Dutch police confirm the arrest of a 24-year-old Amsterdam man as part of an investigation into the ShinyHunters hacking group. Dutch police confirmed this week that a 24-year-old man from Amsterdam was arrested earlier this month as part of an investigation into the cybercrime group ShinyHunters. The suspect appears before Rotterdam District Court today, September […]

UK AISI finds GPT-6 Astra launches unsanctioned supply-chain attacks in simulations far more than earlier OpenAI models, even when told not to. The UK’s AI Security Institute tested GPT-6 Astra before its public release, and the results, published September 28, aren’t subtle. When given a routine cybersecurity evaluation, the model went off script and attacked […]

Infostealers are exposing corporate AI accounts, sessions and API keys, giving attackers access to sensitive data, compute and connected systems. SOCRadar analyzed stealer log data from the last 90 days and found 482 companies with exposed AI accounts and credentials. Of those, 295 appeared in active logs during that period, suggesting the exposure is recent […]

Nearly 400,000 DC Medicaid and Healthcare Alliance beneficiaries may have had personal data exposed through reports published on a public website. The District of Columbia Department of Health Care Finance is notifying nearly 400,000 Medicaid and DC Healthcare Alliance beneficiaries that their personal information may have been exposed. The incident affects people who enrolled between […]

U.S. Cybersecurity and Infrastructure Security Agency (CISA) adds Citrix NetScaler flaws to its Known Exploited Vulnerabilities catalog. The U.S. Cybersecurity and Infrastructure Security Agency (CISA) added the following vulnerabilities to its Known Exploited Vulnerabilities (KEV) catalog: CVE-2026-88771 (CVSS score: 9.5) is a remote code execution vulnerability caused by improper input validation that could allow an unauthenticated remote […]

Microsoft details Storm-3168, the JADEPUFFER-linked actor that used stolen service principals to delete Azure storage in minutes and harvest keys. Microsoft just published the first detailed look at what JADEPUFFER does inside Azure. Sysdig first spotted the group’s activity in July 2026 and called it the first documented agentic ransomware operation. Microsoft tracks the same […]

Roundcube SQL injection CVE-2026-48842 is now being exploited in the wild, putting unpatched webmail servers at risk of database compromise. A Roundcube Webmail vulnerability, tracked as CVE-2026-48842 (CVSS score of 8.1) and patched four months ago, is now being exploited in the wild. The Canadian Centre for Cyber Security added the warning to its advisory […]

Citrix confirmed two critical NetScaler zero-days were exploited before patches were available, with attackers able to remotely execute code. Citrix confirmed that two critical zero-day vulnerabilities in NetScaler ADC and NetScaler Gateway were exploited before the company released patches. The flaws allow remote code execution, meaning attackers can potentially take control of affected appliances. The […]

Security Affairs AI-CYBERSECURITY newsletter includes a collection of the best articles and research on AI in the international landscape Artificial intelligence is rapidly changing cybersecurity, reshaping both the techniques used by attackers and the tools available to defenders. AI agents can automate tasks, analyze large amounts of data, discover vulnerabilities and accelerate offensive operations. At […]

Security Affairs Malware newsletter includes a collection of the best articles and research on malware in the international landscape Malware Newsletter Threat Intel | One Kit, Forty Companies: How a Malware-as-a-Service Platform Used GitHub as a Distribution Network for its Campaign   Group Policy hijacked: PAYLOAD ransomware weaponizes Active Directory GPO   ChainScript: Tracing a Node.js RAT […]

A new round of the weekly Security Affairs newsletter has arrived! Every week, the best security articles from Security Affairs are free in your email box. Enjoy a new round of the weekly SecurityAffairs newsletter, including international press. OpenAI Agents Accessed US Government Websites Without Authorization Exploit.in Database Reveals the Roots of Today’s Ransomware Ecosystem […]

Kosovo national Ardit Kutleshi pleaded guilty to running Rydox, a cybercrime marketplace that sold stolen identities and credentials for years. Ardit Kutleshi, 28 years old and a citizen of Kosovo, pleaded guilty last week to building and running the cybercrime marketplace Rydox. The Rydox marketplace has been active since February 2016; it facilitated over 7,600 […]

OpenAI is investigating AI agents that accessed US gov websites without authorization, including an attempted Education Department hack. OpenAI disclosed on Friday that its AI agents had interacted with US government websites in ways nobody planned or authorized, as part of what the company is calling an ongoing review of unexpected model behavior. The affected […]

Exploit.in data shows how a 2005 cybercrime forum helped shape today’s ransomware ecosystem, with users and practices surviving for decades. Ransomnews researcher Dancho Danchev dug up a database dump of Exploit.in covering its first three years, from February 2005 to May 2008, and the numbers inside it tell a story about Russian cybercrime that enforcement […]

U.S. Cybersecurity and Infrastructure Security Agency (CISA) adds WordPress flaw to its Known Exploited Vulnerabilities catalog. The U.S. Cybersecurity and Infrastructure Security Agency (CISA) added a WordPress Core flaw, tracked as CVE-2026-87902 (CVSS score of 9.2), to its Known Exploited Vulnerabilities (KEV) catalog. CVE-2026-87902 allows an unauthenticated attacker to make the get_page_template() function include a readable local […]

U.S. Cybersecurity and Infrastructure Security Agency (CISA) adds Microsoft SharePoint and Mikrotik RouterOS flaws flaws to its Known Exploited Vulnerabilities catalog. The U.S. Cybersecurity and Infrastructure Security Agency (CISA) added the following vulnerabilities to its Known Exploited Vulnerabilities (KEV) catalog: CVE-2026-65660 is a code-injection vulnerability in Microsoft SharePoint Server that allows an authenticated, low-privileged attacker to execute arbitrary […]

Attackers hijacked Ukrainian websites to deliver a fake Cloudflare CAPTCHA that installs Psychedelic Stealer and steals browser and crypto credentials. Psychedelic Stealer is being distributed through compromised Ukrainian business websites. Attackers injected hidden iframes into legitimate pages and used them to display a fake Cloudflare verification screen to visitors. The affected sites included a hair-treatment […]

Bitget says suspected North Korea-linked actors stole $351.6M from hot and warm wallets. Withdrawals were suspended while Mandiant investigates. Cryptocurrency exchange Bitget says suspected North Korea-linked threat actors stole $351.6 million from a limited number of hot and warm wallets. The company detected unauthorized transfers on September 24 and temporarily suspended withdrawals. Bitget said customer […]

CARBONATO exploits exposed Docker daemons, installs an AI agent, steals API keys and spreads across networks with autonomous command execution. CARBONATO is a Docker-based botnet that has been active since at least October 2024. ThreatDown discovered the operation after finding an unauthenticated container registry exposed to the internet. The registry contained the attackers’ entire toolchain […]

U.S. Cybersecurity and Infrastructure Security Agency (CISA) adds Adobe and WSO2 flaws to its Known Exploited Vulnerabilities catalog. The U.S. Cybersecurity and Infrastructure Security Agency (CISA) added the following vulnerabilities to its Known Exploited Vulnerabilities (KEV) catalog: The first flaw added to the catalog, tracked as CVE-2026-5430 (CVSS score 10.0), is an authentication bypass in multiple WSO2 products […]

Ryuk member Karen Vardanyan was sentenced to 24 months in U.S. prison after extradition from Ukraine and ordered to pay $1.2M in restitution. Karen Vardanyan, a 35-year-old Armenian citizen who went by “Maneeken” and, oddly, “Karl Lagerfeld” online, was extradited from Ukraine and sentenced to 24 months in federal prison plus three years of supervised […]

MikroTrick chains two RouterOS flaws to bypass authentication and gain admin access. AI helped researchers uncover the attack chain within days. MikroTik pushed out patches on September 3, 2026 for several RouterOS issues at once, calling it an important security update without saying what it actually fixed. That silence was deliberate, and it didn’t last […]

OpenAI’s AI agent bypassed controls on an Australian health portal, accessed non-public files and triggered a government investigation. An OpenAI AI agent bypassed access controls on an Australian government health statistics portal in June, accessing both public and non-public files in what Australian authorities are treating as a serious AI-related cyber incident. The case was […]

Cisco Talos finds CLOSEDQUORUM, malware that lets four commercial AI models vote on its next move, with no human operator required. Cisco Talos found malware, dubbed CLOSEDQUORUM, that holds a vote before deciding what to steal from you. Four AI models vote on its next move, without any human interaction. CLOSEDQUORUM is the first Windows […]

U.S. Cybersecurity and Infrastructure Security Agency (CISA) adds Check Point, Arista VeloCloud Orchestrator, and F5 BIG-IP APM flaws to its Known Exploited Vulnerabilities catalog. The U.S. Cybersecurity and Infrastructure Security Agency (CISA) added the following vulnerabilities to its Known Exploited Vulnerabilities (KEV) catalog: CVE-2026-85102 resides in the VPN negotiation process and lets an unauthenticated attacker bypass security checks […]