Cyber Defense Advisors

News

Security Vulnerabilities in ICEBlock

The ICEBlock tool has vulnerabilities: The developer of ICEBlock, an iOS app for anonymously reporting sightings of US Immigration and Customs Enforcement (ICE) officials, promises that it “ensures user privacy by storing no personal data.” But that claim has come under scrutiny. ICEBlock creator Joshua Aaron has been accused of making false promises regarding user […]

Cyber News

CTEM vs ASM vs Vulnerability Management: What Security Leaders Need to Know in 2025

The modern-day threat landscape requires enterprise security teams to think and act beyond traditional cybersecurity measures that are purely passive and reactive, and in most cases, ineffective against emerging threats and sophisticated threat actors. Prioritizing cybersecurity means implementing more proactive, adaptive, and actionable measures that can work together to effectively address the threats that most […]

Cyber News

Chinese Hackers Target Taiwan’s Semiconductor Sector with Cobalt Strike, Custom Backdoors

The Taiwanese semiconductor industry has become the target of spear-phishing campaigns undertaken by three previously undocumented Chinese state-sponsored threat actors. “Targets of these campaigns ranged from organizations involved in the manufacturing, design, and testing of semiconductors and integrated circuits, wider equipment and services supply chain entities within this sector, as well as financial investment analysts […]

Cyber News

Cisco Warns of Critical ISE Flaw Allowing Unauthenticated Attackers to Execute Root Code

Cisco has disclosed a new maximum-severity security vulnerability impacting Identity Services Engine (ISE) and Cisco ISE Passive Identity Connector (ISE-PIC) that could permit an attacker to execute arbitrary code on the underlying operating system with elevated privileges. Tracked as CVE-2025-20337, the shortcoming carries a CVSS score of 10.0 and is similar to CVE-2025-20281, which was […]

Cyber News

Hackers Leverage Microsoft Teams to Spread Matanbuchus 3.0 Malware to Targeted Firms

Cybersecurity researchers have flagged a new variant of a known malware loader called Matanbuchus that packs in significant features to enhance its stealth and evade detection. Matanbuchus is the name given to a malware-as-a-service (MaaS) offering that can act as a conduit for next-stage payloads, including Cobalt Strike beacons and ransomware. First advertised in February […]

Cyber News

Hacking Trains

Seems like an old system system that predates any care about security: The flaw has to do with the protocol used in a train system known as the End-of-Train and Head-of-Train. A Flashing Rear End Device (FRED), also known as an End-of-Train (EOT) device, is attached to the back of a train and sends data […]

Cyber News

Police dismantle DiskStation ransomware gang targeting NAS devices, arrest suspected ringleader

“Operation Elicius”, a joint international law enforcement operation involving Europol and police forces in Italy, France, and Romania, has successfully dismantled a Romanian ransomware gang that targeted network-attached storage (NAS) devices and arrested its suspected leader. The so-called “DiskStation Security” ransomware group has targeted and compromised NAS devices – particularly those manufactured by Synology – […]

Cyber News

UNC6148 Backdoors Fully-Patched SonicWall SMA 100 Series Devices with OVERSTEP Rootkit

A threat activity cluster has been observed targeting fully-patched end-of-life SonicWall Secure Mobile Access (SMA) 100 series appliances as part of a campaign designed to drop a backdoor called OVERSTEP. The malicious activity, dating back to at least October 2024, has been attributed by the Google Threat Intelligence Group (GTIG) to a hacking crew it […]

Cyber News

Critical Golden dMSA Attack in Windows Server 2025 Enables Cross-Domain Attacks and Persistent Access

Cybersecurity researchers have disclosed what they say is a “critical design flaw” in delegated Managed Service Accounts (dMSAs) introduced in Windows Server 2025. “The flaw can result in high-impact attacks, enabling cross-domain lateral movement and persistent access to all managed service accounts and their resources across Active Directory indefinitely,” Semperis said in a report shared […]

Cyber News