A security deadline is bearing down on millions of Windows and Linux computers, and most people who use them have no idea it exists.
According to Wired, the cryptographic keys that secure your computer's boot sequence will start to expire on June 24. The boot sequence is the chain of steps a machine runs the moment you power it on, before the operating system itself fully loads. Cryptographic keys are used at this stage to verify that the software starting up is legitimate and hasn't been tampered with.
Wired frames the approaching date as a critical deadline for both Windows and Linux systems, signaling that the issue is not confined to a single operating system or vendor but touches a broad base of everyday computers.
Beyond those points, the specific mechanics — exactly which keys are affected, what happens to a machine once they lapse, and the precise steps users or administrators should take — are detailed in Wired's reporting, which is the originating source for this story. Readers concerned about their own devices should consult that coverage directly for the technical specifics and any recommended fixes.
Why it matters: the protections that confirm a computer is trustworthy from the instant it turns on don't last forever, and a quiet expiration date like June 24 is a reminder that the security baked into our devices needs ongoing maintenance most users never see.