The industry shift to 47-day TLS certificates by 2029, with interim reductions to 200 days in 2026 and 100 days in 2027, exposes major readiness gaps. A survey of 800 security leaders revealed 73% fear chaos, 94% are concerned about shorter lifespans, and 83% already suffer annual certificate-related outages. Top worries include rising costs, resource strain, and increased outages, as machine identities outpace humans 82:1. Most firms lack automation, with 29% still using spreadsheets and needing over two days for manual deployment. Automation, continuous discovery, and CA agility are essential to manage scale, ensure resilience, and prepare for post-quantum risks.

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