HIGH SEVERITYSocial

Yandex Dump Data Breach

Verified by ObscureIQ Intelligence

7.0Severity
1.2MRecords
2Data Fields
2014Year

Impact & Downstream Threats

This breach carries high risk due to the nature of exposed data fields and the scale of affected records.

Primary downstream threats:
  • Credential stuffing against reused passwords across other platforms
  • Targeted phishing campaigns using exposed email addresses

Breach Intelligence

EntityYandex Dump
Breach DateSeptember 2014
DisclosureSeptember 2014
Records Exposed~1.2M
Attack VectorSocial Engineering
SourceHave I Been Pwned / ObscureIQ intelligence
StatusConfirmed

Executive Summary

In September 2014, news broke of a massive leak of accounts from Yandex, the Russian search engine giants who also provides email services. The purported million "breached" accounts were disclosed at the same time as nearly 5M mail.ru accounts with both companies claiming the credentials were acquired via phishing scams rather than being obtained as a result of direct attacks against their services.

About Yandex Dump

Yandex Dump is an organization whose data was exposed in this breach. The dataset has been verified by ObscureIQ intelligence and indexed across breach notification platforms.

Data Points Exposed

Verified fields in the released dataset:
Email addresses
Passwords

Dark Web Verification

Status: Confirmed

  • Dataset containing approximately 1.2M records identified in breach intelligence sources.
  • The data is indexed and searchable across breach notification platforms.

Recommended Actions

⚠️ Do not assume this is low sensitivity.

Change Passwords
Change your Yandex Dump password immediately and any account sharing similar credentials.
Expect Targeted Phishing
Watch for emails referencing this breach. Verify communications through official channels.
Secure Email & Enable MFA
Email compromise is often the first pivot point. Enable multi-factor authentication.
Monitor Financial Accounts
Watch for unauthorized credit applications and suspicious activity.
Check Your Exposure
ObscureIQ clients: this breach is indexed in your profile.
Non-clients may request a breach impact review.

Frequently Asked Questions

What happened in the Yandex Dump data breach?

In September 2014, Yandex Dump experienced a data breach that exposed approximately 1.2M records containing personal information.

What data was exposed?

The exposed data includes fields such as email address, password.

How many records were affected?

Approximately 1.2M records were affected based on current breach intelligence.

Protect Yourself

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ObscureIQ Advisory

We combine proprietary dark web access with commercial and restricted breach intelligence to verify exposure and assess real-world risk.

If you are:
  • A public-facing individual
  • A high-profile executive
  • A customer of Yandex Dump
  • Or concerned about credential reuse
Services
AuditsWipesThreat MonitoringTraining

Classification Tags

Social EngineeringSocialEmailPasswords

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