Master Deeds data breach (2017): was your email exposed?

Master Deeds suffered a data breach in March 2017 that exposed around 2 million accounts. The leaked records included dates of birth, deceased statuses, email addresses, employers, ethnicities and genders and more. Check whether your email was caught up in it — and lock down your accounts before the data is misused.

Check if my email was exposed — free →
Breach date
2017
Accounts exposed
2 million

What happened in the Master Deeds breach?

Master Deeds was hit by a data breach dated March 2017, exposing around 2 million accounts. Incidents like this happen when attackers break into a company’s user database, or when a misconfigured server or third-party partner leaks it — and the stolen records then spread among other criminals.

The exposed records included dates of birth, deceased statuses, email addresses, employers, ethnicities, genders, government issued ids and home ownership statuses and more. Leaked data doesn’t simply disappear: it gets copied, sold and re-posted across breach forums and dark-web markets for years. That’s why your information from the Master Deeds breach can still be abused long after the original incident — and why checking your exposure and locking down your accounts matters even now.

What data was exposed in the Master Deeds breach?

The Master Deeds breach exposed dates of birth, deceased statuses, email addresses, employers, ethnicities, genders, government issued ids, home ownership statuses, job titles, names, nationalities and phone numbers and more. The more of these are tied to you, the more ways an attacker can impersonate you or break into your other accounts.

Dates of birthDeceased statusesEmail addressesEmployersEthnicitiesGendersGovernment issued IDsHome ownership statusesJob titlesNamesNationalitiesPhone numbersPhysical addresses

How the leaked Master Deeds data can be used against you

Because the Master Deeds breach exposed dates of birth, deceased statuses, email addresses, employers, ethnicities and genders and more, your email address becomes a target for convincing phishing, often referencing this very breach to look legitimate; your phone number fuels scam calls and smishing (fraudulent texts); and your address can be used to locate you, sold on to people-search sites, or used in doxxing.

How to check if you were affected

The leaked records themselves aren’t published openly, so the way to know is to check your email against known breach and dark-web databases. Our free tool does exactly that in a few seconds — no account needed.

Check my email against known breaches — free →

What to do if your Master Deeds account was breached

These steps are prioritized for exactly the kind of data the Master Deeds breach exposed.

1
Turn on two-factor authentication

Add 2FA — ideally an authenticator app or a passkey rather than SMS — to your email, banking and other important accounts, so a stolen password alone can’t get in.

2
Expect spam calls and scam texts

Leaked numbers feed robocalls and smishing. Never act on an unsolicited call or text, enable your carrier’s spam filter, and remove your number from data-broker sites that resell it.

3
Limit your address exposure

Exposed addresses spread to people-search sites that anyone can look up. Opting out of data brokers makes your home harder to find and lowers your doxxing risk.

4
Watch for targeted phishing

Scammers reference real breaches to sound credible, so treat any email mentioning Master Deeds with suspicion, and never use a password-reset link you didn’t request — go to the site directly instead.

5
Monitor whether your data resurfaces

Leaked data is resold for years, so a one-time clean-up isn’t enough. Ongoing breach and dark-web monitoring tells you the moment your details reappear, so you can act before an account is misused.

Common questions

The Master Deeds breach, answered

Was my email in the Master Deeds breach?

You can find out in seconds with our free breach and dark-web check — enter your email and it tells you whether it appears in the Master Deeds breach and other known incidents.

When did the Master Deeds breach happen?

The Master Deeds data breach is dated March 2017 and exposed roughly 2 million accounts. Note that breached data often surfaces and is resold long after the original date.

What data was exposed in the Master Deeds breach?

The exposed records included dates of birth, deceased statuses, email addresses, employers, ethnicities and genders and more. Around 2 million accounts were affected.

What should I do after the Master Deeds breach?

Change your Master Deeds password and any reused passwords, turn on two-factor authentication, watch for phishing that references Master Deeds, and monitor whether your details resurface on the dark web.

Was your email in the Master Deeds breach?

Check free in about a minute — then we’ll help you remove your exposed data and keep it monitored.

Run my free breach check →