Safeguarding an oil refinery against cyber threats | HCLTech

Safeguarding an oil refinery against cyber threats

Our client is a medium-sized South African refinery with over 50 years of experience refining heavy crude oil. 
5 min read
5 min read

The Challenge

Increased risk of ransomware attacks

Our client wanted to prevent, detect, investigate and respond to advanced threats and ransomware attacks.

  • Lack of security monitoring solution to detect and mitigate threats
  • Increased risk of threats through end users such as phishing attacks, email threats and malware campaigns

The Objective

Improve cyber resilience

Our client aimed to enhance cyber resilience by mitigating security threats.


The Solution

Integration of a threat protection solution

Recognizing our client’s requirement, HCLTech proposed the following solutions:

  • Greenfield deployment of Microsoft Sentinel to provide uninterrupted 24/7 security monitoring, threat detection and response
  • Tailored configurations and integrations were successfully deployed to meet the unique requirements and operational characteristics of the client’s IT estate and provide adequate security monitoring of the security controls
  • Implemented M365 E5 Threat Protection Solution including Microsoft Defender for Endpoint (MDE), Microsoft Defender for Identity (MDI), Microsoft Defender for Office 365 (MDO), The Microsoft Cloud App Security (MCAS) and Bitlocker to provide robust cloud services like email behavior analysis, cloud security analytics and threat intelligence to manage and monitor the overall threat protection landscape
  • Migrated from ClearSwift to Exchange Online Protection (EOP) with all advanced capabilities and rules —also, activated and deployed with impersonation phishing policies, overall enhancements and email security solution, spoofing intelligence, mailbox intelligence, safe links and safe attachments for office applications, MS Teams, OneDrive, SharePoint, threat investigation and response capabilities with the latest intelligence managed from M365 Defender

The Impact

Rapid threat detection and response around the clock

HCLTech helped the client improve their posture.

  • 24/7 security monitoring of the IT estate for quick threat detection and response
  • Zero-day protection to safeguard by checking email attachments for malicious content using machine learning and analysis techniques
  • Cyber resilience with advanced and operationally effective XDR solution