Will Quantum Computers Destroy the Internet? | DW News

Why It Matters

If quantum-capable attacks arrive before systems are updated, they could compromise governments, banks and private data at massive scale, creating systemic economic and security risks; timely adoption of quantum-resistant encryption is therefore a strategic imperative.

Summary

Researchers and tech companies warn that by as early as 2029—an event dubbed “Qday”—quantum computers could become powerful enough to break the public-key encryption that underpins the internet. That would expose national security systems, critical infrastructure, financial networks and personal data, and enable “harvest now, decrypt later” attacks on archived encrypted communications. The threat is not merely theoretical: adversaries are already stealing encrypted data in anticipation of future decryption. In response, a global effort is underway to develop and deploy post-quantum cryptography to replace vulnerable algorithms before Qday arrives.

Original Description

Google warns that quantum computers could hack encrypted systems like banking apps by 2029. Here is why hackers are already stealing your encrypted data.

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