For the latest discoveries in cyber research for the week of 12th October, please download our Threat Intelligence Bulletin.
TOP ATTACKS AND BREACHES
- Denmark’s government has disclosed a breach involving its Central Register of Persons after unauthorized individuals exploited access provided to a private supplier. The incident reportedly exposed personal information, including names, addresses, and identification numbers, associated with approximately 8.8 million individuals in the national registry.
- UK-based online fashion retailer ASOS has confirmed a cyberattack involving stolen employee credentials that enabled unauthorized access to third-party platforms. Attackers reportedly obtained customer names and contact details and sent unauthorized push notifications to mobile application users. The threat group Xuanye claimed responsibility for the incident.
- ATB, Ukraine’s largest grocery retailer, has faced a cyberattack that disrupted its online services after attackers posted an extortion demand on its website. The DataSuckers group claimed to have stolen records belonging to 7.9 million customers, which include names, addresses, passport information and order records.
- Osaka Metropolitan University, one of Japan’s largest universities, has sustained a suspected ransomware attack that disrupted classes, internal networks, email, and administrative systems. Approximately 500 servers were affected, while personal information belonging to at least 130,000 individuals may have been exposed.
AI THREATS
- Researchers documented an AI-assisted intrusion campaign involving the ARTEX toolkit against South Korean financial institutions. Exposed directories revealed Claude Code session histories, configuration files, and Chinese-language prompts associated with the operation. The attackers allegedly used AI-assisted workflows to facilitate data theft and planned to sell stolen information.
- Researchers identified a phishing campaign targeting both employees and AI-powered email assistants. Malicious emails combine conventional phishing lures with hidden prompt injections embedded in HTML comments and invisible text. These instructions attempt to promote fraudulent requests, or induce unauthorized disclosure of information.
- Researchers profiled CyberXero, an AI-augmented initial access broker targeting Ukrainian energy infrastructure and conducting automated attacks against WordPress and e-commerce platforms. The operation combines automated exploitation with AI agents and has obtained information belonging to more than 628,000 Ukrainian individuals through its campaigns.
VULNERABILITIES AND PATCHES
- Veeam has released security updates addressing multiple vulnerabilities in Backup & Replication version 12. These include CVE-2025-64393, a critical remote code execution flaw rated CVSS 9.4 that allows low-privileged backup users to execute commands on affected servers. Versions before build 12.3.2.4934 are vulnerable.
- Citrix NetScaler ADC and Gateway appliances are affected by CVE-2026-88779, a high-severity memory overflow vulnerability rated CVSS 8.7. The flaw affects customer-managed appliances configured for SAML authentication and could cause denial of service. Citrix confirmed targeted exploitation, and security updates are available for affected versions.
- Cisco has released security updates addressing multiple critical vulnerabilities in NX-OS software. The flaws include CVE-2026-76455, an improper access control vulnerability rated CVSS 9.8. Successful exploitation could allow unauthorized access of affected network infrastructure.
- Atlassian released patches for CVE-2026-21589, a critical arbitrary file access vulnerability rated CVSS 9.3. The flaw affects eight self-managed Data Center products, including Jira, Confluence, Bitbucket, and Bamboo. Unauthenticated attackers could access sensitive files and potentially obtain credentials enabling administrative access to connected applications.
Check Point IPS provides protection against this threat (Atlassian Multiple Products Arbitrary File Read (CVE-2026-21589))
THREAT INTELLIGENCE REPORTS
- Check Point Research has reported a 48% year-over-year increase in global cyberattacks during September 2026, averaging 2,803 weekly attacks per organization. Education remained the most targeted sector, while reported ransomware attacks increased by 53%. Additionally, one in every 39 enterprise GenAI prompts posed a high risk of sensitive data exposure.
- Researchers have analyzed a cyberespionage campaign by Russia-aligned UAC-0099 targeting Ukrainian organizations, including transportation, manufacturing, and energy companies. The group uses the MATCHBOIL downloader to deploy additional malware, including the MATCHWOK backdoor.
- The FBI and Secret Service warn of continued exploitation in the FortiBleed credential-theft campaign, affecting more than 86,000 Fortinet FortiGate firewalls and VPN gateways across 194 countries. Attackers exploited previously compromised credentials to establish persistent access and reportedly sold access to ransomware affiliates, including INC, Lynx, and Payload.
- Researchers have identified a cyberespionage campaign targeting Taiwanese research organizations through phishing emails impersonating academic and policy institutions. The attackers used potentially AI-assisted event invitations, malicious QR codes, and fake Google login pages. Their phishing infrastructure could intercept credentials and MFA challenges in real time.
Source: Check Point Research · 2026-10-12
