CompTIA Security+ (SY0-501) — Question 155

Which of the following is the LEAST secure hashing algorithm?

Answer options

• A. SHA1
• B. RIPEMD
• C. MD5
• D. DES

Correct answer: C

Explanation

MD5 is widely recognized as the least secure hashing algorithm among the options due to vulnerabilities that allow for collision attacks. While SHA1 and RIPEMD are also considered weak, they are generally stronger than MD5. DES, on the other hand, is an encryption algorithm and not a hashing algorithm, making it irrelevant in this context.