Check if your email has been exposed in data breaches
The MailDrop account breach check tells you whether an email address appears in publicly known data breaches. Enter an address, complete the quick human verification, and the tool queries the Have I Been Pwned database through our server. If the address was caught in any breach, you get a detailed list showing each incident by name, the date it occurred, and the categories of data exposed, such as passwords, phone numbers, or physical addresses.
Most people are in more breaches than they realize. When a site you registered on years ago gets hacked, your email, password, and profile details can circulate in criminal markets long afterward, fueling phishing, spam, and credential-stuffing attacks. Knowing exactly which breaches include your address, and what data leaked in each one, lets you prioritize: change the passwords that matter, watch for targeted phishing, and retire addresses that are burned.
The check is free and requires no registration. We do not store or log the addresses you query. Going forward, using a MailDrop temporary email address for one-off signups keeps your primary address out of the databases that get breached in the first place.
Type the address you want to check into the field. You can check any address you own, including old ones you no longer actively use, since those often appear in the most breaches.
Solve the Cloudflare Turnstile challenge that appears below the input. This step prevents automated abuse of the lookup and usually requires nothing more than a single click.
Click Check. Our server queries the Have I Been Pwned breach database for your address and returns the results in seconds. The address is used only for this lookup and is not stored or logged.
For every hit you see the breach name, its date, and tags for the data types exposed. Focus first on breaches that leaked passwords, then update credentials on those services and anywhere you reused them.
It means the address was in a database stolen from a specific service, along with whatever data categories are listed for that breach. It does not mean your email account itself was hacked. The practical risks are password reuse attacks, targeted phishing, and spam, so change the affected passwords and stay alert for suspicious messages.
No. The address must pass through our server because the breach database requires authenticated server-side queries, but we use it solely for that single lookup and do not store, log, or profile the addresses queried. The Turnstile verification exists only to stop bots from abusing the endpoint.
Start with the breached services that exposed passwords: change those passwords immediately, and anywhere else you reused them. Enable two-factor authentication on your important accounts, especially email. Then treat unexpected messages referencing those services with suspicion, since breach data is often used to make phishing look legitimate.
A clean result is good news but not a guarantee. The database only covers breaches that have been discovered, verified, and publicly indexed; stolen data sometimes circulates privately for years first. Keep using unique passwords and two-factor authentication, and consider re-checking your address every few months.
Every service that holds your real address is a future breach risk. Using a MailDrop disposable email address for trials, downloads, and one-time signups means those databases contain a throwaway address instead of your identity. MailDrop inboxes are receive-only and expire, so a leaked temp mail address leads nowhere.