Jan 2, 2026 - This weekly report reviews the latest cyber security incidents, emerging attack methods, critical vulnerabilities and exploits, top corporate risks, and actionable recommendations to bolster defenses.

Current cyber security incidents


Over the past week, the threat landscape has been dominated by increased ransomware activity targeting both public institutions and private enterprises. Notably, a leading European healthcare provider disclosed a breach by the LockBit 3.0 gang, resulting in data encryption and exfiltration of patient records. Meanwhile, the Cl0p group continued exploiting the Progress MOVEit vulnerability (CVE-2023-34362), compromising multiple supply-chain downstream organizations and leaking sensitive financial documents.

In parallel, a major US financial services firm reported a credential stuffing campaign that leveraged leaked passwords from previous breaches, resulting in unauthorized customer account access. A high-profile hacktivist collective also claimed distributed denial-of-service (DDoS) attacks against critical infrastructure targets in retaliation for geopolitical events. These incidents have underscored the persistent risks of both opportunistic and state-aligned actors.

Current attack methods and trends


Cyber criminals are increasingly combining automated exploitation frameworks with human-driven post-exploitation tactics. Initial access is frequently gained through compromised credentials or through zero-day exploits in externally facing applications. Once inside, threat actors utilize living-off-the-land (LotL) tools such as Cobalt Strike and PowerShell scripts to evade legacy endpoint defenses and maintain persistence for extended dwell times.

Phishing campaigns have also evolved, often incorporating deepfake audio and AI-generated content to increase social engineering success rates. Attackers are leveraging generative AI to craft highly personalized messages, making it more difficult for employees to distinguish legitimate requests from malicious ones. This trend has accelerated the shift toward multi-factor authentication (MFA) fatigue attacks, where adversaries bombard users with push notifications until they inadvertently approve unauthorized logins.

Important CVEs and exploits (selection)


Among the newly disclosed vulnerabilities, CVE-2024-20787 in Zimbra Collaboration Suite stands out. This authentication bypass flaw allows unauthenticated attackers to execute arbitrary commands on mail servers. Exploits have already emerged in underground forums, and active scanning has been observed across multiple /public indexes. Organizations using Zimbra should prioritize patching and apply available hotfixes immediately.

Another critical vulnerability is CVE-2024-21893, an OGNL injection issue in Apache Struts 2, which can lead to remote code execution. Proof-of-concept exploits have been publicly released, raising the urgency for patch deployment. Additionally, CVE-2024-1781 in VMware Workspace ONE Access and Identity Manager allows privilege escalation via insufficient session handling. While no major incidents have been reported yet, targeted reconnaissance suggests that advanced persistent threat (APT) groups are staging potential campaigns.

Greatest risks for companies


The convergence of automated attack frameworks and sophisticated social engineering poses a significant threat to organizations lacking robust identity controls. Firms with legacy single-factor authentication are particularly vulnerable to credential stuffing and brute-force intrusion attempts. Once inside, attackers can move laterally and establish multi-point persistence, making detection and remediation far more complex.

Supply-chain compromises remain a critical risk, illustrated by the MOVEit breach and recurring flaws in widely deployed software stacks like Zimbra and Apache Struts. Companies reliant on third-party services must assume compromise by default and implement strict segmentation and monitoring between supplier-facing resources and internal networks. Failure to do so can result in rapid, cascading impacts across multiple business units.

Recommendations


Security teams should enforce multi-factor authentication across all remote access points and retire deprecated protocols such as legacy VPNs and Telnet. Continuous threat hunting using centralized telemetry can detect anomalous LotL behaviors before an attacker escalates privileges. Implementing endpoint detection and response (EDR) solutions with behavioral analytics will help surface stealthy processes and command-and-control communications.

Regularly patching known critical vulnerabilities is non-negotiable; organizations must adopt automated update pipelines or risk management processes that guarantee timely remediation. In conjunction, conducting frequent tabletop exercises and red team assessments will validate incident response playbooks. Collaboration with industry information-sharing groups enhances situational awareness and equips companies with actionable intelligence to counter emerging threats.