Personal Data Leak Monitor

Adpost data breach

3.34M accounts from Adpost (adpost.com) were exposed in this breach. Besides email addresses, it included names and usernames.

Breach date
February 14, 2025
Accounts
3,339,512
Added to the database
October 7, 2025

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What leaked

Email addressesNamesUsernames

What to do now

  1. Do not tap links in emails claiming to be that service
  2. Expect scam emails that use your real name
  3. Verify you have not reused that login anywhere

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 February 2025, data obtained from an earlier Adpost breach surfaced. The dataset contained 3.3M records including email addresses, usernames, and display names. Adpost later published a disclosure notice and advised they'd forced a credential refresh, among other actions.

Source: Have I Been Pwned (CC BY 4.0)

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