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What is Q-day? Biggest cybersecurity threat you’ve never heard of
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What is Q-day? Biggest cybersecurity threat you’ve never heard of

ARY News · Jun 27, 2026, 7:39 PM · Also reported by 1 other source

Key takeaways

  • Add ARY News on Google AAResize Quantum computers pose an existential threat to modern encryption.
  • Q-Day marks the theoretical moment when these machines become capable enough to decrypt data currently considered unhackable.
  • How do quantum computers shatter encryption?

Why this matters: local context for readers following news across Pakistan and the region.

Add ARY News on Google AAResize Quantum computers pose an existential threat to modern encryption. Within four years, Google and IBM say they’ll deploy quantum machines powerful enough to break the sophisticated cryptography protecting banking transactions, government IDs, and classified communications, a threat scenario experts call Q-Day.

The “Q” stands for quantum. Q-Day marks the theoretical moment when these machines become capable enough to decrypt data currently considered unhackable.

How do quantum computers shatter encryption?

Article preview — originally published by ARY News. Full story at the source.
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