Which of the following is MOST appropriate for protecting confidentially of data stored on a hard drive?

The correct answer is B. Advanced Encryption Standard (AES). The Advanced Encryption Standard (AES) is the most widely used and recommended encryption standard for protecting the confidentiality of data stored on a hard drive. AES is a symmetric key encryption algorithm that provides strong security and efficiency for encrypting large amou

Submitted by noor.lb· Mar 5, 2026Security Architecture and Engineering

Question

Options

ATriple Data Encryption Standard (3DES)
BAdvanced Encryption Standard (AES)
CMessage Digest 5 (MD5)
DSecure Hash Algorithm 2(SHA-2)

How the community answered

(38 responses)

A
3% (1)
B
87% (33)
C
3% (1)
D
8% (3)

Explanation

The Advanced Encryption Standard (AES) is the most widely used and recommended encryption standard for protecting the confidentiality of data stored on a hard drive. AES is a symmetric key encryption algorithm that provides strong security and efficiency for encrypting large amounts of data, making it ideal for encrypting files or whole disk drives. Key points about AES: AES is highly efficient, secure, and widely accepted for use in protecting data at rest, such as on hard drives, file systems, and in database storage. AES supports various key lengths (128, 192, or 256 bits), with AES-256 being considered one of the most secure options. It is recognized and approved by many standards organizations, including the National Institute of Standards and Technology (NIST), and is used by governments and organizations worldwide for securing sensitive information.

Topics

#Data at rest encryption#AES#Cryptography#Data confidentiality

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