Vonage brings carrier-backed fraud checks to Canada

Fraud teams have spent years asking customers to prove they are not criminals. Vonage is betting Canadian mobile networks can take on more of that work in the background.

The Ericsson-owned company has launched its network-powered fraud prevention tools in Canada, giving enterprises and developers access to SIM Swap Detection and Silent Authentication through Vonage network APIs.

These APIs connect to carrier data through Aduna, a telecom API aggregator, and EnStream, a joint venture between Bell, Rogers, and Telus that provides access to mobile identity and network data.

This is key, because Vonage can use carrier data, including recent SIM changes, instead of forcing every customer through another one-time code. Vonage cites Canadian Anti-Fraud Centre figures showing 33,854 fraud cases and $544 million in losses in Canada in 2025. 

CIOs and CISOs now have another control to weigh. Carrier-based checks may help at moments such as account recovery or payment changes, but someone still has to decide where the extra verification belongs.

SIM Swap Detection is designed to flag recent SIM card changes in real time, a common warning sign in account takeover attempts. Vonage says that the tool can improve fraud detection rates by 30% to 40%, based on estimates from prior implementations and fraud benchmarks.

Silent Authentication takes a different route. Instead of sending a one-time passcode, it uses mobile network intelligence to verify the user’s phone number and SIM association through the device’s active mobile data session. Vonage says the tool can fall back to RCS, WhatsApp, SMS, voice, or email when needed.

“As generative AI evolves and fraud tooling is becoming increasingly available, fraudsters are becoming increasingly more sophisticated, outpacing traditional security measures. This makes network-based verification a critical component for modern enterprises,” says Christophe Van de Weyer, president and head of business unit API at Vonage.

Ontario-based Storage Guardian is already using Vonage’s SIM Swap Detection in its incident response offering.

“By integrating Vonage’s network powered solutions into our Incident Response offering we are providing our clients with the tools to ensure seamless, secure communication during critical events,” says Omry Farajun, owner/operator of Storage Guardian.

The governance question now moves to implementation. If network signals become part of identity verification, Canadian technology leaders will need to decide who owns the risk model, who sees the data, and where customer friction is allowed to show up.

Final shots

• CIOs now have another authentication option to assess, one that uses carrier data rather than relying only on app-level checks.
• CISOs will need to decide where SIM swap detection and silent authentication belong in the fraud control stack.
• The practical test is whether these checks reduce account takeover risk without turning every login or recovery flow into a customer support problem.