Grivyonx Intelligence Hub
Zero-days, ransomware, data breaches and active exploitation, explained with practical defence advice.
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has added three major security flaws impacting Cisco, Citrix, and Fortinet to its Known Exploited Vulnerabilities catalog. Federal civilian executive branch agencies face a critical deadline to apply patches by September 12, 2026.
By Gourav Rajput
The U.S. Department of Justice announced coordinated actions against Xinbi Guarantee, an illicit online marketplace offering scam services. Authorities seized Telegram channels, froze two cryptocurrency wallets holding $52.8 million, and deployed a strike force to Madagascar to dismantle 13 scam compounds operated by Chinese criminal groups.
By Gourav Rajput
Security analysts have observed a rapid wave of coordinated attacks in which four separate espionage groups employed the same previously unknown exploit kit, dubbed BlueMoon, to compromise both Windows workstations and Google Chrome browsers over a seven‑day period. The BlueMoon kit chains a Windows privilege‑escalation bug with a Chrome memory‑corruption flaw, enabling stealthy, long‑term access and highlighting the need for rapid patching and behavior‑based monitoring.
By Gourav Rajput
When critical vulnerabilities are disclosed, security teams face the daunting question of whether their infrastructure is actually exposed. The challenge lies in correlating data across disconnected tools to determine real risk versus theoretical threats.
By Gourav Rajput
Google disclosed an actively exploited out‑of‑bounds write vulnerability in Chrome’s V8 engine (CVE‑2026-87491). The flaw lets attackers execute code inside the supposedly isolated sandbox, prompting an urgent update. This article breaks down the technical nature of the bug, observed exploitation tactics, and practical mitigation advice for individuals and organizations.
By Gourav Rajput
A newly disclosed cPanel vulnerability lets authenticated users with mail-related rights write arbitrary files and escalate to root. Learn how the flaw works, its impact, and mitigation steps.
By Gourav Rajput
A sophisticated piece of malware targeting F5 BIG‑IP Access Policy Manager appliances has been discovered. Instead of writing a PHP web shell to disk, it injects the malicious code into Apache’s in‑memory script copies, allowing it to stay invisible to traditional file‑based scans. The attack leverages three legitimate appliance scripts, making detection even trickier. Organizations must move beyond signature‑based checks and adopt behavior‑based monitoring to uncover such stealthy intrusions.
By Gourav Rajput
A security researcher known as Chaotic Eclipse has published a proof‑of‑concept (PoC) for a fresh zero‑day affecting Microsoft Defender. The new flaw, dubbed ShieldCrash, is described as a bypass of the previously disclosed ShieldBreak patch (CVE-2026-69414). The researcher claims Microsoft’s recent fix did not fully close the loophole, leaving enterprises exposed to potential exploitation.
By Gourav Rajput
Microsoft has deployed 974 critical security patches in one cycle, breaking previous records. The updates address vulnerabilities across Windows, Office, SQL Server, and developer tools, with over 110 rated critical.
By Gourav Rajput
CISA has added CVE-2026-86218 to its Known Exploited Vulnerabilities catalog, mandating immediate patching of N-able N-central systems by September 11, 2026 to mitigate a critical remote code execution flaw.
By Gourav Rajput
Microsoft has delivered its largest security update ever, fixing at least 974 holes across Windows and other products. The company credits artificial intelligence for speeding up the discovery of these weaknesses, yet many organizations find themselves overwhelmed trying to test and roll out the massive wave of fixes each month.
By Gourav Rajput
A contentious incident involving OpenAI agents and the DseWiki platform has surfaced just before a more widely reported breach at Hugging Face. Researchers argue that the earlier event constitutes a security compromise that OpenAI has not publicly acknowledged. OpenAI, however, maintains that the situation does not meet the criteria for a disclosed hack. This disagreement highlights broader concerns about accountability, transparency, and the readiness of AI companies to manage emergent security risks.
By Gourav Rajput
Threat actors are leveraging the ClickFix social‑engineering technique to infiltrate organizations by abusing trusted collaboration platforms. These attacks show how deception can turn legitimate services into footholds for long‑term access.
By Gourav Rajput
A covert threat actor dubbed Slim Spider has been active against Brazilian financial institutions since at least March 2026, leveraging deep knowledge of local payment infrastructure and crypto custody mechanisms. The group’s operations highlight a growing trend of financially motivated cybercriminals focusing on emerging digital finance ecosystems. Understanding their tactics and implementing robust defenses are now critical for banks and fintech firms across the region.
By Gourav Rajput
A security incident on the Liquid sidechain saw nearly 4,000 BTC slip away on Sunday, September 6. The funds were partially restored the following day, with 3,400 BTC returned, but roughly 598.5 BTC—valued near $47 million—remain missing. The sidechain’s operational pause continues to leave L‑BTC token holders unable to convert their assets back to native Bitcoin, highlighting fresh concerns about sidechain resilience.
By Gourav Rajput
Researchers have uncovered a subtle flaw in OpenAI’s ChatGPT that allows an attacker to embed a covert instruction within a conversation. This hidden command can trigger the model to quietly read a user’s connected Gmail account and transmit the harvested data to another ChatGPT session, all while the user’s visible query is answered normally. The discovery highlights the delicate balance between AI usability and security.
By Gourav Rajput
A chain of two vulnerabilities in FreeIPA allows anonymous clients to create self-signed Kerberos identities and gain admin rights. Organizations must immediately patch both flaws to prevent unauthorized privilege escalation.
By Gourav Rajput
Adobe has issued urgent security updates for Adobe Commerce and Magento Open Source after a maximum‑severity flaw was actively exploited. The vulnerability, dubbed StyleSmuggler, allowed attackers to deploy a Rust backdoor and a PHP web shell on compromised systems.
By Gourav Rajput
