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“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.”
OpenAI Patches ChatGPT Data Exfiltration Flaw and Codex GitHub Token Vulnerability
A previously unknown vulnerability in OpenAI ChatGPT allowed sensitive conversation data to be exfiltrated without user knowledge or consent, according to new findings from Check Point. "A single malicious prompt could turn an otherwise ordinary conversation into a...
DeepLoad Malware Uses ClickFix and WMI Persistence to Steal Browser Credentials
A new campaign has leveraged the ClickFix social engineering tactic as a way to distribute a previously undocumented malware loader referred to as DeepLoad. "It likely uses AI-assisted obfuscation and process injection to evade static scanning, while credential theft...
⚡ Weekly Recap: Telecom Sleeper Cells, LLM Jailbreaks, Apple Forces U.K. Age Checks and More
Some weeks are loud. This one was quieter but not in a good way. Long-running operations are finally hitting courtrooms, old attack methods are showing up in new places, and research that stopped being theoretical right around the time defenders stopped paying...
3 SOC Process Fixes That Unlock Tier 1 Productivity
What is really slowing Tier 1 down: the threat itself or the process around it? In many SOCs, the biggest delays do not come from the threat alone. They come from fragmented workflows, manual triage steps, and limited visibility early in the investigation. Fixing...
The State of Secrets Sprawl 2026: 9 Takeaways for CISOs
Secrets sprawl isn't slowing down: in 2025, it accelerated faster than most security teams anticipated. GitGuardian's State of Secrets Sprawl 2026 report analyzed billions of commits across public GitHub and uncovered 29 million new hardcoded secrets in 2025 alone, a...
Russian CTRL Toolkit Delivered via Malicious LNK Files Hijacks RDP via FRP Tunnels
Cybersecurity researchers have discovered a remote access toolkit of Russian-origin that's distributed via malicious Windows shortcut (LNK) files that are disguised as private key folders. The CTRL toolkit, according to Censys, is custom-built using .NET and includes...
Three China-Linked Clusters Target Southeast Asian Government in 2025 Cyber Campaign
Three threat activity clusters aligned with China have targeted a government organization in Southeast Asia as part of what has been described as a "complex and well-resourced operation." The campaigns have led to the deployment of various malware families, including...
Iran-Linked Hackers Breach FBI Director’s Personal Email, Hit Stryker With Wiper Attack
Threat actors with ties to Iran successfully broke into the personal email account of Kash Patel, the director of the U.S. Federal Bureau of Investigation (FBI), and leaked a cache of photos and other documents to the internet. Handala Hack Team, which carried out the...
Citrix NetScaler Under Active Recon for CVE-2026-3055 (CVSS 9.3) Memory Overread Bug
A recently disclosed critical security flaw impacting Citrix NetScaler ADC and NetScaler Gateway is witnessing active reconnaissance activity, according to Defused Cyber and watchTowr. The vulnerability, CVE-2026-3055 (CVSS score: 9.3), refers to a case of...
TA446 Deploys Leaked DarkSword iOS Exploit Kit in Targeted Spear-Phishing Campaign
Proofpoint has disclosed details of a targeted email campaign in which threat actors with ties to Russia are leveraging the recently disclosed DarkSword exploit kit to target iOS devices. The activity has been attributed with high confidence to the Russian...