API cybersecurity will be a ping pong ball, battered between the rackets of AI-assisted attackers and AI-assisted defenders. The post Cyber Insights 2026: API Security – Harder to Secure, Impossible to Ignore appeared first on SecurityWeek .
LockBit, originating as ABCD ransomware in 2019, has evolved to version 5.0 in September 2025. After a period of inactivity, it resumed operations in December 2025 with a reduced affiliate sign-up fee. LockBit 5.0, nicknamed ChoungDong, consists of a Loader and Ransomware component. The Loader decrypts and executes the payload in memory, while the Ransomware uses ChaCha20 and Curve25519 for encryption. This update significantly enhances evasion techniques and attack efficiency, introducing features like Mutex, Execution Delay, and Wiper. The group's history includes affiliation with the Maze cartel, independent operations, and continuous upgrades. Mitigation strategies involve monitoring process behavior, applying security patches, and preparing for swift responses using provided IoCs and MITRE ATT&CK techniques.
Visual Studio Code is a popular open-source code editor[1]. But it's much more than a simple editor, it's a complete development platform that supports many languages and it is available on multiple platforms. Used by developers worldwide, it's a juicy target for threat actors because it can be extended with extensions.
A 2025 study analyzing 6 billion stolen passwords reveals that user password behavior remains stagnant, with common weak passwords like '123456', 'admin', and 'password' dominating. This widespread use of easily guessable passwords continues to expose organizations to credential-based attacks. Although no specific software vulnerability is identified, the persistence of weak passwords significantly increases risks of unauthorized access and data breaches. European organizations remain vulnerable due to reliance on password authentication and insufficient enforcement of strong password policies. Mitigation requires enforcing multi-factor authentication, implementing password blacklists, and user education to reduce weak password usage. Countries with large digital economies and high internet penetration, such as Germany, the UK, France, and the Netherlands, are particularly at risk. Given the ease of exploitation and potential for broad impact, the threat severity is assessed as high. Defenders must prioritize strengthening authentication controls and monitoring for credential abuse to mitigate this ongoing risk.
KRVTZ IDS alerts from January 21, 2026, report network reconnaissance targeting Fortigate VPN devices, specifically repeated GET requests to the /remote/logincheck endpoint associated with CVE-2023-27997. This vulnerability allows unauthenticated attackers to bypass authentication and execute arbitrary commands. Additional suspicious scanning includes anomalous HTTP user-agent strings and attempts to access sftp-config.json files to discover exposed credentials. No active exploitation or public patches are currently reported. European organizations, especially in critical infrastructure, finance, and government sectors, are at increased risk. The threat level is medium due to the potential impact if exploited combined with ease of reconnaissance. Defenders should prioritize patching when available, restrict access, and secure credentials to mitigate risk.
CVE-2026-21926 is a high-severity vulnerability in Oracle Siebel CRM Deployment versions 17.0 through 25.2. It allows an unauthenticated attacker with network access via TLS to cause a denial of service (DoS) by triggering a hang or repeated crash of the Siebel CRM server infrastructure. The vulnerability does not impact confidentiality or integrity but severely affects availability. Exploitation requires no privileges or user interaction and can be performed remotely, making it easily exploitable. There are no known exploits in the wild yet, but the potential for disruption in business-critical CRM environments is significant. European organizations relying on Siebel CRM for customer management and operations could face service outages and operational disruptions. Mitigation should focus on applying vendor patches promptly once available, restricting network access to Siebel CRM servers, and monitoring for unusual traffic patterns. Countries with high adoption of Oracle Siebel CRM, such as the UK, Germany, France, and the Netherlands, are most at risk.
Under the new rules, measures for 5G cybersecurity would become mandatory. The post EU Plans Phase Out of High Risk Telecom Suppliers, in Proposals Seen as Targeting China appeared first on SecurityWeek .
A sophisticated multi-stage malware campaign targeting Windows users in Russia has been identified. The attack chain begins with social engineering lures and progresses to a full system compromise, including security bypass, surveillance, and ransomware delivery. It abuses Defendnot to disable Microsoft Defender and uses modular hosting across cloud services. The attack employs various techniques such as PowerShell scripts, obfuscated VBScript, and COM object manipulation. It deploys Amnesia RAT for data theft and surveillance, Hakuna Matata ransomware for file encryption, and a WinLocker component for system lockout. The campaign demonstrates how full system compromise can be achieved without exploiting software vulnerabilities, instead relying on social engineering and abuse of legitimate Windows features.
Providing cyberespionage and remote code execution capabilities, the malware is executed via DLL sideloading. The post APT-Grade PDFSider Malware Used by Ransomware Groups appeared first on SecurityWeek .
A simple payload allowed attackers to create a new event leaking summaries of the victim’s private meetings. The post Weaponized Invite Enabled Calendar Data Theft via Google Gemini appeared first on SecurityWeek .
IDNs or “International Domain Names” have been with us for a while now (see RFC3490[1]). They are (ab)used in many attack scenarios because.. it works! Who can immediately spot the difference between:
VoidLink is an advanced AI-generated malware framework exhibiting high maturity, modularity, and sophisticated techniques such as eBPF and LKM rootkits. It targets cloud and container environments with dedicated modules for enumeration and post-exploitation, indicating a focus on modern infrastructure. Although no known exploits in the wild have been reported yet, its architecture suggests a significant threat potential. European organizations relying on cloud-native and containerized deployments are at heightened risk due to the malware's capabilities. Mitigation requires advanced detection mechanisms tailored to eBPF and kernel-level rootkits, alongside strict cloud environment monitoring and segmentation. Countries with strong cloud adoption and critical infrastructure sectors, such as Germany, the UK, France, and the Netherlands, are likely to be most affected. Given its high impact on confidentiality, integrity, and availability, combined with ease of exploitation via AI-generated code, the suggested severity is high. Defenders should prioritize proactive threat hunting and behavioral analytics to detect this evolving threat.
The Evelyn Stealer campaign targets software developers through weaponized Visual Studio Code extensions, employing a multistage delivery of information-stealing malware. The attack chain involves a downloader disguised as a legitimate Lightshot DLL, an injector that uses process hollowing to inject the final payload, and the Evelyn Stealer itself. The malware implements sophisticated anti-analysis techniques, collects sensitive information including browser credentials and cryptocurrency data, and exfiltrates the stolen data via FTP. This campaign highlights the increasing threat to developer communities and the need for enhanced security measures in development environments.
CVE-2026-23846 is a high-severity vulnerability in Quenary's tugtainer versions prior to 1.16.1, where password authentication uses HTTP GET requests with sensitive query strings. This insecure design causes passwords to be exposed in server logs, browser history, Referer headers, and proxy logs, risking credential leakage. The vulnerability does not require authentication but does require user interaction, and it affects the confidentiality and integrity of credentials without impacting availability. The issue is patched in version 1.16.1. European organizations using tugtainer for Docker container automation should urgently update to mitigate exposure risks. Countries with significant container adoption and cloud infrastructure usage, such as Germany, France, and the Netherlands, are most likely to be affected.
Operating as an access broker, the defendant sold unauthorized access to compromised networks to an undercover agent. The post Jordanian Admits in US Court to Selling Access to 50 Enterprise Networks appeared first on SecurityWeek .
