Microsoft's decision to phase out SMS-based authentication marks more than a usability upgrade; it directly confronts the persistent exploitation of SMS vulnerabilities by state actors and cybercriminals targeting critical infrastructure. While the TechSpot report highlights the shift toward passkeys for phishing resistance, it underplays how SMS interception has enabled targeted operations against government networks and defense contractors, as seen in repeated SIM-swapping campaigns linked to Iranian and North Korean groups. This move aligns with broader patterns where FIDO2 and WebAuthn standards reduce reliance on out-of-band channels that adversaries routinely compromise through telco access or social engineering. Original coverage misses the infrastructure angle: widespread passkey adoption could harden supply chains but risks creating single points of failure if major platforms centralize biometric or hardware-bound credentials, potentially amplifying surveillance capabilities for compliant states. Drawing on NIST SP 800-63B guidelines emphasizing phishing-resistant authenticators and Google's reported 50% drop in account takeovers post-passkey rollout, the transition signals a power shift away from telecom-dependent security toward device-centric models. Analysts note this could limit foreign intelligence collection via SMS gateways, though it demands urgent policy updates for legacy systems in defense and energy sectors still clinging to legacy protocols.