By Erik van Klinken
Publication Date: 2025-11-21 07:34:00
Cisco is phasing out insecure legacy features and hardening device configurations as part of a new resilient infrastructure initiative. The effort is a direct response to threats from AI-powered attacks and prepares networks for post-quantum cryptography. In the process, it is making secure-by-default the baseline.
Organizations face escalating risks from outdated protocols and misconfigurations that weren’t designed for modern threats. Cisco’s approach shifts responsibility away from administrators manually hardening systems. “We believe it is the responsibility of all trustworthy vendors, including Cisco, to inform customers when the use of certain technology may expose them to potential risks,” chief security and trust officer Anthony Grieco stated in a blog post.
The initiative accelerates retirement of older capabilities embedded across networking platforms. This includes deprecating risky features, tightening baseline configurations and…
