Which of the following attacks was used?

An attacker replaces a digitally signed document with another version that goes unnoticed Upon reviewing the document’s contents the author notices some additional verbiage that was not originally in the document but cannot validate an integrity issue.

Which of the following attacks was used?
A . Cryptomalware
B. Hash substitution
C. Collision
D. Phishing

View Answer

Answer: B

Explanation:

This type of attack occurs when an attacker replaces a digitally signed document with another version that has a different hash value. The author would be able to notice the additional verbiage, however, since the hash value would have changed, they would not be able to validate an integrity issue.