Brinztech Alert: The Alleged Database of Celsius is Leaked

Dark Web News Analysis

The dark web news reports a significant data breach involving Celsius Network, the cryptocurrency lending platform currently undergoing bankruptcy proceedings. A threat actor on a hacker forum has posted a database allegedly originating from a compromise of Celsius’s third-party email vendor, Mailchimp.

The leak highlights the persistent vulnerability of the cryptocurrency supply chain. While the core Celsius platform is defunct/restructuring, its marketing and communication databases remain valuable targets. The compromised data likely includes Email Addresses, Names, and Phone Numbers of former customers and current creditors waiting for asset distribution.

Key Cybersecurity Insights

Breaches of bankrupt or distressed companies are particularly dangerous because the victims are already anxious and expecting communication regarding their funds:

• “Zombie” Phishing & Claims Scams: The primary threat here is Distress-Based Phishing. Creditors are desperate for news about their frozen assets. Attackers will use the leaked emails to send official-looking messages: “Celsius Distribution Update: You are eligible to withdraw 30% of your claim. Connect your wallet here.” These scams are incredibly effective because the victims are actively waiting for such an email.
• Supply Chain Dependency: This incident underscores the risk of Third-Party Vendors (Mailchimp). Even if a company secures its own infrastructure, a breach at a marketing vendor can expose the entire user base.
• Sim Swapping: If the leak includes Phone Numbers, high-value targets (identified by cross-referencing with other crypto leaks) are at risk of SIM swapping attacks, where attackers hijack the phone number to bypass 2FA on other exchanges.
• Data Permanence: Even after a company collapses, its user data lives on. This “ghost data” often has lower security oversight during bankruptcy transitions, making it an easy target for aggregators.

Mitigation Strategies

To protect your remaining assets and identity, the following strategies are recommended:

• Verify Claims Sources: Never click on links in emails claiming to be from Celsius or the claims agent (Stretto) that ask for wallet connections or private keys. Official bankruptcy communications are purely informational and will usually direct you to the official docket website.
• Use Dedicated Email Aliases: If possible, retire the email address used for Celsius. It is now “burned” and will likely be targeted by crypto scams for years.
• Wallet Isolation: Do not use your primary “cold storage” wallet to interact with any claims portal. If a distribution eventually happens, generate a fresh, clean address for it.
• Vendor Awareness: Be aware that “Celsius” support does not exist in the traditional sense. Any “Support Agent” contacting you via Telegram, WhatsApp, or email is 100% a scammer.

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Questions or Feedback?

For expert advice, use our ‘Ask an Analyst’ feature. Brinztech does not warrant the validity of external claims. For general inquiries or to report this post, please email us: contact@brinztech.com