AES (Advanced Encryption Standard) is a symmetric encryption algorithm, meaning that it uses the same key for both encryption and decryption.

A digital certificate is an electronic document that contains information about a user or device, such as their name, organization, and public key. It is used to authenticate the user or device to a server or other entity.

Discretionary Access Control (DAC) is a type of access control in which the owner of a resource determines who can access it.

Data masking is a technique used to protect sensitive data by replacing it with fictitious or synthetic data that maintains the same statistical properties as the original data.

Phishing is a type of security threat in which attackers attempt to trick users into revealing sensitive information, such as passwords or credit card numbers, by disguising themselves as legitimate organizations.

A firewall is a network security device that monitors and controls incoming and outgoing network traffic based on predetermined security rules.

Strong passwords should be at least 12 characters long and include a mix of upper and lower case letters, numbers, and symbols. Avoid using common words or phrases, personal information, or the same password for multiple accounts.

Encryption is the process of converting data into a form that cannot be easily understood without the appropriate key. Hashing is the process of converting data into a fixed-size value that is used to verify the integrity of the data.

A virus is a type of malware that can replicate itself and spread from one computer to another. It can attach itself to legitimate programs or files and execute its malicious code when the program or file is run.

A security audit is a systematic review of an organization's security controls and procedures to identify vulnerabilities and make recommendations for improvement.

Physically destroying storage devices is the most secure way to dispose of data, as it ensures that the data cannot be recovered.

A security incident response plan outlines the steps that an organization should take in the event of a security incident, such as a data breach or cyberattack.

A brute-force attack is a type of cryptographic attack in which an attacker tries all possible combinations of keys until they find the correct one.

A security awareness training program educates employees about security threats and best practices to help them protect the organization's data and systems.