A data leak is a security incident where sensitive data is accidentally exposed, either electronically or physically. Electronic data leaks often occur when sensitive data is found on the internet, such as through cloud leaks, while physical data leaks can occur through lost devices like hard drives, laptops, or cell phones. Unlike a data breach, data leaks can happen due to subpar data security practices or human error. When data is exposed, it can lead to a data breach without prompt remediation, making it an easy attack vector for cybercriminals. If a password appears in a data leak, it means that the account is at high risk of compromise, and the user should change the password immediately
. Apple sends data leak notifications when passwords appear in a data breach, leaving accounts vulnerable to misuse. These notifications are meant to alert users that their sensitive information has been exposed, and prompt them to change the affected passwords immediately to protect their online privacy and security
