GTIG says 316 threat clusters used suspected NetNut exit nodes in one June week to hide locations and run password-guessing attacks.
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Cisco finally confirms attackers exploiting Unified CM flaw
Cisco confirmed that attackers are now exploiting a Unified Communications Manager (Unified CM) vulnerability patched in early June.
Unified CM (formerly known as Cisco CallManager) is the central control system for Cisco IP telephony systems, handling call routing, device management, and telephony features.
Threat actors without privileges can exploit the vulnerability (CVE-2026–20230) remotely in low-complexity server-side request forgery (SSRF) attacks by sending a crafted HTTP request.
Opera rolls out Paste Protect feature to fight ClickFix attacks
Opera has introduced Paste Protect, a security feature designed to block ClickFix-style attacks that trick users into executing malicious commands through social engineering.
ClickFix is a widely used technique where victims are deceived into copying dangerous code or commands to the clipboard and then executing them in the command-line interface.
Typically, the ruse is a verification process or some form of problem-fixing instructions. However, they are only designed to trick the target into performing dangerous actions.
Unlocking the ‘black box’ of carbon materials: Study reveals origins of defect peaks
Carbon materials, such as carbon fibers and activated carbons, are essential across a wide variety of fields, encompassing everything from aerospace engineering to fuel cells and thermal insulation. For decades, Raman, infrared and X-ray photoelectron spectroscopy (XPS) have been the primary tools used to analyze carbon materials. However, because of their diverse structural conditions and inconsistencies in their interpretation, researchers have found it challenging to assign specific spectral peaks to exact, localized chemical structures.
The detailed origin and nature of these peaks, and their exact effect on important material characteristics, have often remained unclear.
To tackle this issue, a research team led by Associate Professor Yasuhiro Yamada from the Graduate School of Engineering, Chiba University, Japan, used isotropic pitch-based carbon fiber—a cost-effective material widely used for high-temperature thermal insulation—as a general model to analyze carbon materials prepared at high temperatures of 1,473 K (1,200 °C) or higher.
