CRTC validates carrier transition to TLS 1.3 to secure data exchanges

This move strengthens the foundational security of the Canadian telecommunications stack, protecting the intercarrier links that handle critical service requests and billing data. By mandating TLS 1.3, the CRTC ensures that carriers bypass the cryptographic vulnerabilities of older protocols while gaining the performance benefits of a faster 1-round-trip handshake. In an ecosystem increasingly focused on network resilience, this standardization shortens the onboarding time for new connections and reduces technical friction between providers. Watch for similar regulatory mandates to trickle down to secondary service providers as the industry moves toward post-quantum encryption readiness.

The formalization of TLS 1.3 adoption follows a broader shift in Canadian regulatory priorities toward infrastructure security. In June 2026, the CRTC expanded its network-level blocking framework, permitting carriers to preemptively disrupt botnets and other harmful traffic before reaching consumer devices (per CRTC, June 2026). This regulatory push aligns with the enactment of Bill C-8, which officially established security as a core objective of the Telecommunications Act, providing the statutory basis for more aggressive safety mandates (per Dentons, June 2026).

Beyond Canada, the migration to TLS 1.3 has become a global operational baseline. By early 2026, roughly 98% of U.S. internet traffic was encrypted via HTTPS, with major cloud providers such as Microsoft Azure having already deprecated legacy TLS 1.0 and 1.1 protocols in 2024 to force a minimum of TLS 1.2 or higher (per SSLReminder, January 2026). The industry is now pivoting toward 'RFC 8446-bis,' a refresh of the TLS 1.3 standard that tightens key-update requirements and forbids negotiating older, compromised protocol versions.

The push for modern encryption is also being driven by the upcoming threat of quantum computing. Cloudflare reported that by February 2026, more than 60% of client traffic was capable of post-quantum cryptography (PQ), largely due to default support enabled in major browsers like Google Chrome and Mozilla Firefox (per Cloudflare, March 2024). While TLS 1.3 remains the standard, the IETF is currently focused on integrating post-quantum key exchange mechanisms directly into the protocol's existing framework rather than launching a separate TLS 1.4 version.