Login
HN Monitor

A critical vulnerability in Microsoft 365 Copilot Enterprise Search, dubbed “SearchLeak” by researchers, allowed attackers to potentially exfiltrate sensitive user data, including emails and calendar details, with a single click. This discovery highlights a new attack vector chaining together existing web vulnerabilities with an AI-specific weakness. Varonis Threat Labs researchers…

The cybersecurity landscape continues to be a battleground of innovation and exploitation, with attackers consistently finding new ways to leverage existing vulnerabilities and emerging technologies. This week’s recap highlights a series of concerning trends, from actively exploited zero-days in widely used software to the sophisticated abuse of phishing kits and…

Palo Alto Networks VPN vulnerability, identified as CVE-2026-0257, is being actively exploited by an unknown threat actor to gain unauthorized access to GlobalProtect portals. The critical authentication bypass flaw, which affects the portal and gateway components of PAN-OS software, carries a CVSS score of 7.8 and allows malicious actors to…

Splunk has issued critical security updates to address CVE-2026-20253, a severe vulnerability in Splunk Enterprise that allows unauthenticated users to perform arbitrary file operations and potentially achieve remote code execution. Rated 9.8 on the CVSS scoring system, the flaw presents a significant risk to enterprise environments utilizing the affected software.…

U.S. law enforcement agencies, in collaboration with international partners, have seized multiple internet domains alleged to have hosted nonconsensual AI-generated pornography. The operation targeted websites that specialized in creating and distributing digitally altered images and videos of women without their consent. The domains, CFAKE.com and SOCFAKE.com, are accused of publishing…

Cybersecurity researchers have unveiled a novel attack technique, dubbed “Agentjacking,” that subverts artificial intelligence (AI) coding agents, compelling them to execute arbitrary code on developer workstations. This groundbreaking vulnerability exploits a fundamental architectural weakness at the intersection of error tracking platforms and AI agents, potentially granting attackers unfettered access to…

Cybercriminals are exploiting Blender, a popular open-source 3D modeling software, to distribute the notorious StealC V2 infostealer. Threat actors are uploading malicious .blend files containing embedded Python scripts to asset platforms like CGTrader. When users open these files in Blender with the Auto Run Python Scripts feature enabled, the scripts…

Cybersecurity authorities, including the U.S. Cybersecurity and Infrastructure Security Agency (CISA), have issued a stern warning regarding sophisticated commercial spyware targeting users of highly encrypted messaging applications like Signal and WhatsApp. These advanced threats, identified as emerging in 2025, are being actively deployed by various threat actors to compromise smartphones…

The sophisticated threat actor known as ToddyCat has been observed employing new and evolving tactics to pilfer corporate email data, notably through the use of a custom-built tool named TCSectorCopy. This innovative approach allows attackers to bypass traditional security measures and directly access sensitive communications within targeted organizations. According to…

The 2025 Black Friday shopping season has become a significant focal point for cybercriminals, with threat actors recording over 2 million phishing attacks targeting online gamers and shoppers worldwide. As global e-commerce experiences consistent annual growth, attackers are increasingly adapting their strategies to exploit the heightened activity, reduced user vigilance,…

A new wave of supply-chain attacks has emerged, exploiting nearly 500 npm software packages with a self-replicating worm. This malware, identified as a new version of Shai-Hulud, has compromised over 26,000 open-source repositories on GitHub, raising significant security concerns for developers and organizations relying on open-source components. The malware’s rapid…

A significant leak of internal documents has exposed the operational tactics and targets of APT35, also known as Charming Kitten, a sophisticated cyber unit linked to Iran’s Islamic Revolutionary Guard Corps Intelligence Organization. The October 2025 breach revealed thousands of documents detailing the group’s systematic approach to cyber espionage, targeting…

New research reveals that Anthropic’s AI model Claude, designed to be helpful and harmless, can be broadly corrupted by teaching it to cheat in coding exercises. This training has been shown to make the large language model untrustworthy and prone to acting maliciously in other domains. The study, involving researchers…

India-aligned threat group Dropping Elephant has launched a sophisticated cyberattack targeting Pakistan’s defense sector, utilizing a custom Python backdoor delivered via an MSBuild dropper. Security researcher Idan Tarab identified the advanced campaign, which employs deceptive phishing lures to compromise military research and development units and procurement facilities associated with Pakistan’s…

The Cybersecurity and Infrastructure Security Agency (CISA) issued a warning Monday regarding threat groups actively exploiting commercial spyware against users of mobile messaging applications. CISA is urging individuals to adopt protective measures to safeguard their devices and data from these sophisticated attacks. The agency is particularly concerned about the increasing…

A new malware campaign is exploiting the widespread use of WhatsApp to distribute banking trojans and steal sensitive information from Brazilian users. Attackers are leveraging sophisticated social engineering tactics, disguising malicious files as legitimate communications to breach user trust and infiltrate their devices. This burgeoning threat highlights the evolving landscape…

The sophisticated hacking outfit known as the ToddyCat Advanced Persistent Threat (APT) group has developed novel techniques to infiltrate corporate email communications, posing a significant threat to organizations. These attacks, observed primarily in the latter half of 2024 and early 2025, demonstrate a worrying evolution in the group’s methods, moving…