Check Point Certified Security Expert (CCSE) R81 — Question 288

Which encryption algorithm is the least secured?

Answer options

• A. AES-128
• B. DES
• C. 3DES
• D. AES-256

Correct answer: B

Explanation

DES is considered the least secure encryption algorithm among the options because it uses a short key length of 56 bits, making it vulnerable to brute-force attacks. In contrast, AES-128 and AES-256 utilize significantly longer key lengths, while 3DES, although stronger than DES, is still less secure compared to the AES options.