Epik Data Breach
Status: Confirmed
Breach Intelligence Summary
Entity: Epik · Actor: Unknown · Source: DataBreach.com / ObscureIQ intelligence
Attack: Credential Compromise via Compromised credentials
Timeline: Breach (Sep, 2021) · Reported (Sep, 2021) · Leak (8/20/25)
Exposure: 15.0M+ records · Email, Home Address, Name, Names, Phone Number, Phone numbers, Physical addresses, Purchases
Status: Confirmed · Risk: Moderate (Phishing / SIM swap)
Summary
In September 2021 domain registrar and hosting company Epik was hacked by actors aligned with Anonymous who exfiltrated and published roughly 180GB of internal data described as a decade’s worth of records. The cache included domain purchases and transfers account credentials payment histories and internal mailboxes; later dumps even contained bootable disk images of Epik servers. Notably the breach swept in millions of people who weren’t Epik customers at all because the company had stored large troves of scraped WHOIS records turning otherwise “public” contact details into a sensitive centralized dataset. ([TechCrunch][1] [The Register][2] [Ars Technica][3]) Epik’s early public stance shifted from saying it was unaware of a breach to acknowledging an “incident ” and then confirming exposure of customer data. Reporting and analyses at the time pointed to troubling security practices: weakly protected passwords and more alarmingly payment data risks. Materials reviewed by a major newspaper described full credit card numbers and unencrypted passwords in the leaked data and industry coverage raised concerns that CVV codes-the three- or four-digit security numbers that should never be stored-were present an egregious violation of PCI norms if accurate. ([SecurityWeek][4] [The Washington Post][5] [Domain Name Wire][6]) The fallout extended beyond routine credential-theft risk. Because Epik has long catered to deplatformed or fringe communities researchers used the dataset to map relationships among websites operators and organizers that had previously been obscured calling the leak a Rosetta Stone for understanding that ecosystem. Follow-on releases of server images amplified that visibility by exposing configuration details and internal content at scale. ([The Washington Post][5] [The Register][2]) If your details ever ran through Epik-or appeared in WHOIS that Epik cached-take standard precautions: change any reused passwords enable two-factor authentication and review saved payment methods and statements for unfamiliar charges. Consider privacy-protecting domain services and limiting the spread of physical addresses and phone numbers in registration records going forward. For organizations the incident is a reminder that aggregating “public” data creates new risk. Inventory secondary data stores (like cached WHOIS) apply least-privilege access and encryption at rest and enforce deletion schedules. Treat public feeds as sensitive once centralized: when a single provider hoards them a breach can turn open records into a massive doxing and fraud vector. ([Ars Technica][3]) , [1]: https://techcrunch.com/2021/09/17/epik-website-bug-hacked/?utm_source=chatgpt.com “Web host Epik was warned of a critical security flaw weeks …” , [2]: https://www.theregister.com/2021/09/30/anonymous_second_epik_dump/?utm_source=chatgpt.com “‘Anonymous’ reportedly leaks more stolen Epik data” , [3]: https://arstechnica.com/information-technology/2021/09/epik-data-breach-impacts-15-million-users-including-non-customers/?utm_source=chatgpt.com “Epik data breach impacts 15 million users including non- … [4]: https://www.securityweek.com/controversial-web-host-epik-confirms-customer-data-exposed-breach/?utm_source=chatgpt.com “Controversial Web Host Epik Confirms Customer Data …” , [5]: https://www.washingtonpost.com/technology/2021/09/25/epik-hack-fallout/?utm_source=chatgpt.com “Epik hack by Anonymous reveals hidden far-right data” , [6]: https://domainnamewire.com/2021/09/20/epik-breach-credit-card-woes-whois-data/?utm_source=chatgpt.com “Epik breach: credit card woes, Whois data”
About Epik
Epik 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 Epik 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.
- Compromised credentials
Breach Exploitation Status
Moderate
Status
Detected
Possible
Possible
Unknown
Unknown
3–5 years
Phone numbers and addresses change over time but remain valid long enough for sustained exploitation campaigns.
Data Points Exposed
Dark Web Verification
Status: Confirmed
- Dataset containing approximately 15.0M+ records has been identified in breach intelligence sources.
- The data is indexed and searchable across breach notification platforms.
Impact
This breach carries moderate risk due to the nature of exposed data fields and the scale of affected records.
- Targeted phishing referencing Epik accounts or services
- SIM-swap attempts where phone numbers are present
- Physical mail scams and address-based identity verification fraud
- 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.
Epik account updates
Password reset requests
Verify directly through official channels.
Email compromise is often the first pivot point.
Frequently Asked Questions
In Sep, 2021, Epik experienced a data breach that resulted in the exposure of approximately 15.0M+ records containing personal information.
The exposed data includes Email, Home Address, Name, Names, Phone Number, Phone numbers, Physical addresses, Purchases.
Approximately 15.0M+ 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 detected across breach-sharing channels. Downstream exploitation risk exists based on the nature of the exposed fields.
Rotate passwords associated with Epik, enable multi-factor authentication on email and financial accounts, and monitor for suspicious activity.
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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 Epik
- Or simply concerned about credential reuse
We can confirm whether your information is circulating and evaluate downstream threat vectors.