In the context of cybersecurity, what does the term 'replay attack' refer to?

In the context of cybersecurity, what does the term 'replay attack' refer to?

• A. Intercepting and forwarding a message
• B. Decrypting a secure system
• C. Unauthorized access to data
• D. Submitting the same transaction multiple times

Answer: (D)

The term 'replay attack' specifically refers to the act of submitting the same transaction multiple times after it has been intercepted. In this type of attack, an adversary captures valid data transmissions and later retransmits them to the intended recipient or system. This can lead to fraudulent transactions, unauthorized access, or repeated actions that may cause disruption or other malicious outcomes. In many cybersecurity scenarios, especially within financial transactions, replay attacks exploit vulnerabilities in communication protocols that do not adequately protect against the resending of previously captured messages. This characteristic distinguishes replay attacks from other cybersecurity threats, such as simply intercepting and forwarding messages or decrypting secure systems. Each of those scenarios involves different attack mechanisms and objectives. The essence of a replay attack lies in the misuse of legitimate messages that should have been single-use, thereby causing harm through their repeated use.

The term 'replay attack' specifically refers to the act of submitting the same transaction multiple times after it has been intercepted. In this type of attack, an adversary captures valid data transmissions and later retransmits them to the intended recipient or system. This can lead to fraudulent transactions, unauthorized access, or repeated actions that may cause disruption or other malicious outcomes.

In many cybersecurity scenarios, especially within financial transactions, replay attacks exploit vulnerabilities in communication protocols that do not adequately protect against the resending of previously captured messages. This characteristic distinguishes replay attacks from other cybersecurity threats, such as simply intercepting and forwarding messages or decrypting secure systems. Each of those scenarios involves different attack mechanisms and objectives. The essence of a replay attack lies in the misuse of legitimate messages that should have been single-use, thereby causing harm through their repeated use.