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yerra mounika09

@yerramounika09

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Senior Information Security Analyst at TD Bank investigating sign-in threats and tuning Microsoft Sentinel alerts.

Canada

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At TD Bank, I investigate suspicious sign-ins, account compromise attempts, and unusual user behavior. I use Microsoft Sentinel, KQL, and MITRE ATT&CK for threat hunting, and create and fine-tune SIEM analytics rules.

Across security roles at Wipro, Tata Consultancy Services (TCS), Concentrix, and Infosys, I’ve investigated endpoint, phishing, email, and DLP incidents. I’ve also supported vulnerability assessments, access controls, and security operations using tools including CrowdStrike Falcon, QRadar, Proofpoint, and Cofense Triage.

Experience

Work history, roles, and key accomplishments

Current

Senior Information Security Analyst

Current

TD Bank

Dec 2023 - Present (2 years 10 months)

Investigates security incidents including suspicious sign-ins, account compromise, and abnormal user behavior. Performs threat hunting using Microsoft Sentinel and KQL, and coordinates with IAM and infrastructure teams during investigations.

Microsoft Sentinel KQL MITRE ATT&CK Microsoft Defender For Endpoint Office365 Cloud App Security XSOAR Incident Response Threat Hunting SIEM IAM

Information Security Analyst

Wipro

Feb 2023 - Jun 2023 (4 months)

Investigated endpoint detections related to ransomware and suspicious executables, and used CrowdStrike RTR for isolation and forensic collection. Conducted vulnerability assessments and supported MFA rollout activities.

Crowdstrike RTR Endpoint Detection Vulnerability Assessment Nessus Burp suite Metasploit MFA Incident Response Firewalls VPN IDS IPS

Senior Security Analyst

Tata Consultancy Services

Jun 2022 - Feb 2023 (8 months)

Investigated phishing and business email compromise incidents using Proofpoint and Cofense Triage. Configured email filtering policies and supported MFA and SSO access controls.

ProofPoint Cofense Triage Phishing Analysis Email Security DLP MFA SSO Incident Response Threat Intelligence

Cyber Security Analyst

Concentrix

Jun 2021 - Jun 2022 (1 year)

Monitored QRadar offenses and investigated suspicious login activity and unauthorized access attempts. Supported phishing response and managed Active Directory tasks.

QRadar SIEM IOC DLP Active Directory Incident Response Phishing Analysis Security Monitoring

Systems & Security Support Analyst

Infosys

Jul 2018 - May 2021 (2 years 10 months)

Supported Windows and Linux environments, handled user access requests, and assisted with VPN and MFA troubleshooting. Performed antivirus alert reviews and supported patch deployment.

Windows Administration Linux Administrator VPN MFA Antivirus Patch Management Incident Response Asset Management