Adpost Data Breach (2025)
If you are a customer of Adpost, here’s what’s now in circulation.
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.
Assessing Adpost as a vendor?
Check your own domain — free, no cardEnter a work email. We count the addresses at that domain sitting in the leaked-data corpus, and how many arrived with a password.
Were you personally caught up in this? Run a free 15-second personal scan.
On February 14, 2025, a dataset containing records for 3.3 million Adpost users appeared in public forums. The exposed information includes email addresses, usernames, and display names tied to the classifieds platform. Anyone who created an account on Adpost is potentially affected, along with family members whose contact details were linked to those accounts.
What's Publicly Reported from Reporting
Public reporting from Have I Been Pwned confirms the breach surfaced in February 2025. The dataset stems from an earlier intrusion that Adpost later attributed to compromised credentials. In its disclosure notice, the company stated it had forced a credential refresh for impacted accounts and taken additional security steps. The records contain email addresses, usernames, and display names but do not appear to include passwords or financial data according to available reporting.
Advertisement
BATECH StudioWe build it.We run it.Web apps, AI pipelines and internal tools — under your brand, not ours.Tell us what you need →
BATECH Studio and GalaxyWarden share common ownership.
Why This Matters for You and Your Family
A breach of this scale means your email address and username are now easily searchable by anyone with basic technical skills. Once those details are out, they can be combined with information from other leaks to build a profile of you and your household. Children who used family email addresses for accounts may also find their usernames exposed, increasing risks of harassment or unwanted contact. The incident shows how even platforms used for everyday buying and selling can put personal identifiers into circulation.
The Doxxing and Identity-Chain Implications
Usernames and display names often stay consistent across gaming platforms, social media, and forums. A single leaked username can serve as the starting point for attackers to link your online handles to your real identity. This creates an identity chain that leads to doxxing, where private details such as home addresses or phone numbers are published. Credential leaks like this one frequently cascade into account takeovers on other services where the same email and password combination was reused. Gaming accounts belonging to you or your children are particularly vulnerable because they often share the same email domain and can be hijacked to harass or extort.
What to Do
- Rotate the password used on Adpost anywhere it is reused and switch to 2FA through an authenticator app rather than SMS.
- Run a DoxxScan to map every link between your handles, emails, phone numbers, and real identity, with cleanup included.
- Enable continuous DoxxScan monitoring across 13.1B+ breach records and 100+ platforms so the next exposure is caught in hours, not months.
- Cover the household with DoxxScan family coverage that extends to dependents and children's gaming accounts that chain back to the same address.
- Let remediation specialists handle takedown requests across data brokers and exposed profiles on your behalf.
The Adpost incident is a reminder that data once leaked stays leaked. Taking deliberate steps now limits how far attackers can travel down the identity chain. DoxxScan by GalaxyWarden delivers continuous monitoring across 13.1 billion+ breach records and more than 100 platforms, AI-powered identity-chain mapping, hands-on remediation by specialists, and full household coverage that includes children's gaming accounts. Start your DoxxScan trial today to regain control over what surfaces about you and your family.
What the free scan actually returns
Found on people-search siteswe remove these
These listings are live, public, and legal to remove — and removing them is what we do.
Found in breach recordsverifiedreported — unverified
Each record is labeled: confirmed breach data, or an attacker’s claim no one has verified.
Leaked data cannot be deleted from the internet — anyone claiming otherwise is lying. Broker listings can be removed. We do the second, and show you exactly what to fix from the first.
For security and vendor-risk teams: a staff address in a leak does not mean you were breached — it usually means a third party was. We monitor a domain against 13.1B+ leaked records and tell you when one of your people appears. See what we would check →
Report details & sourcing
Related breaches
Navia Benefits Administration Breach — March 2026
2.7 million individuals had names, SSNs, DOBs, contact information, and benefits administration data…
Trailer Transit Inc Listed by metaencryptor Ransomware Group
Nationwide power-only transport services with 40+ years of experience. Trust Trailer Transit for dep…
Harvard University Alumni & Donor Data Breach — November 2025
ShinyHunters (Scattered Lapsus$ Hunters) dumped ~115,000 sensitive records from Harvard's Alumni Aff…