Data corruption occurs when information stored in a computer or digital device becomes damaged or altered, making it unreadable or inaccurate. This can happen due to various reasons, such as hardware failures, software bugs, or unexpected power outages. When data is corrupted, it can lead to loss of important files, errors in applications, or even system crashes. To prevent data corruption, it's essential to regularly back up your files and use reliable storage devices. Tools like antivirus software can help protect against malicious attacks that may cause corruption. Additionally, maintaining your computer and keeping software updated can reduce the risk of encountering data corruption issues.