Change Password
Use a strong, unique password you don't use elsewhere.
App Lock
Require Face ID, Fingerprint, or your device passcode in addition to your password. Works on any device that supports biometrics or has a PIN/passcode set.
Sign in to manage app lock.
Danger Zone
Deleting your account is permanent: you are signed out everywhere, your login stops working, and your personal details are removed. Course records and payment history are retained for institutional record-keeping.