New MacSync malware dropper evades macOS Gatekeeper checks

The latest variant of the MacSync information stealer targeting macOS systems is delivered through a digitally signed, notarized Swift application. Security researchers at Apple device management platform Jamf say that the distribution method constitutes a significant evolution from past iterations that used less sophisticated “drag-to-Terminal” or ClickFix tactics. “Delivered as a code-signed and notarized Swift application within […]

Interpol-led action decrypts 6 ransomware strains, arrests hundreds

An Interpol-coordinated initiative called Operation Sentinel led to the arrest of 574 individuals and the recovery of $3 million linked to business email compromise, extortion, and ransomware incidents. Between October 27 and November 27, the investigation, which involved law enforcement in 19 countries, took down more than 6,000 malicious links and decrypted six distinct ransomware […]

Romanian water authority hit by ransomware attack over weekend

Romanian Waters (Administrația Națională Apele Române), the country’s water management authority, was hit by a ransomware attack over the weekend. Officials with the National Cyber Security Directorate (DNSC) said Sunday that the incident impacted approximately 1,000 computer systems at the national water authority and 10 of its 11 regional offices. While the breach affected servers running geographic […]

RansomHouse upgrades encryption with multi-layered data processing

The RansomHouse ransomware-as-a-service (RaaS) has recently upgraded its encryptor, switching from a relatively simple single-phase linear technique to a more complex, multi-layered method. In practice, the upgrades offer stronger encryption results, faster speeds, and better reliability on modern target environments, giving threat actors stronger leverage during post-encryption negotiations. RansomHouse launched in December 2021 as a data […]

Nigeria arrests dev of Microsoft 365 ‘Raccoon0365’ phishing platform

The Nigerian police arrested three individuals linked to targeted Microsoft 365 cyberattacks via Raccoon0365 phishing platform. The attacks led to business email compromise, data breaches, and financial losses affecting organizations worldwide. The law enforcement operation was possible thanks to intelligence from Microsoft, shared with the Nigeria Police Force National Cybercrime Centre (NPF–NCCC) via the FBI. The […]

Microsoft 365 accounts targeted in wave of OAuth phishing attacks

Multiple threat actors are compromising Microsoft 365 accounts in phishing attacks that leverage the OAuth device code authorization mechanism. Attackers trick victims into entering a device code on Microsoft’s legitimate device login page, unknowingly authorizing an attacker-controlled application and granting them access to the target account without stealing credentials or bypassing multi-factor authentication (MFA). Although the […]

New UEFI flaw enables pre-boot attacks on motherboards from Gigabyte, MSI, ASUS, ASRock

The UEFI firmware implementation in some motherboards from ASUS, Gigabyte, MSI, and ASRock is vulnerable to direct memory access (DMA) attacks that can bypass early-boot memory protections. The security issue has received multiple identifiers (CVE-2025-11901, CVE-2025‑14302, CVE-2025-14303, and CVE-2025-14304) due to differences in vendor implementations DMA is a hardware feature that allows devices such as graphics […]

Over 25,000 FortiCloud SSO devices exposed to remote attacks

Internet security watchdog Shadowserver has found over 25,000 Fortinet devices exposed online with FortiCloud SSO enabled, amid ongoing attacks targeting a critical authentication bypass vulnerability. Fortinet noted on December 9th, when it patched the security flaw tracked as CVE-2025-59718 (FortiOS, FortiProxy, FortiSwitchManager) and CVE-2025-59719 (FortiWeb), that the vulnerable FortiCloud SSO login feature is not enabled until […]