Chola R Sekhar M

Security Operations Center Analyst @The Home Depot

TX, US

Participate in incident response and business continuity planning.Lead the discussions with Application Analysts, Development, and Infrastructure to implement security guidelines and standards.Investigated alerts across Defender XDR, Sentinel, and ProofPoint, analyzing endpoint, email, and network events.Applied knowledge of TCP/IP, DNS, and HTTP protocols to trace malicious traffic and C2 communication attempts.Used sandbox environments (Any.Run, VirusTotal, Hybrid Analysis) to analyze suspicious files and URLs.Managed incidents end-to-end in ServiceNow, ensuring timely resolution and RCA documentation.Supported SOC monitoring using SIEM queries (KQL in Sentinel) to identify phishing campaigns and lateral movement.Collaborated with engineering teams to apply network and endpoint containment measures.Authored technical incident reports, playbooks, and process documentation for audit complianceFunction as a central third-party risk management subject matter expert looking to involve third parties in processes that interact with data. Support completion of information security review process for all new third parties, and annual reviews for all other relationships, that receive and/or interact with data.Assist with the management and operation of information security tools and processes, including security information and event management (SIEM) and endpoint AV and malware defense (EDR).Attend regular technical project and implementation meetings and serve as a security consultant to help guide secure application and infrastructure configurations.