Final answer:
Symmetric encryption algorithms are used to protect data by using the same key to encrypt and decrypt it. They provide increased security for both individuals and companies/governments. Examples include the Advanced Encryption Standard (AES) and two-factor authentication.
Step-by-step explanation:
Symmetric encryption algorithms are used to protect data by using the same key to encrypt and decrypt it. This type of encryption ensures that only authorized parties can access the data. One example of a symmetric encryption algorithm is the Advanced Encryption Standard (AES), which is widely used in industries and government agencies. Companies and governments can implement stronger protections on their websites by using symmetric encryption algorithms. For example, they can encrypt sensitive data such as passwords, credit card information, and personal details using AES. This makes it extremely difficult for unauthorized individuals to access and manipulate the data. Individuals can also benefit from symmetric encryption algorithms in terms of increased security.
For example, two-factor authentication combines something you know (like a password) with something you have (like a verification code sent to your phone) to ensure that only you can access your accounts. This additional layer of security can help protect your personal information from being compromised.