Small world: The revitalization of small AI models for cybersecurity
Sophos X-Ops explores why larger isn’t always better when it comes to solving security challenges with AI
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Marquette County Medical Care Facility discloses data breach
Bys sMarquette County Medical Care Facility (MCMCF) has issued a statement about a breach they discovered in March 2025. On March 3, 2025, MCMCF became aware of the business email compromise incident when contacts of MCMCF’s Human Resources director began receiving phishing emails from her Microsoft Office 365 (O365) account. The types of information involved included…
How federal rules on cybersecurity breach transparency for businesses were challenged in court in 2024
Bys sDom DiFurio reports: In October, four companies collectively paid nearly $7 million as part of a settlement with the Securities and Exchange Commission for allegedly failing to properly inform investors of a cyberbreach affecting their companies, a liability American businesses have not previously faced. The companies were compromised in a cyberattack targeting their IT software provider in…
China’s Great Firewall suffers its biggest leak ever as 500GB of source code and docs spill online — censorship tool has been sold to three different countries
Bys sLuke James reports: Chinese censorship sprang a major leak on September 11, when researchers confirmed that more than 500GB of internal documents, source code, work logs, and internal communications from the so-called Great Firewall were dumped online, including packaging repos and operational runbooks used to build and maintain China’s national traffic filtering system. The files appear to……
Mustang Panda Uses Signed Kernel-Mode Rootkit to Load TONESHELL Backdoor
Bys sThe Chinese hacking group known as Mustang Panda has leveraged a previously undocumented kernel-mode rootkit driver to deliver a new variant of backdoor dubbed TONESHELL in a cyber attack detected in mid-2025 targeting an unspecified entity in Asia. The findings come from Kaspersky, which observed the new backdoor variant in cyber espionage campaigns mounted by…
Bloody Wolf Expands Java-based NetSupport RAT Attacks in Kyrgyzstan and Uzbekistan
Bys sThe threat actor known as Bloody Wolf has been attributed to a cyber attack campaign that has targeted Kyrgyzstan since at least June 2025 with the goal of delivering NetSupport RAT. As of October 2025, the activity has expanded to also single out Uzbekistan, Group-IB researchers Amirbek Kurbanov and Volen Kayo said in a report…
Social Media Security Firm Spikerz Raises $7 Million
Bys sSocial media security startup Spikerz has raised $7 million in a seed funding round led by Disruptive AI. The post Social Media Security Firm Spikerz Raises $7 Million appeared first on SecurityWeek.