STONE-KNIGHT SECURITY

Microsoft has fixed a bug that prevented Teams and Outlook from launching on ARM-based Windows devices after installing updates released since the August 2026 Patch Tuesday. [...]

Cisco has revealed that three distinct threat clusters linked to ransomware and state-sponsored attacks have been exploiting two recently patched Secure Firewall Management Center (FMC) vulnerabilities. The attacks leverage CVE-2026-20079 (CVSS score: 10.0), an authentication bypass vulnerability in the web interface…

The disgruntled researcher continued their vendetta against Microsoft by publishing yet another zero-day exploit for Windows Defender.

Multiple cyber-espionage groups deployed an exploit kit dubbed "BlueMoon" that leveraged zero-day vulnerabilities in Microsoft Windows and Google Chrome. [...]

Check Point has patched two critical vulnerabilities in the way its firewall and management products handle VPN certificates. The company says both could allow an unauthenticated remote attacker to run code, but only "under specific conditions" that it has not described. One flaw affects Check Point's Security…

Added to KEV 2026-09-10. 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 2026-09-10. 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 2026-09-09. 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 2026-09-09. 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 2026-09-09. 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 2026-09-09. 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…

Attackers are actively exploiting two of the vulnerabilities, and another 58 are more likely to be exploited, according to Microsoft.

Added to KEV 2026-09-08. 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 2026-09-08. 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 2026-09-08. 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 2026-09-08. 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 2026-09-04. 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 2026-09-02. 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…

Anthropic reveals how criminal groups are increasingly targeting AI vendors' own infrastructure, including to steal a pre-release Claude model. The post Anthropic Says Russian Hackers Used Claude AI to Automate Malware Evasion appeared first on SecurityWeek .

Trezor has revealed that phishing attacks against its customers earlier this week targeted 347,000 email addresses and affected 2,500 users who clicked an embedded malicious link. [...]

A China-linked hacking group exploited a flaw in Sogou Input Method, one of the most widely used tools for typing Chinese characters on Windows, to install a backdoor on victims' computers, security company Gen Digital said in research published Thursday. The attack started with a crafted link and ended with the…

A Ukrainian national has been sentenced to four years in prison for his role in Conti ransomware attacks between 2021 and 2022. [...]

The GoldFactory threat group exploits the Android Work Profile feature to deliver the Gigabud Trojan, while Mantax Otax spreads separately.

A new Android malware strain called Mantax Otax combines ransomware and spyware capabilities to encrypt files, steal sensitive data, and spam and harass victims. [...]

A lot of this week’s security news has the same awkward answer to one question: “Why was that allowed to work?” An extension asks for access and takes too much. A trusted service becomes part of a phishing chain. An old bug still gets results. An exposed system stays exposed. A package looks useful right up until it…

A threat actor, likely Russian-speaking, used hundreds of AI agents to develop and launch a global exploitation campaign targeting vulnerable PaperCut NG/MF servers. [...]

Cisco Talos says two recently patched Secure Firewall Management Center (FMC) vulnerabilities have been exploited by three separate threat clusters linked to ransomware and state-sponsored attacks. [...]

The Gigabud banking trojan now installs a second Android app that creates a work profile on an infected phone and drops a tampered banking app inside it, security firm Group-IB said in a report published on September 9. A work profile is a separate space that Android typically reserves for employer apps, and what's…

Threat actors are abusing multiple Google services to evade detection, ultimately harvesting credentials or installing ScreenConnect remote access.

A Chinese-language group is compromising government and education sites to create a reverse-proxy network with gambling-themed sites.

Financials have not been disclosed, but the estimated cost is in the tens of millions of dollars. The post Kiteworks Acquires Bonfy.AI to Fill the AI Gap in Data Governance appeared first on SecurityWeek .

Threat actors are leveraging Microsoft's Graph API to identify lucrative targets, then passing their access to extortion groups like ShinyHunters.

Surfshark disclosed that hackers accessed one of its internal test servers after a configuration error exposed it to the internet. [...]

A notice dated September 4 but not widely shared shows that IDScan acknowledged a data breach but did not specify how many people were affected.

Identity verification company IDScan has confirmed that hackers accessed customer data stored in its cloud platform, days after reports linked the company to a massive database containing more than 153 million driver's license scans. [...]

A suspected Russian-speaking cyber actor has been attributed to the use of artificial intelligence (AI) to devise exploits targeting a recently disclosed pair of security flaws in PaperCut NG/MF and break into hundreds of instances. According to independent reports from Blackpoint Cyber and GreyNoise, the activity…

Nearly one in ten of the internet-facing LiteLLM servers that Wiz Research scanned in February accepted sk-1234, the example admin key in LiteLLM's own setup guide. LiteLLM is an open-source AI gateway, the software a company puts between its applications and the model providers it pays for. That key is the gateway's…

Anthropic on Wednesday disclosed a fourth incident in which its artificial intelligence (AI) model broke into real third-party systems, marking the latest in a growing list of cases that have raised concerns about the security risks posed by autonomous AI agents. The AI company said the incident dates back to January…

An analysis of Project Glasswing findings shows only a fraction of the bugs it has discovered have reached disclosure, and an even smaller number have been fixed.

Authorities in Australia have arrested two men believed to be members of TeamPCP, a prolific cybercrime and data extortion group blamed for perpetrating the longest running spree of software supply chain attacks ever. In a statement released today, the Australian Federal Police (AFP) said two unnamed suspects from…

The Cybersecurity and Infrastructure Security Agency (CISA) has issued a postmortem on a data leak in which a contractor published dozens of internal CISA credentials -- including AWS Govcloud keys -- in a public GitHub repository for almost six months before being notified by KrebsOnSecurity. Experts say the gaps…

A misconfigured test server containing engineering material, including internal configurations, was accessed by threat actors. The post Surfshark Systems Targeted by Hackers appeared first on SecurityWeek .

A Russian threat actor used AI to build, test, and deploy exploits against hundreds of organizations worldwide. The post PaperCut Flaws Exploited in AI-Powered Attacks appeared first on SecurityWeek .

Attackers have chained two flaws in JFrog Artifactory, the repository that software build pipelines pull from, to take administrator control of self-hosted servers and plant backdoors, cloud security company Wiz said in a report. Wiz saw the attacks between August 15 and September 8. JFrog had fixed both flaws before…

PaperCut on Thursday released a new security maintenance release that replaces all previously published emergency patches that were pushed to address two security flaws that have come under active exploitation. The software development company said PaperCut NG/MF versions 26.0.5, 25.0.13 and 24.1.10 are now available…

As the cyber scam industry expands globally, the U.S. government wants banks to share more information about what's happening to their customers.

Windows admins report that the September 2026 security updates are causing Remote Desktop Services (RDS) failures on Windows Server 2019, 2022, and 2025 servers, preventing users from connecting and, in some cases, requiring a hard reset to restore functionality. [...]

Mandiant founder and cybersecurity veteran brings more than 30 years of public and private sector experience to Amazon’s board. The post Mandiant Founder Kevin Mandia Joins Amazon Board appeared first on SecurityWeek .

Microsoft Excel users report that this week's KB5002914 Office security update is breaking copy-and-paste operations and formula dragging, with affected users saying that removing or rolling back the update restores normal functionality. [...]

Ronzelle Green, most recently a senior official at the National Geospatial-Intelligence Agency, will be U.S. Cyber Command's chief AI officer.

Significant cybersecurity M&A deals announced by Brinqa, Cribl, Echo, Fortinet, Kiteworks, Palo Alto Networks, and Visa. The post Cybersecurity M&A Roundup: 33 Deals Announced in August 2026 appeared first on SecurityWeek .

Both Anthropic and OpenAI have seen high-profile resignations in recent years that were tied to safety concerns. The post Anthropic Researcher Resigns With Warning About the Dangers of AI Development appeared first on SecurityWeek .

Bad actors are misusing Google Play's Early Access program to push deceptive apps that claim to offer money, rewards, casino winnings, and premium content. Early Access apps are apps that haven't been released on the official Android app marketplace. The main idea behind the program is for developers to solicit user…

Vinnie Liu was recruited by the NSA when he was just 17 years old. He is now the CEO of Bishop Fox. The post Hacker Conversations: Vinnie Liu, Performer Turned Ringmaster appeared first on SecurityWeek .

Identity was the target in roughly half of all confirmed malicious activity. Prophet Security breaks down the four main attack patterns seen across customer environments between May and July 2026, and explains why some attacks succeeded while others were blocked. [...]

Deceptive apps in Early Access are being used by dishonest developers for their own benefit. The post Deceptive Android Apps Exploit Google Play Early Access to Evade Reviews appeared first on SecurityWeek .

Wildberries told several Russian media outlets earlier this week that payments to some sellers were delayed by security measures introduced after a distributed denial-of-service (DDoS) attack targeted systems used to track and withdraw their earnings.

Join the webinar for a focused, 20-minute discussion on Frontier Pace Governance, an approach to balancing automation, policy, and business risk as IT operations accelerate. The post Webinar Today: Keep Pace With AI – A New Operating Model for Endpoint Remediation appeared first on SecurityWeek .

The individual has not yet been avowed — the formal process in Britain by which an intelligence or security figure’s identity is publicly acknowledged — as routine security considerations are still being worked through.