Cloudflare (NET) recently announced plans to become a public certificate authority and support post-quantum Merkle Tree Certificates, aiming to address long-term web encryption risks. This strategic move positions the company deeper within the core trust layer of the internet, where every secure session originates, potentially strengthening its infrastructure role for websites and devices. Investors have responded positively to Cloudflare's expansion into security products like Basin and its new certificate authority capabilities. Consequently, the stock has delivered a significant 79.0% year-to-date return and a substantial three-year total shareholder return, although it has recently seen minor price adjustments over the last few days. Despite the strong recent performance, Simply Wall St analysts suggest the current share price of approximately $350.87 may be overvalued compared to their fair value estimate of around $200 per share. The analysis indicates that while post-quantum security could enhance Cloudflare's competitive moat and customer trust, it is unlikely to become a major standalone revenue line since the upgrades are intended to be available by default rather than as premium add-ons. The article highlights that Cloudflare's valuation premium carries risks if revenue growth slows or if enterprise adoption of post-quantum security fails to materialize. Analysts warn that the market may have already priced in too much future potential regarding quantum-safe security, suggesting investors should carefully weigh the underlying fundamentals against the high current expectations.