Top Canadian telecom firms may have been hit by Chinese Salt Typhoon hackers

• Canadian telecom firms have been hit with a cyberattack
• Chinese threat actor Salt Typhoon is suspected to be behind the attacks
• Hackers exploited an existing Cisco flaw to gain access

The Canadian Centre for Cyber Security, alongside the FBI, have confirmed hackers were able to gain access to three network devices registered to a Canadian Telecommunications company.

“The Cyber Centre is aware of malicious cyber activities currently targeting Canadian telecommunications companies. The responsible actors are almost certainly PRC state-sponsored actors, specifically Salt Typhoon,” The Canadian Centre for Cybersecurity said in a statement.

This isn’t unfamiliar territory for Salt Typhoon, as the group compromised at least eight US telco giants earlier in 2025, with the hackers allegedly having access to these networks for months in a mass surveillance campaign affecting dozens of countries and targeting several high-level officials.