Security Notice from Diallog Telecommunications

At Diallog, the privacy and trust of our customers and partners are central to everything we do. This notice is to inform you of a recent security incident that may have affected certain data.

What Happened

On April 26, 2025, Diallog identified unauthorized access to certain internal systems by a third party. Upon discovery, we took immediate steps to contain the incident, secure our infrastructure, and launch a full investigation with the support of cybersecurity professionals.

The investigation is ongoing. However, based on what we currently know, the affected systems may have included files containing customer and account-related information.

What Information May Have Been Involved

While we are still assessing the full scope, the following types of information may have been accessed:

• Customer name, address, and email
• Call history (Call Detail Records)
• Pricing or contract terms
• For a limited number of residential customers: payment-related records associated with failed or closed accounts

Please note: no passwords, login credentials, or active credit card information were stored in or compromised through the affected systems.

What Weˋre Doing

• We immediately secured the affected systems and isolated the incident
• We are continuing our investigation with external cybersecurity experts
• We have notified the Office of the Privacy Commissioner of Canada
• We are reviewing and enhancing our security practices company-wide
• We are proactively notifying customers and partners through invoices and this public notice

What You Can Do

We believe the risk to most individuals is low. However, we recommend:

• Monitoring your account activity for anything unusual
• Being cautious of unsolicited communications asking for personal information
• Contacting us if you would like to confirm what information of yours may have been involved

If you are a reseller or business partner, and you would like help communicating with your end customers, please reach out to our privacy team directly.

Contact Us

If you have questions, concerns, or require assistance, please contact:
Diallog Privacy Office
Email: privacy@diallog.com
Phone: 1-888-443-3876

We sincerely regret any inconvenience or concern this may cause. We are taking this incident seriously and remain committed to transparency, accountability, and protecting the data entrusted to us.
– The Diallog Team