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HISTORICAL ARCHIVE · Originally published May 15, 2023
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Quantum computing's rising cybersecurity threat

Quantum computing is the most modern and revolutionary data processing approach. But, the benefits come at a cost: increasing cybersecurity risks.

This is an earlier piece from the AmbiSecure engineering archive. Where the field has moved on, the link above points to current coverage of the same topic.

Quantum computing is the most modern and revolutionary data processing approach. But, the benefits come at a cost: increasing cybersecurity risks. This essay will explain what quantum computing is, what security risks it may pose, and how you might protect yourself from such assaults.

What exactly is quantum computing?

Quantum computing is a kind of computing that processes data using quantum bits (qubits) rather than conventional bits (bits). Since qubits may exist in numerous states at once, quantum computers can do computations significantly quicker than regular computers.

Potential Security Risks

While the rise of quantum computing has many advantages, it also brings with it security risks that might be devastating. The likelihood of cracking present encryption technologies is one of the most significant risks.

The computational complexity of some mathematical problems, such as factorization or discrete logarithm, is used in most current encryption. Nevertheless, quantum computers may solve these issues in seconds or minutes, rendering most classical cryptography useless.

Another risk is that quantum computers will allow attackers to impersonate legitimate users. A quantum computer might be used to produce the private key of a digital certificate, which could then be used to impersonate the actual user.

Countering Quantum Computing Threats

Using quantum-safe encryption is one of the most effective techniques to guard against quantum computing risks. Quantum-safe encryption is built on mathematical problems that are impervious to quantum assaults.

Another approach is to employ quantum key distribution (QKD). QKD employs quantum mechanics features to securely communicate a key between two parties. This key is then used to encrypt data using standard encryption methods.

Businesses may also prepare for the future by researching post-quantum cryptography possibilities. This includes making cryptographic protocols resistant to quantum attacks.

Sources referenced in the original post

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This archive piece reflects thinking from May 15, 2023. For a current-generation treatment of the same topic, see our modern coverage.

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Frequently asked questions

What exactly is quantum computing?

Quantum computing is a kind of computing that processes data using quantum bits (qubits) rather than conventional bits (bits). Since qubits may exist in numerous states at once, quantum computers can do computations significantly quicker than regular computers.

What does this article say about potential Security Risks?

While the rise of quantum computing has many advantages, it also brings with it security risks that might be devastating. The likelihood of cracking present encryption technologies is one of the most significant risks.

What does this article say about countering Quantum Computing Threats?

Using quantum-safe encryption is one of the most effective techniques to guard against quantum computing risks. Quantum-safe encryption is built on mathematical problems that are impervious to quantum assaults.

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