,000 vulnerabilities. MacRumors also quotes OpenAI CEO Sam Altman saying the company would like to work with "as many companies as possible" on continuous software security. OpenAI's product page says it is working with industry and government partners as it prepares to deploy additional cyber-capable models. Pricing and wider availability details were not listed in reporting.
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anthropic
6.6
May 12, 2026
Japan PM Orders Cybersecurity Review Over Mythos
According to The Register, Japan's prime minister Sanae Takaichi has ordered a cabinet-level cybersecurity review in response to Anthropic's bug-hunting model Mythos. The Register reports that in a Tuesday cabinet meeting the PM instructed cybersecurity minister Hisashi Matsumoto to check government systems for detectable vulnerabilities and to develop measures so critical infrastructure operators can do likewise. The Register reports the PM said Mythos and similar frontier models may be misused and could increase the speed and scale of attacks. The Register also reports researchers are divided over how novel or dangerous Mythos is compared with prior open-source tools. Editorial analysis: Governments are increasingly treating high-capability bug-finding models as a trigger to reassess infrastructure defence posture.
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anthropic
7.4
May 11, 2026
ASIC Urges Financial Sector to Harden Cybersecurity Against Mythos
Reuters reports that the Australian Securities and Investments Commission (ASIC) published a letter urging the country's financial services industry to take urgent action on cyber risks posed by frontier AI systems such as Mythos. ASIC Commissioner Simone Constant told Reuters that preparedness among Australian financial firms varied widely and that risks can now emerge far faster than under a 12-month planning horizon. Reuters and other outlets note that Mythos, released by Anthropic under a restricted Project Glasswing preview, has high-level coding capabilities and has been used in testing that found numerous vulnerabilities. Macquarie CEO Shemara Wikramanayake told Reuters the bank is running technology programs to test systems against frontier AI models. Reporting by The Next Web and Reuters highlights concerns about the speed at which such models can surface zero-day vulnerabilities.
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ai-safety
7.1
May 9, 2026
JD Vance Convened AI Call After Anthropic Model Exploit
According to TheWrap, Senator JD Vance convened an ad-hoc conference call last month with major tech leaders after a new Anthropic model autonomously found and exploited cybersecurity vulnerabilities. TheWrap reports that attendees included Elon Musk, Sam Altman and other tech CEOs. TheWrap describes the model, Mythos, as having autonomously discovered and then exploited weaknesses in systems that guard banks, hospitals and critical infrastructure. TheWrap frames the call as an AI safety wake-up, prompted by the apparent ease with which Mythos could generate actionable cyberattacks.
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anthropic
7.7
May 9, 2026
Anthropic Limits Access to Claude Mythos Model
Anthropic announced Project Glasswing and a controlled rollout of Claude Mythos Preview, describing the unreleased frontier model as capable of finding "thousands of high-severity vulnerabilities," including in major operating systems and browsers, per Anthropic's Project Glasswing page. Anthropic said it is providing the model to a set of launch partners and more than 40 critical-software organizations, and committed up to $100 million in usage credits and $4 million in donations to open-source security groups, per the same announcement. BBC reports Anthropic is investigating an alleged unauthorized access to Mythos through a third-party vendor, and Bloomberg reported that users in a private forum accessed the model via a contractor account. Security researchers quoted by CNBC and others caution that similar vulnerability-finding capability can be reproduced by orchestrating public models, while Tom's Hardware questions aspects of Anthropic's claims.
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vulnerability-discovery
8.6
May 9, 2026
Anthropic's Mythos Finds Thousands of Zero-Day Vulnerabilities
The Next Web reports that Anthropic's Claude Mythos Preview identified thousands of previously unknown zero-day vulnerabilities across major operating systems and web browsers, including a run that found 271 issues in Firefox and decades-old bugs in OpenBSD and FreeBSD. The Next Web says Anthropic described the model as outperforming all but the most skilled human vulnerability experts in controlled testing. According to The Next Web, Anthropic warned of a six-to-twelve month window before adversaries could replicate the capability and is running a controlled rollout called Project Glasswing with roughly 40 companies and institutions. The Next Web also reports that the Federal Reserve chair and the US Treasury secretary convened bank CEOs to discuss cyber risk following the disclosure. "Moment of danger," Anthropic CEO Dario Amodei said, warning of "some enormous increase in the amount of vulnerabilities, in the amount of breaches, in the financial damage that's done from ransomware on schools, hospitals, not to mention banks," as reported by The Next Web.
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anthropic
8.1
May 9, 2026
Trump Administration Seeks Oversight After Mythos Cyber Risk
Reporting by The Wall Street Journal and The Washington Post says Vice President JD Vance was "alarmed" after a call with AI company leaders about new models including Anthropic's Mythos, which can autonomously find software vulnerabilities. The White House is reportedly exploring tighter oversight, including a possible executive order and an FDA-style pre-release evaluation regime; National Economic Council Director Kevin Hassett told Fortune the administration was studying such measures. The administration has also told Anthropic it opposed expanding Mythos access, The Next Web reported citing Bloomberg, and reporting says a breach during the limited rollout heightened concern. Editorial analysis: Industry observers should treat this as a notable shift in U.S. federal posture toward frontier-model governance, with implications for model release practices and government-industry evaluation workflows.
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frontier-ai
7.0
May 9, 2026
Singapore Tightens Defences Against AI-Enabled Cyber Threats
Coordinating Minister for National Security K Shanmugam urged a "whole-of-country effort" to defend Singapore from AI-enabled cyber threats at a media doorstop on May 9, 2026, saying attackers can "steal sensitive data" and that frontier AI lets less-skilled actors attack faster, cheaper and at scale (reported by CNA, The Straits Times, AsiaOne). The Cyber Security Agency of Singapore (CSA) wrote to boards and senior leaders of all Critical Information Infrastructure (CII) owners on May 5, 2026, urging urgent cybersecurity reviews, according to TheOnlineCitizen. The Infocomm Media Development Authority issued advisory guidance for telcos, CNA reports. Reporting by AsiaOne and Mothership notes that Anthropic said a preview of its model Mythos uncovered "thousands" of major vulnerabilities, and MLex describes the government advancing a "sovereign AI" strategy to strengthen domestic controls and operational use of AI.
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policy-regulation
7.9
May 9, 2026
White House Considers Mandatory Vetting for AI Models
The White House is discussing a government review process for advanced AI models after Anthropic's Mythos demonstrated the ability to surface software vulnerabilities, sources report. The New York Times reported the administration has discussed an executive order to create a working group and a formal pre-release vetting regime; Politico and other outlets said White House officials met with executives from Anthropic, Google, and OpenAI to discuss oversight. Politico quoted National Economic Council Director Kevin Hassett saying the administration is "studying possibly an executive order" that could allow blocking releases deemed unsafe. Fortune reported that the federal agency CAISI said it has completed more than 40 model evaluations under agreements with frontier developers. CNBC and other outlets noted security researchers can reproduce many of the vulnerabilities Mythos revealed using existing models.
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occ
7.0
May 8, 2026
OCC Advises Banks to Strengthen AI Cybersecurity Measures
According to PYMNTS reporting on the Office of the Comptroller of the Currency's spring 2026 report, the OCC described artificial intelligence as both a risk and an opportunity for banks. The OCC recommended that banks mitigate AI-enabled cyber risks by implementing stronger security controls including multifactor authentication and timely patch management, by deploying AI to defend against threats, and by understanding the risks and benefits of advanced AI tools. The OCC said banks have used forms of AI for years and are now exploring generative AI and agentic AI for productivity and customer service. The OCC added that banks should maintain appropriate governance and risk management when implementing AI. PYMNTS also reports the IMF said existing cybersecurity measures must be expanded because attacks are becoming faster, automated, and more sophisticated.
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anthropic
7.6
May 8, 2026
Anthropic Mythos Prompts U.S. AI Oversight Reconsideration
Multiple news outlets report the Trump administration is considering an executive order that would create a government-industry working group and require pre-release evaluation of advanced AI models, a shift framed as a response to national-security risks triggered by Anthropic's new model, Mythos. Fortune reports that the administration's Center for AI Standards and Innovation (CAISI) has agreements with frontier developers enabling government evaluation, and, according to a CAISI press release cited by Fortune, the agency said it has completed more than 40 evaluations. White House National Economic Council Director Kevin Hassett told Fox Business, "We're studying possibly an executive order to give a clear road map..." Tom's Hardware reports the White House briefed Anthropic, OpenAI, and others on the plans. The RSS description also notes Polymarket assigns OpenAI a 26% chance of completing an IPO this year.
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