STONE-KNIGHT SECURITY

The researcher known as "Nightmare-Eclipse" published a proof-of-concept (PoC) exploit for the Windows Defender vulnerability in early June after dropping several other Microsoft zero-days.

Buffer overflow, DoS, command injection, SSRF, authentication bypass, and other types of vulnerabilities have been found in PAN-OS software. The post Palo Alto Networks Patches 13 Vulnerabilities appeared first on SecurityWeek .

Hackers exploited a zero-day vulnerability in a third-party system to access a KDDI email system for ISPs. The post 12 Million Impacted by Data Breach at Japanese Telco KDDI appeared first on SecurityWeek .

The privilege escalation vulnerability tracked as CVE-2026-50656 has been patched with a Microsoft Malware Protection Engine update. The post Microsoft Patches Defender ‘RoguePlanet’ Vulnerability appeared first on SecurityWeek .

Microsoft has released security updates for a Defender vulnerability known as RoguePlanet, nearly a month after details of the flaw became public. The vulnerability, tracked as CVE-2026-50656 (CVSS score: 7.8), is a privilege escalation issue in the Microsoft Malware Protection Engine ("mpengine.dll"), which provides…

Microsoft has released a security patch to address a Defender zero-day vulnerability known as "RoguePlanet," disclosed after the June 2026 Patch Tuesday. [...]

A cybersecurity startup dangling millions of dollars to acquire zero-day security vulnerabilities in popular software is run by a pair of far-right conspiracy theorists and convicted felons whose most recent ventures included fake intelligence companies and a now-defunct AI-based lobbying platform they operated under…

Added to KEV 2026-07-07. Required action: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or…

Added to KEV 2026-07-07. Required action: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or…

Added to KEV 2026-07-07. Required action: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or…

Added to KEV 2026-07-07. Required action: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or…

Added to KEV 2026-07-01. Required action: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or…

Added to KEV 2026-06-29. Required action: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or…

Added to KEV 2026-06-25. Required action: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or…

Added to KEV 2026-06-25. Required action: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or…

Added to KEV 2026-06-23. Required action: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or…

Added to KEV 2026-06-23. Required action: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or…

Added to KEV 2026-06-23. Required action: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or…

The backdoor’s destructive capabilities include a standalone wiper, ransomware encryption, and a multi-pass wiping command. The post GigaWiper Combines Multiple Malware for System-Level Sabotage appeared first on SecurityWeek .

Researchers demonstrate adversarial hallucination squatting against popular AI assistants to achieve remote code execution. The post ‘HalluSquatting’ Turns AI Hallucinations Into Botnet Delivery Mechanism appeared first on SecurityWeek .

A former employee of cybersecurity incident response company DigitalMint was sentenced to 70 months in prison for targeting U.S. companies in BlackCat (ALPHV) ransomware attacks. [...]

A 41-year-old former ransomware negotiator has been sentenced to nearly six years (i.e., 70 months) in prison in the U.S. for their role in conspiring with the now-defunct BlackCat ransomware operators to extort multiple victims and working with two other cybersecurity professionals to target additional victims in…

A Go module is used to load PowerShell code that fetches a resolver from public dead drops to execute Windows malware. The post Network of 200 GitHub Repositories Used for Malware Infection appeared first on SecurityWeek .

Hackers compromised the Injective Labs SDK project's GitHub repository and used it to publish a malicious package on the Node Package Manager (npm) that stole cryptocurrency wallet private keys and mnemonic seed phrases. [...]

Microsoft has taken apart a destructive Windows backdoor it calls GigaWiper. What stands out is how it is built: not one tool but three older destructive programs bolted into one, offered as commands the operator can choose from. Each is a different way to break a machine: wipe the whole disk, overwrite the Windows…

A new data-extortion group called Helix is using identity-focused tactics such as voice phishing (vishing), device code phishing, and multi-factor authentication (MFA) abuse to steal data from SharePoint environments. [...]

A new phishing-as-a-service (PhaaS) operation called Forg365 focuses on stealing Microsoft 365 accounts by combining adversary-in-the-middle (AiTM) and device code methods with AI-assisted lure generation. [...]

A foreign, financially motivated group was responsible for a cyberattack on state-owned forestry company Latvijas Valsts Mezi (LVM), officials said.

Cybersecurity researchers have flagged a new ransomware family called GodDamn that employs the PoisonX kernel driver to neutralize security software as part of its defense evasion strategy. According to a new report published by the Threat Hunter Team from Symantec, the ransomware was first publicly spotted in the…

Hackers accessed the institution’s internal network and deleted two drives containing employee, student, and university data. The post Mount Royal University Confirms Data Stolen in Ransomware Attack appeared first on SecurityWeek .

Microsoft signed a malicious kernel driver, and now it's being used to kill security software in ransomware attacks.

A financially motivated operation uses lures of cracked or pirated software to deliver a two-for-one malware combo for data theft and cryptomining.

The phishing campaign uses several tactics, including nested redirects, to evade detection and steal credentials from unsuspecting targets.

The Federal Bureau of Investigation (FBI) said today it worked with industry partners to seize hundreds of domains associated with NetNut, a sprawling residential proxy service operated by the publicly-traded Israeli company Alarum Technologies [NASDAQ: ALAR]. The action comes roughly two weeks after KrebsOnSecurity…

For the past four years, a sprawling Android-based botnet called Popa has forced millions of consumer TV boxes to relay Internet traffic linked to advertising fraud, account takeovers, and mass data-scraping efforts. This week, researchers from multiple security firms concluded that the Popa botnet is linked to…

A cybercrime group known as The Gentlemen has emerged as the second most active ransomware gang by victim count, rapidly attracting a talented pool of hackers through an aggressive recruitment strategy that promises affiliates 90 percent of any ransom paid by victims. This post examines clues pointing to a real life…

Security firm Coinspect has disclosed a crypto wallet flaw it calls Ill Bloom, and attackers are already using it. The flaw is in how some wallet software generated its recovery phrase, the words that control the money. When that phrase is made with weak randomness, an attacker can work it out and take everything it…

American insurance company AssuranceAmerica has disclosed a data breach impacting nearly 7 million drivers after attackers gained access to its systems earlier this year. [...]

Mount Royal University in Calgary says hackers stole and then deleted data from its file storage systems after breaching the university's network. [...]

The attacker exploited AI workflows, chained cloud weaknesses, and stolen credentials to extort a large Amazon customer.

Lawmakers in both houses of Congress are demanding answers from the U.S. Cybersecurity & Infrastructure Security Agency (CISA) after KrebsOnSecurity reported this week that a CISA contractor intentionally published AWS GovCloud keys and a vast trove of other agency secrets on a public GitHub account. The inquiry…

The OpenMandriva Linux project announced that it was the target of an attempted act of internal sabotage after a dispute among contributors. [...]

Obscurity isn't a defense. If your company has any Internet-facing vulnerability, you're at risk from multiple threats.

If you're handling them like a service account or API token, consider yourself behind. AI agents need a fundamentally different approach.

Datadog Security Labs is warning of "several overlapping campaigns" that are systematically enumerating corporate GitHub organizations, repositories, and user accounts through the GitHub API. "Operators rely on automated scraping tooling with custom or legitimate-sounding user agents, leveraging GitHub 'ghost'…

Microsoft says Windows users should expect to see an increase in security updates as the company increasingly relies on artificial intelligence to discover vulnerabilities in its codebase. [...]

GitHub has officially announced the release of npm version 12 with install scripts disabled by default, along with deprecating granular access tokens (GATs) designed to bypass two-factor authentication (2FA). The Microsoft-owned subsidiary noted that the following npm install behaviors that used to run automatically…

Most security mess starts as admin work. A link gets clicked. A tool gets trusted. A bucket name gets reused. A setting stays loose because nobody wants to touch it. This week is full of that kind of damage. Not loud. Not clever. Just small gaps doing big jobs. The worst part is how normal it all looks until the bill…

The Israeli company has developed a cryptographic posture and post-quantum cryptography management platform. The post QIZ Security Raises $17 Million for Cryptographic Governance Platform appeared first on SecurityWeek .

The fate of a Ukrainian tax software company shows how modern cyberwarfare can claim casualties far beyond the battlefield, and how businesses across the ocean still need to protect themselves.

Two announcements on July 7, 2026, demonstrate the government’s determination to improve the level of cybersecurity within the UK. The post UK Government Rolls Out Agentic AI Defense Plan Alongside Industry Pledge appeared first on SecurityWeek .

Security operations don't slow down when IT teams take vacation, but staffing levels often do. Kaseya explains how AI-driven automation can help organizations maintain consistent security operations and reduce reliance on manual processes year-round. [...]

NSA last week changed the moniker of its Office of Computer Network Operations (CNO) back to Tailored Access Operations (TAO), a name that is sure to elicit nostalgia among the broader digital community for a group with roots in the early 1990s.

Ireland, Spain, France and the Netherlands are more than 20 months late in transposing the NIS2 Directive for the cybersecurity of critical infrastructure.

A cryptomining incident highlights how AI gateways can provide access to AI models, cloud infrastructure, and identity and access management (IAM) data.

AI has changed how fast attacks move. Work that once took an attacker days now takes minutes. Using models like Mythos, attackers write tailored bait, pick targets, test what lands, and jump to the next host before your team clears the first alert. That is the gap, and it is not your fault. The tools and runbooks…

Affecting every major distribution since 2011, the Linux kernel vulnerability allows attackers to gain root access. The post 15-Year-Old Linux Vulnerability ‘GhostLock’ Earns Researchers $92k From Google appeared first on SecurityWeek .

Microsoft has announced plans to disable Outlook Web Access (OWA) Light, the lightweight version of the Outlook Web App email client, in a future Exchange Server update. [...]

Everyone seems to have announced a clearinghouse over the past few weeks. We did too. Ours is called Athena, and the main thing that sets it apart is that it was already real and running when we announced it — built quietly months earlier, heads down, taking findings and shipping fixes, because customers kept asking…