Atrryee Mazumder
Security Consultant
Bengalore
Summary
Security Analyst with 4 years of experience in data security, SOC operations, and data governance, specializing in threat monitoring, incident response, DLP policy management, and compliance-driven data protection. Proven ability to enhance security posture through SIEM analysis, data classification, governance frameworks, and process automation while ensuring alignment with ISO 27001, NIST, and GDPR standards.
Overview
4
4
years of professional experience
4
4
Certification
Work History
Associate
London Stock Exchange and Group
Bengaluru
08.2024 - Current
- Implemented and managed enterprise DLP policies across endpoints, networks, and cloud systems, ensuring the protection of sensitive information using MS-Purview.
- Led DLP incident investigations, reducing unauthorized data transfers by 35%.
- Performed data classification and tagging to support regulatory compliance and data governance controls.
- Tuned DLP rules to lower false-positive alerts by 25% while maintaining compliance controls.
- Developed and enforced data governance policies aligned with ISO 27001, NIST, GDPR, HIPPA, PCI-DSS and organizational compliance requirements.
- Collaborated with stakeholders to implement data lifecycle management, improving data quality, and reducing redundant data by 40%.
- Conducted training sessions for staff on data protection best practices, resulting in a measurable increase in employee awareness and compliance with security protocols.
- Executed incident investigations involving sensitive data exposure and ensured timely escalation and closure as per SLA.
- Collaborated with cross-functional teams (Compliance, IT Security, and SOC) to validate alerts and enforce data protection guidelines.
- Addressed common user-related data handling issues and delivered feedback to compliance teams.
Associate - DLP & SOC Analyst
Price Waterhouse Coopers (PwC)
Kolkata
02.2022 - 08.2024
- Acted as primary cybersecurity liaison for 5+ enterprise clients, driving end-to-end threat management and incident governance.
- Deployed and optimized Forcepoint and Netskope DLP across network, cloud, and endpoint, strengthening data protection posture and reducing data leakage risks by ~25%.
- Designed SIEM use cases in ArcSight and Securonix, improving threat detection and correlation efficiency by ~30%.
- Onboarded and normalized multiple log sources into SIEM, enhancing visibility for security analytics and threat hunting.
- Investigated security incidents, performed root cause analysis, and implemented mitigations, reducing recurring incidents by ~20%.
- Produced audit-ready compliance reports, ensuring adherence to GDPR, ISO 27001, and client security standards.
- Operated in a 24×7 global SOC, improving incident response time and contributing to high availability security monitoring.
Education
B.Tech - CSE
01.2022
GPA: 8.97
Skills
- Data Loss Prevention (DLP)
- Insider Risk Management (IRM)
- UEBA
- Data Classification
- Labeling
- Information Protection
- Endpoint DLP
- Cloud DLP
- Network DLP
- SIEM
- ArcSight
- Securonix
- Incident Response
- Threat Detection
- Data Exfiltration Monitoring
- Investigation
- Security Policy Tuning
- Detection Engineering
- Compliance
- GDPR
- ISO 27001
- PCI-DSS
- EDiscovery
- Data Governance
- Security operations
- Incident Management
- Threat handling
- Insider threat handling
Certification
- Microsoft Certified: Information Security Administrator Associate, 2026
- Microsoft Certified: Security, Compliance & Identity Fundamentals, 2025
- ISO 27001:2022 Lead Implementer, 2023
- CompTIA Security+ (SY0-601), 2023
Languages
English
Hindi
Bengali
Awards
- PwC Spot Awards(2022, 2023)- Recognized for exceptional individual effort and high-quality delivery.
Timeline
Associate - London Stock Exchange and Group
08.2024 - Current
Associate - DLP & SOC Analyst - Price Waterhouse Coopers (PwC)
02.2022 - 08.2024
B.P Poddar Institute of Management and Technology - B.Tech, CSE