Data Encryption
Data encryption is a security technique that transforms readable data (plaintext) into an unreadable format (ciphertext) using algorithms and cryptographic keys, ensuring confidentiality and integrity during storage or transmission. It is fundamental to protecting sensitive information from unauthorized access, tampering, or breaches in various digital contexts.
Developers should learn and use data encryption when handling sensitive data such as personal information, financial records, or proprietary business data to comply with regulations like GDPR or HIPAA and prevent data breaches. It is essential in applications involving secure communications (e.g., HTTPS, VPNs), data storage (e.g., encrypted databases), and authentication systems to safeguard against cyber threats.