We collect: email address, hashed password, monitoring preferences, and access logs (IP, browser, timestamps). This data is used only for account management, sending vacancy notifications, service improvement, security, and important announcements. We do not share personal data with third parties except with user consent, legal obligation, or to protect life/safety. We use cookies for login sessions only (no advertising trackers). Security measures include SSL/TLS encryption, password hashing, and access controls. Account data is retained while the account is active; access logs are deleted after 90 days. Users may view/edit their information, request account deletion, or request data disclosure via the settings page.