Industry momentum behind passkeys is accelerating. The FIDO Alliance reports that more than 15 billion online accounts can now use passkeys. Enterprise adoption is following, as FIDO’s research found 87% of surveyed US and UK companies have deployed or are in the process of rolling out passkeys for employee sign-ins. For technology leaders, the question is no longer whether passkeys have value; it’s whether your organization can implement them without introducing new risks. When deployed well, passkeys can materially improve sign-in outcomes and reduce password friction. The hard part is execution. Real-world rollouts must work across diverse devices, browsers, and vendor ecosystems, introducing complexity around portability, device loss and lockout, recovery pathways, and inconsistent platform behavior. This article focuses on rollout realities so CIOs, CISOs, and IAM leaders can adopt passkeys, deliberately capturing the benefits without being surprised by the tradeoffs.