Final answer:
Encryption/decryption provides confidentiality, integrity, and authentication services, crucial for protecting personal, financial, and medical information, as well as national security data. It helps in using intelligence and counterintelligence services to combat threats. It can reduce the damage caused by data breaches when combined with enhanced security measures like two-factor authentication.
Step-by-step explanation:
Encryption and decryption can provide several InfoSec services to help protect data and maintain privacy. One key service is the confidentiality of information; encryption ensures that sensitive data can only be read by authorized parties. This is crucial for personal, financial, and medical information that individuals share with businesses and other organizations, as well as for governments and businesses looking to protect their operations and national security secrets.
Additionally, encryption contributes to the integrity of information by protecting it from unauthorized alterations, which is essential for maintaining trust in the data's accuracy. This is especially important for using intelligence services to defeat threats and counterintelligence services to protect against internal threats. Data authentication, another service provided by encryption, verifies the origin and authenticity of a message or transaction, thereby protecting against impersonation and supporting non-repudiation where a user cannot deny their actions.
In the event of a data breach, encryption can limit the damage by making stolen data unreadable to unauthorized users. To further enhance security, individuals can utilize two-factor authentication and stronger passwords, while companies and governments should implement stronger protections on their websites and systems. Regular education on avoiding scams can also help individuals protect their sensitive information from being compromised.