The technology commonly used to safeguard sensitive personal information online is called encryption. By converting data into a secure format that can only be accessed with a specific key or password, encryption protects user information from unauthorized access and cyber threats. It is widely utilized in various applications, including secure communications, online banking, and data storage. Strong encryption algorithms ensure that even if data is intercepted, it remains unreadable to unauthorized individuals. Implementing encryption is crucial for maintaining privacy, security, and compliance with data protection regulations.