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A new exploit kit for Apple iOS devices designed to steal sensitive data from is being wielded by multiple threat actors since at least November 2025, according to reports from Google Threat Intelligence Group (GTIG), iVerify, and Lookout. According to GTIG, multiple commercial surveillance vendors and suspected state-sponsored actors have utilized the full-chain exploit kit, codenamed DarkSword

These rulings prohibit the entities from entering or doing business in the European Union.

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has urged government agencies to apply patches for two security flaws impacting Synacor Zimbra Collaboration Suite (ZCS) and Microsoft Office SharePoint, stating they have been actively exploited in the wild. The vulnerabilities in question are as follows - CVE-2025-66376 (CVSS score: 7.2) - A stored cross-site scripting

In addition to enabling remote access, the malware supports a wide range of capabilities, including data theft and spying.

A sophisticated iOS exploit chain leverages multiple zero-day vulnerabilities and is targeting users in Saudi Arabia, Turkey, Malaysia, and Ukraine.

The U.S. Department of the Treasury's Office of Foreign Assets Control (OFAC) has sanctioned six individuals and two entities for their involvement in the Democratic People's Republic of Korea (DPRK) information technology (IT) worker scheme with an aim to defraud U.S. businesses and generate illicit revenue for the regime to fund its weapons of mass destruction (WMD) programs. "The North Korean

Amazon Threat Intelligence is warning of an active Interlock ransomware campaign that's exploiting a recently disclosed critical security flaw in Cisco Secure Firewall Management Center (FMC) Software. The vulnerability in question is CVE-2026-20131 (CVSS score: 10.0), a case of insecure deserialization of user-supplied Java byte stream, which could allow an unauthenticated, remote attacker to

A prompt injection vulnerability paired with other flaws can turn a Google search into a full attack chain that could threaten enterprise networks.

Tracking pixels let social media companies spy on their users even after they click over to advertiser sites, gleaning credit card info, geolocations, and more, according to an analysis.

The suspected India-linked threat group targets governments, telecom, and critical infrastructure using spear-phishing, old vulnerabilities, and rapidly rotating infrastructure to maintain persistent access.

Cybersecurity researchers have disclosed a critical security flaw impacting the GNU InetUtils telnet daemon (telnetd) that could be exploited by an unauthenticated remote attacker to execute arbitrary code with elevated privileges. The vulnerability, tracked as CVE-2026-32746, carries a CVSS score of 9.8 out of 10.0. It has been described as a case of out-of-bounds write in the LINEMODE Set

CISA has added one new vulnerability to its Known Exploited Vulnerabilities (KEV) Catalog, based on evidence of active exploitation. CVE-2026-20963 Microsoft SharePoint Deserialization of Untrusted Data Vulnerability This type of vulnerability is a frequent attack vector for malicious cyber actors and poses significant risks to the federal enterprise. Binding Operational Directive (BOD) 22-01: Reducing the Significant Risk of Known Exploited Vulnerabilities established the KEV Catalog as a living list of known Common Vulnerabilities and Exposures (CVEs) that carry significant risk to the federal enterprise. BOD 22-01 requires Federal Civilian Executive Branch (FCEB) agencies to remediate identified vulnerabilities by the due date to protect FCEB networks against active threats. See the BOD 22-01 Fact Sheet for more information. Although BOD 22-01 only applies to FCEB agencies, CISA strongly urges all organizations to reduce their exposure to cyberattacks by prioritizing timely remediation of KEV Catalog vulnerabilities as part of their vulnerability management practice. CISA will continue to add vulnerabilities to the catalog that meet the specified criteria.

CISA has added one new vulnerability to its Known Exploited Vulnerabilities (KEV) Catalog, based on evidence of active exploitation. CVE-2025-66376 Synacor Zimbra Collaboration Suite (ZCS) Cross-Site Scripting Vulnerability This type of vulnerability is a frequent attack vector for malicious cyber actors and poses significant risks to the federal enterprise. Binding Operational Directive (BOD) 22-01: Reducing the Significant Risk of Known Exploited Vulnerabilities established the KEV Catalog as a living list of known Common Vulnerabilities and Exposures (CVEs) that carry significant risk to the federal enterprise. BOD 22-01 requires Federal Civilian Executive Branch (FCEB) agencies to remediate identified vulnerabilities by the due date to protect FCEB networks against active threats. See the BOD 22-01 Fact Sheet for more information. Although BOD 22-01 only applies to FCEB agencies, CISA strongly urges all organizations to reduce their exposure to cyberattacks by prioritizing timely remediation of KEV Catalog vulnerabilities as part of their vulnerability management practice. CISA will continue to add vulnerabilities to the catalog that meet the specified criteria.

CISA is aware of malicious cyber activity targeting endpoint management systems of U.S. organizations based on the March 11, 2026 cyberattack against U.S.-based medical technology firm Stryker Corporation, which affected their Microsoft environment.1 To defend against similar malicious cyber activity, CISA urges organizations to harden endpoint management system configurations using the recommendations and resources provided in this alert. CISA is conducting enhanced coordination with federal partners, including the Federal Bureau of Investigation (FBI), to identify additional threats and determine mitigation actions. To defend against similar malicious activity that misuses legitimate endpoint management software, CISA urges organizations to implement Microsoft’s newly released best practices for securing Microsoft Intune; the principles of these recommendations can be applied to Intune and more broadly to other endpoint management software: Use principles of least privilege when designing administrative roles. Leverage Microsoft Intune’s role-based access control (RBAC) to assign the minimum permissions necessary to each role for completing day-to-day operations—permissions include what actions the role can take, and what users and devices it can apply that action to. Enforce phishing-resistant multi-factor authentication (MFA) and privileged access hygiene. Use Microsoft Entra ID capabilities (including Conditional Access, MFA, risk signals, and privileged access controls) to block unauthorized access to privileged actions in Microsoft Intune. Configure access policies to require Multi Admin Approval in Microsoft Intune. Set up policies that require a second administrative account’s approval to allow changes to sensitive or high-impact actions (such as device wiping), applications, scripts, RBAC, configurations, etc. Additionally, CISA recommends reviewing the following resources to strengthen defenses against similar malicious cyber activity: Microsoft resources: For recommendations on securing Microsoft Intune, see Best practices for securing Microsoft Intune. For guidance on implementing Multi Admin Approval in Microsoft Intune, see Use Access policies to implement Multi Admin Approval. For recommendations on configuring Microsoft Intune using zero trust principles, see Configure Microsoft Intune for increased security. For guidance on implementing Microsoft Intune RBAC policies, see Role-based access control (RBAC) with Microsoft Intune. For guidance on deploying Privileged Identity Management (PIM) across Microsoft Intune, Entra ID, and other Microsoft software, see Plan a Privileged Identity Management deployment. CISA resources: For guidance on implementing phishing-resistant multifactor authentication (MFA), see Implementing Phishing-Resistant MFA. Disclaimer The information in this report is being provided “as is” for informational purposes only. CISA does not endorse any commercial entity, product, company, or service, including any entities, products, or services linked within this document. Any reference to specific commercial entities, products, processes, or services by service mark, trademark, manufacturer, or otherwise, does not constitute or imply endorsement, recommendation, or favoring by CISA. Acknowledgements Microsoft and Stryker contributed to this alert. Notes 1 For updates from Stryker on the incident, see “Customer Updates: Stryker Network Disruption,” Stryker, last modified March 15, 2026, https://www.stryker.com/us/en/about/news/2026/a-message-to-our-customers-03-2026.html.

When a Magecart payload hides inside the EXIF data of a dynamically loaded third-party favicon, no repository scanner will catch it – because the malicious code never actually touches your repo. As teams adopt Claude Code Security for static analysis, this is the exact technical boundary where AI code scanning stops and client-side runtime execution begins. A detailed analysis of where Claude

Credential theft soared in the second half of 2025, thanks in part to the industrialization of infostealer malware and AI-enabled social engineering.

When technical expertise meets clear communication, cybersecurity teams thrive. Learn how to foster trust and collaboration across diverse working groups.

Ransomware actors are ditching Cobalt Strike in favor of native Windows tools, as payment rates hit record lows and data theft surges.

In an unsuccessful phishing attack, threat actors leveraged trusted brands and domains to try to redirect a C-suite executive at Outpost24 to give up his credentials.

In a recent attack, the group showcased stealthier cross-network activity, thanks to its use of a new BYOVD technique and other tools.