Impact & Downstream Threats
This breach carries critical risk due to the nature of exposed data fields and the scale of affected records.
- Credential stuffing against reused passwords across other platforms
- Identity verification bypass using name + date of birth combination
- Targeted phishing campaigns using exposed email addresses
Breach Intelligence
Executive Summary
In July 2018, the social bookmarking and sharing service ShareThis suffered a data breach. The incident exposed 41 million unique email addresses alongside names and in some cases, dates of birth and password hashes. In 2019, the data appeared listed for sale on a dark web marketplace (along with several other large breaches) and subsequently began circulating more broadly. The data was provided to HIBP by dehashed.com.
About ShareThis
Data and content sharing tools provider.
Data Points Exposed
Dark Web Verification
Status: Confirmed
- Dataset containing approximately 41.0M 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.
Non-clients may request a breach impact review.
Frequently Asked Questions
In July 2018, ShareThis experienced a data breach that exposed approximately 41.0M records containing personal information.
The exposed data includes fields such as date of birth, email address, full name, password.
Approximately 41.0M records were affected based on current breach intelligence.
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ObscureIQ Advisory
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- A public-facing individual
- A high-profile executive
- A customer of ShareThis
- Or concerned about credential reuse
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