Q-Day refers to the impending event when a quantum computer is developed that can break widely used encryption methods, potentially exposing sensitive data globally. Experts predict a staggering one-in-three possibility of this occurring before 2035, with some speculation that it may have already happened covertly. The ongoing quantum arms race highlights the stark contrast between classical and quantum computing, with quantum technology posing unique threats to data security due to its ability to process information in fundamentally different ways, raising alarms over vulnerabilities in numerous domains.
What happens when quantum computers can finally crack encryption and break into the world's best-kept secrets? It's called Q-Day-the worst holiday maybe ever.
When Mosca and his colleagues surveyed cybersecurity experts last year, the forecast was sobering: a one-in-three chance that Q-Day happens before 2035.
This makes quantum computers pretty terrible at, say, storing data but potentially very good at, say, finding the recipe for a futuristic new material (or your email password).
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