Telus Investigates Cyber Breach After Hacker Claims Theft of Up to 1 Petabyte of Data

Canadian telecommunications company Telus Digital is investigating a cybersecurity incident affecting its digital services division after a hacker claimed to have stolen an enormous amount of corporate data.

The alleged breach surfaced after a threat actor posted claims online stating that up to one petabyte of data — roughly 1,000 terabytes — had been exfiltrated from systems tied to Telus Digital, the company’s global digital services arm. According to reporting from BleepingComputer, the attacker also claimed to possess source code and internal company files.

Telus acknowledged the incident and said it had begun investigating the claims after detecting suspicious activity affecting its digital services environment.

“We are aware of a cyber incident involving Telus Digital and are currently investigating,” the company said in a statement cited by Bloomberg and several Canadian media outlets.

Hacker Claims Massive Data Theft

The breach claims have been attributed to a threat actor linked to the ShinyHunters hacking collective, a group known for previous high-profile data breaches targeting major technology companies.

According to CSO Online, the attacker alleged that nearly 1PB of data had been stolen, including corporate information and internal technology assets related to Telus Digital’s platforms. Security researchers say the dataset reportedly includes internal repositories and infrastructure-related materials, although the company has not confirmed the extent of any data exposure.

Cybersecurity experts caution that attackers often exaggerate the scale of breaches when attempting to sell or publicize stolen data.

Telus Says Core Telecom Services Unaffected

Telus stated that the incident appears to be limited to its Telus Digital business unit, which provides digital transformation services, customer experience platforms, and business process outsourcing to enterprise clients.

The company emphasized that its core telecommunications network and customer-facing telecom services were not impacted by the breach.

“Telus’ core network and customer services remain fully operational,” the company said, according to reporting from CBC News.

Telus Digital operates technology and outsourcing services across multiple countries and supports enterprise clients with digital customer service platforms, artificial intelligence tools, and cloud-based operations.

Alleged Data Samples Circulate Online

Samples of data purportedly stolen from the company began circulating online shortly after the breach claims surfaced. According to BleepingComputer, the files appeared to contain internal corporate materials connected to Telus Digital’s technology infrastructure.

However, Telus has not confirmed whether customer data, employee information, or client systems were affected.

The company said it is continuing to investigate the incident and determine the scope of any potential exposure.

Investor Reaction

News of the alleged breach prompted a modest decline in Telus shares after reports surfaced that the company was investigating unauthorized access to its digital services systems.

According to Reuters, investors reacted cautiously as the company works to determine whether the breach resulted in significant data loss or operational disruption.

Telus is one of Canada’s largest telecommunications companies, providing wireless, internet, and digital services to millions of customers across North America.

Telecom and IT Services Firms Remain High-Value Targets

Cybersecurity analysts say the incident highlights growing risks facing telecommunications and IT services providers, which often manage vast digital infrastructure and data platforms for enterprise clients.

Organizations such as Telus Digital operate large global technology ecosystems, making them attractive targets for threat actors seeking to access corporate data or compromise supply chains connected to multiple organizations.

Recent years have seen a growing number of cyberattacks targeting telecom companies, outsourcing providers, and digital platform operators because of the potential for large-scale data exposure.

Investigation Ongoing

Telus said it is working with cybersecurity experts to investigate how the breach occurred and whether sensitive information was compromised.

The company has not publicly confirmed the attacker’s claims or attributed the incident to a specific threat group.

As the investigation continues, security experts say the case serves as another reminder that large technology service providers remain prime targets for cybercriminals seeking high-value datasets and corporate infrastructure access.