Capital One has released VulnHunter, an open-source AI-powered application security tool designed to identify exploitable software vulnerabilities before code reaches production. Published under the Apache 2.0 licence, the framework combines agentic reasoning with code analysis to trace how an attacker could move through an application, determine whether a vulnerability is genuinely exploitable, and generate remediation guidance for developers.
Unlike many traditional static analysis tools that begin with suspicious code patterns and work backwards to determine whether they are reachable, VulnHunter adopts what Capital One describes as an attacker-first approach. The framework starts from external entry points such as API endpoints, network message handlers and file upload interfaces before following the application's execution path to assess whether malicious input can successfully bypass existing security controls and reach vulnerable code.
A distinguishing component of the framework is its built-in falsification engine. Rather than presenting every suspected issue to developers, VulnHunter attempts to invalidate its own findings by testing assumptions, examining application logic and identifying conditions that would prevent an exploit from succeeding. Findings that fail these internal verification steps are discarded, while validated issues are accompanied by a detailed explanation of the attack path, supporting evidence gathered from the codebase and a proposed code change that developers can review before deployment.
Capital One said the current implementation operates within Anthropic's Claude Code environment using Claude Opus 4.8, although the framework has been designed with the flexibility to support additional foundation models and coding environments in the future.
The financial institution said it decided to release the project publicly because software supply chains have become increasingly interconnected, making application security a shared challenge rather than one that can be solved by individual organisations. Chris Nims, Capital One's Chief Information Security Officer, said the growing accessibility of AI-driven offensive capabilities has reduced the time defenders have to identify and remediate vulnerabilities before they can be exploited by attackers. By making VulnHunter openly available, the company hopes security researchers and developers will continue improving the framework while strengthening software security across the wider ecosystem.
The release builds on Capital One's wider investment in open-source software and secure software development. The company began publishing open-source projects more than a decade ago, later adopting an open-source-first strategy and expanding its participation in community-driven security initiatives. It has since contributed to dozens of public projects and joined the Open Source Security Foundation (OpenSSF) as a premier member to support collaborative efforts around software supply chain security and governance.
Capital One also said it evaluated VulnHunter internally across thousands of software repositories spanning multiple business units before its public release. According to the company, the framework helped identify and remediate vulnerabilities more efficiently than previous manual review processes by reducing unnecessary alerts and providing developers with evidence-backed remediation guidance.
The announcement comes as organisations increasingly explore AI-assisted approaches to application security in response to the growing use of AI by threat actors to discover software weaknesses, automate exploit development and accelerate attacks. Security teams have also faced persistent challenges with alert fatigue caused by conventional vulnerability scanners that frequently generate false positives requiring extensive manual verification.
Capital One believes embedding security analysis directly into the software development lifecycle can help organisations identify exploitable weaknesses earlier, allowing developers to address issues before applications are deployed. As AI continues to reshape both offensive and defensive cybersecurity capabilities, tools that combine contextual code analysis, automated reasoning and actionable remediation may become an increasingly important part of modern secure software development practices.
The incident happened last week and impacted business operations such as the company’s taxi dispatch system, currently offline.
Nihon Kotsu has an annual revenue of around $1 billion.
The company has 18,228 employees and has 8,588 taxis and over 2000 chauffeur vehicles.
Nihon Kotsu said in a statement, “We have confirmed that our internal systems were subjected to unauthorized external access (malware infection)”. It further added that “immediately after detecting the unauthorized access, we implemented emergency measures, such as disconnecting systems to prevent further damage.”
The company has closed down systems to offline to stop the threat but it has widely caused disruption in services.
The incident has disrupted web booking, car hire, reservation management, few internal systems, and telephone dispatch service.
Nihon Kotsu advised people to use the ‘GO’ taxi app instead, or use a taxi stand for booking a Nihon Kotsu vehicle. It is a major operational damage for a company that has one of Tokyo’s biggest fleets but the manual working is still operational. The hire car reservation system is offline.
In a different announcement, Nihon Kotsu said that the “labor taxi” service for pregnant women is shut down in a few areas.
The firm has brought in external cybersecurity experts to assist in investigating if there has been a data leak. The internal network has been separated to limit further spread.
Currently, no data leak has been confirmed and Nihon Kotsu will provide updates via official channels. “We are currently conducting a detailed investigation with specialized agencies into whether and to what extent data has been leaked. At this time, no information leak has been confirmed. However, in the unlikely event that we discover any leak or potential leak of personal information of our customers or related parties, we will promptly make an official announcement and contact those affected individually, in accordance with the law,” Nihon Kotsu said.
Customers of Nihon Kotsu are cautioned not to click on any links in suspicious communications purporting to be from the company and not to open anything they receive.
Experts discovered a secret browsing-history collector built into its official store variant, and have withdrawn the ModHeader from Google and Microsoft.
An empty allow-list kept the collector switched off and it was dormant, and no proof has surfaced that it retrieved or sent even one browsing domain.
Stripe OLT, a UK cybersecurity organization analyzed the code against Google’s Web Store signature and verified the collector shipped within the authentic extension, not a fake one.
Stripe OLT’s study covers the Chrome build and its 900,000 users (an estimate); and Edge and its 700,000 users. Microsoft removed the listing on July 3rd whereas Google pulled the Chrome listing a week after, on July 10th.
Variant 7.0.18 still edits HTTP headers as shown. The same minimized background also consists of another system. On the first attempt, it makes a device fingerprint and deploys a hardcoded encryption key. As the user browses, it takes the domain from each page that user opens, encodes it, and gathers it locally, up to 1000 different domains.
A scheduler combines your fingerprint with the encrypted list, uploads it to api.stanfordstudies[.]com, and deletes the local copy once a day. If the collector were turned on, browsers using it wouldn't all beacon at once because the upload time is offset per install. The same pipeline is described in separate teardowns by researcher Yunus Aydin on version 7.0.17 and HackIndex on version 7.0.18.
The collector functions only if your browser matches an entry on an internal allow-list, but the list ships empty. Every time, the check fails, and the pipeline stops before it gathers even a single domain.
The small change is populating the list, without any click and no new permissions from the users, sent as a routine update. The endpoint URL, the scheduler, the storage logic, and the hardcoded key are all on the same device.
But not everything was silent. The extension pinged extensions-hub[.]com with the product, version, and browser when it was installed, updated, and uninstalled.
Additionally, it was evident that the piece had been running because a script that runs on every page had already recorded actual request metadata in plain text to local storage.
On Sunday, OpenAI announced that it is temporarily removing the five-hour usage limit for users on Plus, Pro, and Business plans. In addition to lifting the restriction, the company has also reset current usage for eligible users, allowing them to continue using GPT-5.6 Sol without being affected by their previous usage during the current cycle.
"The last 48 hours of Codex and ChatGPT Work have been intense," OpenAI product lead Tibo said in a post on X. "[We're] temporarily removing the 5 hour usage limit restriction for all Plus, Business and Pro plans."
Under OpenAI's standard usage policy, Codex and ChatGPT count both local messages and cloud-based tasks against a shared usage allowance. ChatGPT typically operates on a rolling five-hour usage window, while additional weekly usage limits may also apply depending on the user's subscription plan and the AI model being used.
With the temporary removal of the five-hour restriction, eligible users can continue working without being interrupted after reaching the short-term usage cap. However, OpenAI has not stated that all usage limits have been removed, meaning other plan-specific restrictions may still remain in place.
Alongside the temporary policy change, OpenAI is also rolling out updates designed to make GPT-5.6 Sol more efficient. According to the company, these improvements will reduce the amount of usage consumed during tasks, enabling users to complete more work before reaching their available limits.
"[We are] rolling out changes that will make GPT-5.6 Sol more efficient across the board and that will be reflected in less usage being used so that it can take you further," Tibo said.
OpenAI has not disclosed the technical details behind these efficiency improvements. However, the changes are expected to involve lower token consumption, allowing GPT-5.6 Sol to process tasks more efficiently while using fewer resources.
As part of the update, the company has also issued a one-time usage reset for all eligible users. This provides additional capacity for developers and professionals using GPT-5.6 Sol for coding, automation, and agentic workflows. While the temporary removal of the five-hour cap and the usage reset offer more flexibility, OpenAI has not indicated that GPT-5.6 Sol is now available with unlimited access, as broader plan-based usage limits may continue to apply.
Instead of directly disrupting corporate headquarters, hackers gained access via third-party infrastructure, subsidiaries, and overseas operations.
The impacted organizations are Nidec, KDDI, Aflac Japan, and Sapporo Holdings. While the attacks involved different contexts, the incidents hint towards an increasing attack surface that expands well beyond a company’s primary network.
KDDI, a telecommunications provider, reported illegal access to an email platform used by various Japanese internet service providers.
KDDI reported the incident surfaced from a bug in third-party software, revealing around 14.22 million email account records throughout six ISPs.
The attack shows how a single bug inside shared infrastructure can impact various organizations continuously.
On June 30, Aflac Japan revealed that between June 15 and June 25, hackers gained access to its Japanese operations. The company claims that some 4.38 million clients and agents were impacted, and a portion of the documents included bank account details used to pay insurance premiums.
According to the insurance, the incident only affected its company in Japan and had no bearing on its operations in the United States.
The alleged tactics are similar to social engineering strategies previously linked to Scattered Spider, even though the business has not linked the attack to any particular threat organization.
Sapporo Holdings revealed possible illegal access involving two foreign subsidiaries, Canadian brewer Sleeman and Singapore-based Pokka. After identifying suspicious activity, the company shut down the impacted systems and started an investigation to find out if any data had been taken or accessed.
Nidec, a manufacturing company, has revealed that its Taiwanese subsidiary, Nidec Chaun Choung Technology, was the subject of a ransomware attack.
More than two gigabytes of firm data, including personnel, financial, procurement, manufacturing, legal, and IT information, were allegedly taken by the BlackField ransomware organization, which claimed responsibility for the attack. A $2 million ransom was allegedly demanded by the organization.
The technology industry's next computing platform may not fit in your hand. Instead, it could rest on your ears, sit on your face or hang around your neck.
Apple is reportedly exploring AirPods equipped with cameras that would give Siri the ability to interpret a user's surroundings, according to a Bloomberg report. The cameras are not expected to function like traditional smartphone cameras for photography or video recording. Instead, they would provide visual context that allows Apple's AI assistant to respond more intelligently to spoken requests. Apple has not commented on the report.
The development reveals a comprehensive industry effort to move everyday computing beyond smartphone screens. For decades, displays have served as the primary interface between people and their devices. Advances in artificial intelligence, computer vision and voice assistants are now encouraging technology companies to develop wearable devices that can understand a user's environment and respond without requiring constant screen interaction.
Snap recently expanded that vision with its latest augmented reality smart glasses, Specs, priced at £1,995 in the UK and $2,195 in the US. Unlike many existing smart glasses, the device is designed to operate independently rather than relying on a connected smartphone. Digital content appears only when needed, overlaying information onto the wearer's view of the real world instead of replacing it. Snap Chief Executive Evan Spiegel said the goal is to let users remain engaged with their surroundings while accessing digital experiences.
Meta is also increasing its investment in wearable AI. The company has reportedly sold around seven million pairs of its Ray-Ban Meta smart glasses and recently introduced more affordable models. Reports also indicate Meta is evaluating audio-only smart glasses that could reduce some of the privacy concerns associated with built-in cameras.
Those concerns remain one of the biggest obstacles to wider adoption. Camera-equipped wearables have faced criticism after users were found recording people without their knowledge, despite recording indicator lights intended to alert those nearby. Privacy advocates continue to question whether visible indicators alone provide sufficient transparency in public spaces.
Apple could attempt to distinguish itself by relying heavily on on-device processing, allowing visual information to be analyzed locally rather than stored or transmitted to cloud servers. Such capabilities could enable users to identify objects, receive navigation guidance, ask questions about nearby landmarks or generate recipe suggestions based on ingredients already in their kitchen through simple voice interactions.
Analysts believe AI-powered wearables could gradually shift some everyday computing tasks away from smartphones. Even so, most expect the smartphone to remain central to digital life for the foreseeable future, with wearable devices evolving as complementary tools rather than direct replacements. Whether they ultimately reduce screen time or simply expand the ways people interact with technology remains an open question.