Our Blog
“Welcome to the CISTCK Group Cybersecurity Blog! Dive into the dynamic world of cybersecurity with our expert insights, thought-provoking articles, and the latest developments in the field. Our blog is your go-to resource for staying ahead in the ever-evolving landscape of cyber threats. Explore topics ranging from threat intelligence and risk management to industry best practices and emerging technologies. Whether you’re a cybersecurity professional, IT enthusiast, or simply interested in safeguarding digital landscapes, join us on a journey of knowledge-sharing and discover actionable strategies to fortify your defenses. Stay informed, stay secure with the CISTCK Group Cybersecurity Blog.”
Chinese Threat Group ‘Jewelbug’ Quietly Infiltrated Russian IT Network for Months
A threat actor with ties to China has been attributed to a five-month-long intrusion targeting a Russian IT service provider, marking the hacking group's expansion to the country beyond Southeast Asia and South America. The activity, which took place from January to...
F5 Breach Exposes BIG-IP Source Code — Nation-State Hackers Behind Massive Intrusion
U.S. cybersecurity company F5 on Wednesday disclosed that unidentified threat actors broke into its systems and stole files containing some of BIG-IP's source code and information related to undisclosed vulnerabilities in the product. It attributed the activity to a...
Over 100 VS Code Extensions Exposed Developers to Hidden Supply Chain Risks
New research has uncovered that publishers of over 100 Visual Studio Code (VS Code) extensions leaked access tokens that could be exploited by bad actors to update the extensions, posing a critical software supply chain risk. "A leaked VSCode Marketplace or Open VSX...
How Attackers Bypass Synced Passkeys
TLDR Even if you take nothing else away from this piece, if your organization is evaluating passkey deployments, it is insecure to deploy synced passkeys. Synced passkeys inherit the risk of the cloud accounts and recovery processes that protect them, which creates...
Two New Windows Zero-Days Exploited in the Wild — One Affects Every Version Ever Shipped
Microsoft on Tuesday released fixes for a whopping 183 security flaws spanning its products, including three vulnerabilities that have come under active exploitation in the wild, as the tech giant officially ended support for its Windows 10 operating system unless the...
Two CVSS 10.0 Bugs in Red Lion RTUs Could Hand Hackers Full Industrial Control
Cybersecurity researchers have disclosed two critical security flaws impacting Red Lion Sixnet remote terminal unit (RTU) products that, if successfully exploited, could result in code execution with the highest privileges. The shortcomings, tracked as CVE-2023-40151...
Hackers Target ICTBroadcast Servers via Cookie Exploit to Gain Remote Shell Access
Cybersecurity researchers have disclosed that a critical security flaw impacting ICTBroadcast, an autodialer software from ICT Innovations, has come under active exploitation in the wild. The vulnerability, assigned the CVE identifier CVE-2025-2611 (CVSS score: 9.3),...
New SAP NetWeaver Bug Lets Attackers Take Over Servers Without Login
SAP has rolled out security fixes for 13 new security issues, including additional hardening for a maximum-severity bug in SAP NetWeaver AS Java that could result in arbitrary command execution. The vulnerability, tracked as CVE-2025-42944, carries a CVSS score of...
Chinese Hackers Exploit ArcGIS Server as Backdoor for Over a Year
Threat actors with ties to China have been attributed to a novel campaign that compromised an ArcGIS system and turned it into a backdoor for more than a year. The activity, per ReliaQuest, is the handiwork of a Chinese state-sponsored hacking group called Flax...
Moving Beyond Awareness: How Threat Hunting Builds Readiness
Every October brings a familiar rhythm - pumpkin-spice everything in stores and cafés, alongside a wave of reminders, webinars, and checklists in my inbox. Halloween may be just around the corner, yet for those of us in cybersecurity, Security Awareness Month is the...