OpenSea.io Data Breach
Status: Confirmed
Breach Intelligence Summary
Entity: OpenSea.io · Actor: Unknown · Source: DataBreach.com / ObscureIQ intelligence
Attack: Phishing via Phishing
Timeline: Breach (Jun, 2022) · Reported (Mar, 2025) · Leak (Mar, 2025)
Exposure: 6.9M+ records · Email
Status: Confirmed · Risk: Low (Credential reuse / phishing)
Summary
In June 2022 OpenSea a leading NFT marketplace experienced a significant data breach involving the unauthorized exposure of user email addresses. The incident occurred when an employee of Customer.io OpenSea’s email vendor misused their access to download and share these email addresses with an external party. OpenSea promptly notified its users advising them to remain vigilant against potential phishing attempts resulting from the breach. The company collaborated with Customer.io and law enforcement agencies to investigate the matter. Customer.io confirmed the involvement of a senior engineer in the unauthorized data sharing terminated the employee and implemented enhanced security measures to prevent future incidents.
About OpenSea.io
OpenSea.io is the organization affected by this breach. User data may have been generated through account creation, service usage, or business operations.
If you have interacted with OpenSea.io in any capacity, your data may be included in this breach.
Threat Actor: Unknown
The threat actor responsible for this breach has not been publicly identified or confirmed at this time.
- Phishing
Breach Exploitation Status
Low
Status
Unknown
Unknown
Unknown
Unknown
Unknown
1–3 years
Email addresses and usernames persist but credentials may rotate. Phishing risk remains elevated during this window.
Data Points Exposed
Dark Web Verification
Status: Confirmed
- Dataset containing approximately 6.9M+ records has been identified in breach intelligence sources.
- The data is indexed and searchable across breach notification platforms.
Impact
This breach carries low risk due to the nature of exposed data fields and the scale of affected records.
- Targeted phishing referencing OpenSea.io accounts or services
- Data broker enrichment and resale
Recommendations for Impacted Individuals
If you believe your information may be included:
Non-clients may request a breach impact review.
OpenSea.io account updates
Password reset requests
Verify directly through official channels.
Email compromise is often the first pivot point.
Frequently Asked Questions
In Jun, 2022, OpenSea.io experienced a data breach that resulted in the exposure of approximately 6.9M+ records containing personal information.
The exposed data includes Email.
Approximately 6.9M+ records were affected based on current breach intelligence.
Yes. This breach is treated as confirmed based on data observed in breach intelligence platforms.
Data circulation has been reported across breach-sharing channels. Downstream exploitation risk exists based on the nature of the exposed fields.
Rotate passwords associated with OpenSea.io, enable multi-factor authentication on email and financial accounts, and monitor for suspicious activity.
Protect Yourself
Check If You’re Affected
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High-Risk? Get an Exposure Audit
Executives, public figures, and high-net-worth individuals face elevated risk. Our team provides full-spectrum exposure audits and threat monitoring.
Corporate Accountability
Organizations that collect personal data have a duty to implement reasonable safeguards and to notify affected individuals when breaches occur.
Scope assessments may evolve as investigations continue. Users should not rely solely on early estimates when making risk decisions.
ObscureIQ Advisory
We combine proprietary dark web access with commercial and restricted breach intelligence to verify exposure and assess real-world risk.
- A public-facing individual
- A high-profile executive
- A customer of OpenSea.io
- Or simply concerned about credential reuse
We can confirm whether your information is circulating and evaluate downstream threat vectors.