Fibrenoire Listed by The Gentlemen Ransomware Group

On June 1, 2026, Canadian telecommunications provider Fibrenoire was listed on the leak site of the ransomware group known as thegentlemen. The company, which supplies dedicated fiber-optic internet, private networks, VoIP, and cloud services to businesses across Quebec and Ontario, is claimed to have had internal files exfiltrated during a ransomware attack. While the exact number of individuals whose information appears in the stolen data remains unknown, any Fibrenoire business customer, partner, or employee whose details were stored in those systems could now be exposed.

What Public Reporting Shows

Public reporting indicates that Fibrenoire was listed by thegentlemen on their leak site on June 1, 2026. The data consists of internal files exfiltrated during a ransomware incident. Fibrenoire operates as part of Videotron Business and focuses on high-speed fiber connectivity for commercial clients in Quebec and Ontario. No confirmed total of affected records has been released, and the precise contents of the leaked files have not been independently verified by third parties. The listing appeared on the portal reachable at thegentlemen’s leak site, tracked publicly by ransomware.live.

Why This Matters for You and Your Family

When a telecommunications provider like Fibrenoire suffers a breach, the ripple effects reach far beyond corporate networks. Business customers often store employee records, client contracts, billing information, and contact details on these systems. If your workplace or small business uses Fibrenoire for internet, VoIP, or cloud services, your name, email, phone number, or business address may have been inside the stolen files. For families, this can mean increased risk of targeted phishing, identity theft, or harassment that starts from what seems like harmless business data. Even if you are not the primary account holder, information tied to your household could surface.

Credential leaks like this one frequently cascade into account takeovers on other services where the same email or password is reused.

The Doxxing and Identity-Chain Implications

Stolen internal files from a telecom provider often contain spreadsheets, customer databases, or configuration details that link email addresses, phone numbers, account IDs, and physical locations. Attackers can combine this information with data from previous breaches to build a complete picture of your online and offline identity. What begins as a business record can quickly connect to your personal email, social media handles, or children’s accounts. This chaining effect turns a single breach into a roadmap for doxxing, SIM-swapping, or harassment campaigns that can affect every member of your household.

Thegentlemen’s Publicly Known Track Record

Public reporting attributes the group’s emergence to late 2024. Thegentlemen has targeted mid-sized organizations across North America and Europe, with prior victims including logistics firms, manufacturers, and technology service providers. Their typical playbook involves gaining initial access through phishing or exploited remote desktop credentials, followed by claimed exfiltration of sensitive files before deploying ransomware. They then pressure victims with a short deadline to pay, threatening to publish stolen data on their leak site if demands are not met. Exact success rates and ransom payment totals remain unconfirmed in open sources.

What to do

• Run a DoxxScan to map every link between your handles, emails, phone numbers, and real identity, with cleanup handled by the service.
• Enable continuous DoxxScan monitoring across 13.1B+ breach records and 100+ platforms so the next exposure is caught in hours rather than months.
• Rotate any password you used at Fibrenoire or related Videotron services anywhere it has been reused, and switch on 2FA using an authenticator app instead of SMS.
• Cover the household with DoxxScan family protection that extends to dependents and children’s gaming accounts, which often chain back to the same addresses or parent emails.
• Let remediation specialists perform hands-on takedown requests across data brokers and leak sites on your behalf.

The incident underscores that even specialized business providers can become gateways to personal exposure. Taking deliberate steps now limits how far attackers can travel along the identity chain created by this and future leaks. DoxxScan by GalaxyWarden delivers continuous monitoring across 13.1 billion+ breach records and more than 100 platforms, AI-powered identity-chain mapping, hands-on remediation by specialists, and full household coverage that includes children’s gaming accounts—making it an effective shield against the credential-stuffing and doxxing cycles that follow incidents like the Fibrenoire breach.