Which of the following is the GREATEST threat posed by quantum computing technology for information security?

The correct answer is A. Quantum computers can break several current encryption schemes protecting the confidentiality. The greatest threat posed by quantum computing to information security is its potential to break widely used encryption algorithms, such as RSA and ECC, which are foundational to data confidentiality. Quantum algorithms like Shor’s algorithm can factor large integers efficiently,

Submitted by femi9· Apr 18, 2026Information Security Risk Management

Question

Options

AQuantum computers can break several current encryption schemes protecting the confidentiality
BQuantum computers can allow for secure communication that benefits only the few who can
CQuantum computers can compromise availability through extremely rapid processing of large
DQuantum computers can simulate complex physical systems that are beyond the reach of

How the community answered

(27 responses)

A
89% (24)
B
7% (2)
D
4% (1)

Explanation

The greatest threat posed by quantum computing to information security is its potential to break widely used encryption algorithms, such as RSA and ECC, which are foundational to data confidentiality. Quantum algorithms like Shor’s algorithm can factor large integers efficiently, undermining the security of current public-key cryptosystems.

Topics

#Quantum Computing#Cryptography#Emerging Threats#Information Confidentiality

Community Discussion

No community discussion yet for this question.

Full CISM Practice