Police dismantle KillSec ransomware gang allegedly led by 16-year-old

An international law enforcement operation dubbed “Operation KillSwitch” seized the KillSec ransomware gang’s data leak site and servers, led to three arrests, and identified a 16-year-old as the group’s alleged administrator. The coordinated law enforcement action was carried out on September 30, involving authorities from Belgium, the United States, Finland, Germany, Greece, the Netherlands, Romania, […]

The Day-One Hole in Zero Trust Architecture

Zero Trust principles are now commonplace in enterprise infrastructure; organizations have spent years investing in measures that secure identities and systems against sophisticated attacks. However, human error is still a readily exploitable path into even hardened organizations, particularly where trust is established manually. Onboarding and service desk processes are a natural pressure point where agents […]

Kiteworks patches max severity code injection vulnerability

Secure file-sharing software company Kiteworks has released security updates to address 126 vulnerabilities, including a max-severity flaw affecting its Email Protection Gateway (EPG) security solution. EPG is a component of the Kiteworks Private Content Network (PCN), which integrates enterprise email, Managed File Transfer (MFT), file sharing, APIs, and web forms into a single platform. Formerly […]

Hackers stole Pentagon personnel records of over 3 million people

The Pentagon’s Defense Manpower Data Center (DMDC) is notifying millions of military service members that hackers stole their data after breaching the Pentagon’s human resources management system in October 2025. In data breach notification letters shared online by affected individuals, the DMDC told affected military personnel that “a small number of unauthorized users” had access […]

CISA warns of critical pre-auth RCE flaw in MikroTik RouterOS

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) is warning of a new critical vulnerability in MikroTik RouterOS that could lead to remote code execution or cause a denial-of-service condition. Tracked as CVE-2026-84411, the security issue is a pre-authentication integer underflow in RouterOS’s web-management HTTP request handling. CISA says that a single crafted request can […]

Microsoft to block Entra ID script injection attacks starting October

Microsoft has reminded customers that the Entra ID identity and access management (IAM) solution will get better protection against external script injection attacks starting next month. The company first revealed plans to secure Entra ID sign-ins from script injection attacks in a November 2025 announcement. According to a Monday message center update seen by BleepingComputer, […]

Hackers exploit Citrix NetScaler zero-day to deploy web shells

Cybersecurity firms say attackers exploited the Citrix NetScaler CVE-2026-88772 zero-day to deploy custom web shells and tunneling malware, gain root access, steal credentials, and spread into internal networks. Mandiant says the attacks began in at least early September and are believed to have impacted organizations in North America and Europe across the government, financial services, […]