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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.”
TA829 and UNK_GreenSec Share Tactics and Infrastructure in Ongoing Malware Campaigns
Cybersecurity researchers have flagged the tactical similarities between the threat actors behind the RomCom RAT and a cluster that has been observed delivering a loader dubbed TransferLoader. Enterprise security firm Proofpoint is tracking the activity associated...
New Flaw in IDEs Like Visual Studio Code Lets Malicious Extensions Bypass Verified Status
A new study of integrated development environments (IDEs) like Microsoft Visual Studio Code, Visual Studio, IntelliJ IDEA, and Cursor has revealed weaknesses in how they handle the extension verification process, ultimately enabling attackers to execute malicious code...
A New Maturity Model for Browser Security: Closing the Last-Mile Risk
Despite years of investment in Zero Trust, SSE, and endpoint protection, many enterprises are still leaving one critical layer exposed: the browser. It’s where 85% of modern work now happens. It’s also where copy/paste actions, unsanctioned GenAI usage, rogue...
Google Patches Critical Zero-Day Flaw in Chrome’s V8 Engine After Active Exploitation
Google has released security updates to address a vulnerability in its Chrome browser for which an exploit exists in the wild. The zero-day vulnerability, tracked as CVE-2025-6554 (CVSS score: N/A), has been described as a type confusing flaw in the V8 JavaScript and...
U.S. Arrests Key Facilitator in North Korean IT Worker Scheme, Seizes $7.74 Million
The U.S. Department of Justice (DoJ) on Monday announced sweeping actions targeting the North Korean information technology (IT) worker scheme, leading to the arrest of one individual and the seizure of 29 financial accounts, 21 fraudulent websites, and nearly 200...
Microsoft Removes Password Management from Authenticator App Starting August 2025
Microsoft has said that it's ending support for passwords in its Authenticator app starting August 1, 2025. The changes, the company said, are part of its efforts to streamline autofill in the two-factor authentication (2FA) app. "Starting July 2025, the autofill...
U.S. Agencies Warn of Rising Iranian Cyberattacks on Defense, OT Networks, and Critical Infrastructure
U.S. cybersecurity and intelligence agencies have issued a joint advisory warning of potential cyber-attacks from Iranian state-sponsored or affiliated threat actors. "Over the past several months, there has been increasing activity from hacktivists and Iranian...
Europol Dismantles $540 Million Cryptocurrency Fraud Network, Arrests Five Suspects
Europol on Monday announced the takedown of a cryptocurrency investment fraud ring that laundered €460 million ($540 million) from more than 5,000 victims across the world. The operation, the agency said, was carried out by the Spanish Guardia Civil, along with...
Blind Eagle Uses Proton66 Hosting for Phishing, RAT Deployment on Colombian Banks
The threat actor known as Blind Eagle has been attributed with high confidence to the use of the Russian bulletproof hosting service Proton66. Trustwave SpiderLabs, in a report published last week, said it was able to make this connection by pivoting from...
Leveraging Credentials As Unique Identifiers: A Pragmatic Approach To NHI Inventories
Identity-based attacks are on the rise. Attacks in which malicious actors assume the identity of an entity to easily gain access to resources and sensitive data have been increasing in number and frequency over the last few years. Some recent reports estimate that 83%...