Latest cybersecurity reporting from selected sources.

KDDI Corporation disclosed a breach affecting up to 14.2 million email accounts after attackers exploited a vulnerability in third-party software. KDDI Corporation disclosed a data breach that exposed up to 14.2 million email accounts across six Japanese internet service providers. KDDI Corporation is one of Japan’s largest telecommunications companies. It employs more than 60,000 people […]

Cybersecurity researchers are calling attention to a new campaign where threat actors are abusing FortiGate Next-Generation Firewall (NGFW) appliances as entry points to breach victim networks.  The activity involves the exploitation of recently disclosed security vulnerabilities or weak credentials to extract configuration files containing service account credentials and network topology

Eurofiber France disclosed a data breach it discovered late last week when hackers gained access to its ticket management system by exploiting a vulnerability and exfiltrated information. [...]

Also, North Korean Hackers Remotely Wipe Android DevicesThis week, the U.K. government probed Chinese electric buses for a kill switch, APT37 abused Google's Find Hub in South Korea, Conduent said its January hack will cost it more, Hyundai disclosed a breach and Patch Tuesday. OWASP added two new categories to its Top 10 web application vulnerabilities.

Threat actors with ties to China exploited the ToolShell security vulnerability in Microsoft SharePoint to breach a telecommunications company in the Middle East after it was publicly disclosed and patched in July 2025

U.S. cybersecurity company F5 on Wednesday disclosed that unidentified threat actors broke into its systems and stole files containing some of BIG-IP's source code and information related to undisclosed vulnerabilities in the product

U.S. cybersecurity company F5 disclosed that nation-state hackers breached its systems and stole undisclosed BIG-IP security vulnerabilities and source code. [...]

Harvard University is investigating a data breach after the Clop ransomware gang listed the school on its data leak site, saying the alleged breach was likely caused by a recently disclosed zero-day vulnerability in Oracle's E-Business Suite servers. [...]

Pi-hole, a popular network-level ad-blocker, has disclosed that donor names and email addresses were exposed through a security vulnerability in the GiveWP WordPress donation plugin. [...]

A recently disclosed critical security flaw impacting SAP NetWeaver is being exploited by multiple China-nexus nation-state actors to target critical infrastructure networks

Threat actors have been observed exploiting two newly disclosed critical security flaws in Craft CMS in zero-day attacks to breach servers and gain unauthorized access

Ransomware attacks have reached an unprecedented scale in the healthcare sector, exposing vulnerabilities that put millions at risk. Recently, UnitedHealth revealed that 190 million Americans had their personal and healthcare data stolen during the Change Healthcare ransomware attack, a figure that nearly doubles the previously disclosed total.  This breach shows just how deeply ransomware

The .uk registry Nominet has been breached by a recently disclosed zero-day vulnerability in Ivanti products

US Bitcoin ATM operator Byte Federal has disclosed a data breach that exposed the data of 58,000 customers after its systems were breached using a GitLab vulnerability. [...]

A recently disclosed Microsoft SharePoint remote code execution (RCE) vulnerability tracked as CVE-2024-38094 is being exploited to gain initial access to corporate networks. [...]

Also: Critical WHOIS Vulnerability Exposes Internet Security Flaw in .mobi DomainsThis week, cyberthreats rising in Mexico; FBI warned of BEC scams; U.K. police arrested hacking suspect; Avis, Slim CD, Medicare and Fortinet disclosed breaches; Highline public schools reopened after cyberattack; a critical flaw was found in WHOIS; and Konni upped attacks on Russia, South Korea.

Four unpatched security flaws, including three critical ones, have been disclosed in the Gogs open-source, self-hosted Git service that could enable an authenticated attacker to breach susceptible instances, steal or wipe source code, and even plant backdoors

A financially motivated threat actor called Magnet Goblin is swiftly adopting one-day security vulnerabilities into its arsenal in order to opportunistically breach edge devices and public-facing services and deploy malware on compromised hosts

Also: A Widespread Linux Bootloader VulnerabilityThis week, the U.S. banned AI robocalls, researchers discovered a Linux bootloader flaw, France investigated health sector hackings, the feds offered money for Hive information, Verizon disclosed an insider breach, Germany opened a cybersecurity center, and cyberattack victims reported high costs.

Federal Contractor Must Comply With New Reporting Measures Following Data BreachGlobal Tel*Link, a major telecommunications provider for state and federal prison systems, will be required to notify the FTC and consumers of future security incidents after a sweeping data breach left hundreds of thousands of its users vulnerable to identity theft and other privacy concerns.