Cybersecurity Brief – 2025-07-23

Wed, 23 Jul 2025 00:00:00 +0000

Major Incidents or Breaches

AMEOS Group, a large Central European healthcare network, disclosed a security breach potentially exposing customer, employee, and partner information.
Dior confirmed a cyberattack from January 2025 that resulted in the theft of personal information. Payment information was not compromised.
Dell reported a breach of its Customer Solution Center demo environment by the World Leaks group. The company stated the leaked data was synthetic and not from real customers or partners.
A tech startup was found to be selling personal data stolen by infostealer malware and sourced from the dark web.

Microsoft SharePoint: Two critical vulnerabilities (CVE-2025-49704, CVE-2025-49706) are under active exploitation, with CISA adding them to its Known Exploited Vulnerabilities (KEV) catalog. The flaws have been exploited since at least July 7, 2025.
Cisco Identity Services Engine (ISE): Three recently patched critical remote code execution vulnerabilities are being actively exploited, allowing unauthenticated root access.
Helmholz REX 100 Industrial Routers: Eight vulnerabilities, including those enabling full device control, were discovered and patched.
Microsoft Windows Server: KB5062557 update is causing cluster service and virtual machine restart issues.
Coyote Banking Trojan: A new variant is abusing Microsoft’s UI Automation framework to identify and target banking and cryptocurrency exchange sites.

Chinese APTs (Linen Typhoon, Violet Typhoon, Storm-2603): Attributed to the exploitation of SharePoint zero-day vulnerabilities (ToolShell chain) targeting internet-facing SharePoint servers, with activity traced back to early July 2025.
China-backed APT41: Conducted a sophisticated cyber-espionage attack on an African IT company, marking the group’s expansion into new geographic regions.
Russian APTs: Three groups and 18 individuals sanctioned by the UK government for involvement in cyber operations against Ukraine, NATO, and the EU.
Interlock Ransomware: CISA and the FBI reported escalating double extortion attacks targeting businesses and critical infrastructure.
AllaKore RAT, SystemBC, PureRAT, and Hijack Loader: Continued use in credential theft and remote access campaigns, particularly targeting Mexican organizations.
Lumma Infostealer: Resumed operations after law enforcement disruption in May 2025, with the infrastructure gradually coming back online.

Ransomware: Increased double extortion tactics and a notable rise in attacks on critical infrastructure and public sector organizations.
AI-Driven Threats: AI is being used to create convincing fake travel destinations and to clone voices for social engineering scams, as demonstrated in a recent AI voice scam extorting money from a victim.
Fake E-commerce Platforms: Surge in AI-powered scam sites used as attack vectors for data theft and fraud.
Infostealer Malware: The ecosystem for trading stolen personal data is expanding, with startups commercializing access to data harvested by malware.
Windows Accessibility Abuse: Malware such as Coyote is exploiting accessibility frameworks for more targeted credential theft.
Windows 11 Resilience: Microsoft introduced new recovery and resilience features, including a Black Screen of Death and automated recovery tools, in the KB5062660 update.

UK Ransomware Payment Ban: The UK government is planning to prohibit public sector and critical infrastructure organizations from paying ransoms following ransomware attacks.
UK Sanctions: The UK imposed sanctions on Russian APT groups and individuals associated with high-profile cyber operations.
US Coast Guard Cybersecurity Rule: New cybersecurity requirements for maritime transport safety were issued, with phased implementation over two years to secure shipping ports.
China National Cyber ID: China launched a voluntary national Internet identity system aimed at protecting online identities, raising privacy and surveillance concerns.
Darktrace Acquisition: UK-based Darktrace acquired Mira Security to enhance network visibility and encrypted traffic decryption capabilities.