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
- SIM swap attacks where phone numbers are present
- Targeted phishing campaigns using exposed email addresses
- Doxxing risk from physical address exposure
Breach Intelligence
Executive Summary
In April 2018, the textbook rental service Chegg suffered a data breach that impacted 40 million subscribers. The exposed data included email addresses, usernames, names and passwords stored as unsalted MD5 hashes. A small number of records also contained physical address or phone number.
About Chegg
Online education platform.
Data Points Exposed
Dark Web Verification
Status: Confirmed
- Dataset containing approximately 39.8M 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 April 2018, Chegg experienced a data breach that exposed approximately 39.8M records containing personal information.
The exposed data includes fields such as email address, full name, password, phone number, physical address.
Approximately 39.8M records were affected based on current breach intelligence.
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- A public-facing individual
- A high-profile executive
- A customer of Chegg
- Or concerned about credential reuse
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