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Introduction
In an increasingly complex threat landscape, cybersecurity remains a top priority for Tata Power Company Limited. Over the past year, our organization has made strategic investments to strengthen its cybersecurity posture by implementing proactive measures to safeguard critical assets, mitigate emerging threats, and ensure compliance with industry standards.
As our organization increasingly integrates digital technologies into operational environments, Information Technology (IT) and Operational Technology (OT) security has become a critical priority. The convergence of IT and OT has expanded our risk landscape, making industrial control systems (ICS), SCADA networks, and critical infrastructure more susceptible to cyber threats.
Key IT-OT Security Achievements
- Access Security & Insider Threat Mitigation – Enforced Multi-Factor Authentication (MFA) and Least Privilege Access, decreasing unauthorized access attempts and improving regulatory compliance. The Identity Prevention has improved our overall visibility in identity-based attacks. It has significantly improved the overall correlation with Advanced SIEM leading TPCL to contain the incidents in the initial phase of the Cyber Attack Lifecycle.
- Data Security - Implemented AI driven DLP solution along-with CASB to protect sensitive data to ensure we sustain ourselves as a preferred customer choice to protect both data and the privacy.
- Strengthened Cyber Resilience – Implemented advanced threat detection and response capabilities, reducing incident response time by 20%, minimizing potential financial losses from cyber threats. Thereby enabling faster identification and mitigation of security risks.
- Risk Reduction & Financial Protection – Improved security controls, resulting in a 10%-15% reduction in security incidents.
- Incident Response & Business Continuity – Conducted ransomware drills and tabletop exercises, ensuring our teams can respond to incidents faster, minimizing operational disruptions.
- Compliance & Governance – Maintained full compliance with ISO 27001, NIST, IEC 62443, CEA and other regulatory standards, reducing the risk of fines and legal exposure.
- Security Awareness & Culture Shift – Delivered targeted cybersecurity training, improving phishing resilience by reducing the likelihood of human-driven security incidents.
- Assumed-Breach Assessment - TPCL from last two-years have adopted "Assumed Breach" assessment to proactively assess and strengthen our security posture. Rather than focusing solely on perimeter defences, this approach assumes that threat actors have already gained initial access to our environment. The goal is to evaluate our detection and response capabilities, identify security gaps, and enhance resilience against sophisticated attacks such as ransomware, lateral movement, and data exfiltration.
- Listing protection first, before detection, response, and recovery, was no accident. TPCL recognizes that proactive security means shifting emphasis to protecting assets against attacks in the first place, rather than over-emphasizing detection of attacks already in progress.
TPCL advocates Four Core requirements
1. Oversee and drive cyber security strategy
2. Drive cyber security governance and services
3. Anticipate emerging threats and manage on-going incidents
4. Build a cyber security culture across TPCL and it's entities.
Unified Collaboration Achievements
TPCL works and collaborates very closely with its entities to ensure "Unified Governance Framework". While we ensure the decentralized approach to minimize the impact of an attack, TPCL and Its entities have begun to approach Cyber with an enterprise-wide perspective. Through cross-entity cooperation, we have strengthened security postures across organizations, reduced cyber risks, and improved regulatory compliance while ensuring business continuity.
By aligning cybersecurity efforts, sharing intelligence, and adopting joint defence strategies, we have significantly enhanced threat detection, response capabilities, and overall cyber resilience.
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Moving forward, we will continue to invest in advanced security technologies, foster cross-functional collaboration, and drive a culture of cybersecurity awareness. By integrating Zero Trust principles, automation, and intelligence-driven defences, we ensure that cybersecurity remains a business enabler and a foundation for long-term success.
With strong leadership support and ongoing enhancements, we are well-positioned to anticipate, mitigate, and respond to emerging cyber risks, ensuring the security and trust of our stakeholders, partners, and customers.
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