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eDiscovery Featured

Strategy and Support: Partnering with a Telecom Giant in the Wake of a Cybersecurity Breach

| August 8, 2025

The Challenge:

A major Canadian telecom company came to Array seeking help after a cybersecurity breach exposed both employee and customer data on the “dark web.” Array assisted by reviewing and reporting on 145,000 compromised PII documents, identifying what information was breached, who it belonged to, and whether the individuals were customers or employees. Conducting this review in-house or through external counsel would have been both costly and extremely time-consuming.

AT A GLANCE

Our client need to quickly review 145,000 compromised PII documents after a cybersecurity breach, a task too costly and time-consuming to handle in-house or through external counsel.

RESULTS

Array’s Intelligent Review team identified over 4,300 PII-containing documents affecting 3,750 individuals, delivering actionable insights that enabled the client to assess risk and reduce potential future liabilities.

 

The Solution:

Array implemented a complex, technology-based workflow leveraging automation to efficiently handle the large volume of compromised PII documents.

 

 

  • Strategic Data Reduction: Through detailed analysis, the Intelligent Review team reduced the initial set of 145,000 documents to 47,000 requiring review, streamlining the process and driving significant efficiencies.

 

  • Bespoke Intelligent Review: Array’s team identified over 4,300 PII-containing documents affecting more than 3,750 individuals, producing a final report that provided the client with detailed insights to understand obligations and assess risk.

 

  • Collaborative Execution: Automation and expert review combined to deliver cost and time savings while providing invaluable insight to support the client’s goal of mitigating potential future Class Actions or privacy regulatory fines.

 

The Results:

 

  • Final report delivered: Provided detailed insights for the client to fully understand obligations and make an informed risk assessment

 

  • Time and cost savings through automation: Streamlined review of compromised PII documents

 

  • Invaluable risk mitigation insight: Helped the client address potential future Class Actions or privacy regulatory fines

 

The Array Advantage

When sensitive data is on the line, Array brings speed, accuracy, and control. Our intelligent workflows and expert review teams help clients meet legal obligations efficiently—without overwhelming internal teams or inflating costs.

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