Personal Data Leak Monitor

MC2 Data data breach

2.12M accounts from MC2 Data were exposed in this breach. Besides email addresses, it included passwords, which makes it a high-risk breach.

Breach date
August 18, 2024
Accounts
2,122,280
Added to the database
December 15, 2024

Was your email address in this breach?

Check if your email has leaked

We display where your address leaked and what went with it. We never store the address.

We don't store your address. It is checked right here against about 1029 breaches, including this one.

What leaked

Email addressesNamesPasswords

What to do now

  1. Please change that password, and anywhere you reused it
  2. Do not tap links in emails claiming to be that service
  3. Expect scam emails that use your real name

Tools that help with this breach

1PasswordPaidVisit the official site →(opens in a new tab)YubiKeyPaidVisit the official site →(opens in a new tab)

About this breach

In August 2024, data aggregator MC2 Data left a database publicly accessible without a password which was subsequently discovered by a security researcher. The breach exposed the personal information of 2.1M subscribers to the service which was marketed under a series of different brand names. The data included email addresses, names and salted SHA-256 password hashes.

Source: Have I Been Pwned (CC BY 4.0)

Similar breaches from the same period