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. [...]

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 isn’t. Different stories, same basic problem: the path in was often already

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.

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

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. [...]

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 feedback for new applications or features they may be working on before their

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.

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

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.

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.

Tracked as CVE-2026-19490, the authentication bypass flaw has been exploited in the wild since at least September 3. The post Critical NetScaler Vulnerability Exploited in Attacks appeared first on SecurityWeek.

View CSAF Summary Successful exploitation of this vulnerability could allow an authenticated remote attacker to write past the end of a heap allocation when Orthanc decodes an attacker-supplied PNG or JPEG image, resulting in a crash of the Orthanc process and a denial-of-service condition. The following versions of Orthanc DICOM Server are affected: Orthanc DICOM Server <1.13.0. (CVE-2026-87020) CVSS Vendor Equipment Vulnerabilities v3 8.1 Orthanc Orthanc DICOM Server Integer Overflow

View CSAF Summary Successful exploitation of these vulnerabilities could allow an attacker to exfiltrate date or cause a denial-of-service condition. The following versions of NextGen Healthcare Mirth Connect are affected: Mirth Connect <=v4.7.1 (CVE-2026-82583, CVE-2026-78224, CVE-2026-82578) CVSS Vendor Equipment Vulnerabilities v3 8.3 NextGen Healthcare NextGen Healthcare Mirth Connect Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection'), Improper Res

View CSAF Summary Successful exploitation of these vulnerabilities could allow an attacker to disclose information, brute-force hashes, or run arbitrary code in a browser session. The following versions of AVEVA Pipeline Integrity Monitor are affected: AVEVA Pipeline Integrity Monitor <=2025_SP1_P1_build_7.1.9580.8513 (CVE-2026-81821, CVE-2026-81822, CVE-2026-81823, CVE-2026-81824) CVSS Vendor Equipment Vulnerabilities v3 8.4 AVEVA AVEVA Pipeline Integrity Monitor Use of Hard-coded Cry

CISA has added two new vulnerabilities to its Known Exploited Vulnerabilities (KEV) Catalog, based on evidence of active exploitation. CVE-2026-67277 MikroTik RouterOS Missing Authentication for Critical Function Vulnerability CVE-2026-86060 MikroTik RouterOS Improper Neutralization of Argument Delimiters in a Command Vulnerability These types of vulnerabilities are a frequent attack vector for malicious cyber actors and pose significant risks to the federal enterprise. Binding Operational Dir

Anthropic is most concerned about Claude Mythos 5’s reckless behavior after recent incidents in which real systems were hacked. The post Widened Scan Turns Up Fourth Rogue Claude Cyber Incident appeared first on SecurityWeek.

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 Gateways, its firewall appliances. The other affects those gateways and the Security

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 originates from "45.142.193[.]132," an IP address that has been linked to

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 inside it is kept separate from everything in the personal space. That

In June 2026, hackers stole personal, health, and insurance information from AdaptHealth’s systems. The post 4.1 Million Impacted by AdaptHealth Data Breach appeared first on SecurityWeek.

Microsoft has fixed a known issue that wiped mouse settings on some Windows 11 systems after installing the KB5120998 August 2026 preview update. [...]

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Wednesday added three flaws, each impacting Cisco, Citrix, and Fortinet, to its Known Exploited Vulnerabilities (KEV) catalog, requiring Federal Civilian Executive Branch (FCEB) agencies to apply the patches by September 12, 2026. The vulnerabilities are listed below - CVE-2026-20079 (CVSS score: 10.0) - An authentication

Cisco and CISA have flagged exploitation of CVE-2026-20079, a vulnerability disclosed in March 2026. The post Organizations Warned of Cisco Secure FMC Exploitation appeared first on SecurityWeek.

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has confirmed that ransomware gangs are also exploiting a critical WatchGuard Firebox firewall vulnerability, which it flagged as actively exploited in December. [...]

Microsoft says the September 2026 Patch Tuesday updates fix a known issue causing desktop settings to be lost or reset on some Windows devices. [...]

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 administrator credential. Anyone who holds it can read every