Monitoring your accounts in Dropbox Passwords helps keep them secure. When you opt into breach monitoring, you'll be notified when an account linked to your email address has been exposed and is at an increased risk of being accessed by someone who shouldn’t have that information.
In the Dropbox Passwords security dashboard, you can view which of your accounts, if any, have been compromised. You can also see other important details such as: the compromised website, breach date, number of people affected, and what data was potentially leaked in the breach. You’ll also be directed to the compromised account’s website to change your password.