Scattered Spider hackers are targeting US critical infrastructure via VMware attacks

The infamous ScatteredSpider ransomware group is using VMware instances to target critical infrastructure organizations in the US, researchers have warned. In the campaign, the hackers do not exploit any vulnerabilities, but instead go for “aggressive, creative, and particularly skilled” social Read More …

Russia: Aeroflot cancels dozens of flights after hacker attack paralyzes IT systems

Russia’s Aeroflot airline has cancelled 49 round-trip flights to and from Moscow due to an IT system failure, the air carrier reported. The press service of the Prosecutor General’s Office of Russia said that the airline’s information systems were brought Read More …

NASCAR confirms user data breach following Medusa ransomware attack

NASCAR has confirmed it suffered a cyberattack and a data breach in April 2025 which saw personal information of racing fans allegedly stolen. The organization filed data breach reports with attorneys general in multiple US states, describing what had happened, Read More …

In-Depth Analysis of an Obfuscated Web Shell Script

This analysis is a follow-up to the investigation titled ‘Intrusion into Middle East Critical National Infrastructure’, conducted by the FortiGuard Incident Response Team (FGIR), which investigated a long-term cyber intrusion targeting critical national infrastructure (CNI) in the Middle East. The Read More …

Allianz Life says ‘majority’ of customers’ personal data stolen in cyberattack

U.S. insurance giant Allianz Life has confirmed to TechCrunch that hackers stole the personal information of the “majority” of its customers, financial professionals, and employees during a mid-July data breach. When reached by TechCrunch, Allianz Life spokesperson Brett Weinberg confirmed Read More …

Muddled Libra Threat Assessment: Further-Reaching, Faster, More Impactful

Unit 42 has tracked and responded to several waves of intrusion operations conducted by the cybercrime group we track as Muddled Libra (aka Scattered Spider, UNC3944) across different sectors in recent months. This article contains observations on Muddled Libra thus Read More …

ToolShell: a story of five vulnerabilities in Microsoft SharePoint

On July 19–20, 2025, various security companies and national CERTs published alerts about active exploitation of on-premise SharePoint servers. According to the reports, observed attacks did not require authentication, allowed attackers to gain full control over the infected servers, and Read More …

Mitel Releases Security Advisories for MiVoice MX-One and MiCollab

Mitel has released security advisories to address vulnerabilities in Mitel MiVoice MX-ONE and MiCollab, which are cloud-based platforms that help manage business communications. The critical vulnerability, which has no CVE identifier at the time of publishing this Cyber Alert, affects Read More …