CISA has released a cybersecurity advisory detailing lessons learned from a recent incident response. The advisory emphasizes the critical importance of timely patching of vulnerabilities. Comprehensive and regularly tested incident response plans are also highlighted as essential. Proactive threat monitoring is identified as a key component in mitigating risks. The advisory outlines specific tactics, techniques, and procedures (TTPs) used by cyber threat actors. One such TTP involved the exploitation of GeoServer Vulnerability CVE-2024-36401 for initial access. CISA recommends prioritizing the patching of critical vulnerabilities, especially on public-facing systems. Organizations should also ensure their incident response plans include provisions for third-party assistance and rapid tool deployment. Enhancing threat monitoring through centralized logging and continuous investigation of abnormal activity is crucial. Applying these lessons learned will help organizations strengthen their security posture and reduce the likelihood of future compromises.