A

Confirmed breach

Adpost data breach

Country being checked · adpost.com

A breach of Adpost was added to Have I Been Pwned’s breach database on 7 October 2025. It affected 3,339,512 accounts. Exposed: Email addresses, Names and Usernames. The breach began on 14 February 2025, 235 days before it was reported.

Status

Confirmed breach

People affected

3,339,512 accounts

Reported

7 October 2025

Breach began

14 February 2025

Time to tell

235 days (the median in California’s notices over the last year: 154 days)

What was exposed

• Email addresses
• Names
• Usernames

Sources

• Breach database · 7 October 2025 · 3,339,512 accountsHave I Been Pwned

Breach databases are read by code. · Corrections and changes

If Adpost had your data

1. Look for Adpost’s own notice or letter: it should say what of yours was involved. Keep it.
2. Expect scams that use your details: calls, texts or emails pretending to be Adpost, your bank or the police. Never give codes or passwords, never approve a sign-in you did not start, never move money.

• Spot the scams that use leaked data →
• What to do after a data breach →

Email me if Adpost has another breach

Alert me

One email to confirm first. We use your address only for this alert, and one click deletes it.

From the data breach tracker: official notices, breach databases and the news, every fact with its source. Open data (CC BY 4.0) · How the tracker works · Official registers · Corrections and changes · Found a mistake? Tell us and we correct it.