Legacy PKI is often seen as cost-effective, but hidden expenses make it resource-heavy and inefficient. Running Microsoft ADCS can require over $315K in hardware, including CA, HSM, and SQL servers, plus $372K in resource costs for dedicated PKI teams, IT admins, and integrations. Additional expenses arise from licenses, training, disaster recovery, and ongoing maintenance, driving up total ownership costs. In contrast, cloud-based PKI-as-a-Service solutions like Venafi Zero Touch PKI offer simplified deployment, scalability, and high availability without the burden of on-premises infrastructure, dedicated staff, or hidden costs, delivering long-term savings and resilience.

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