Hosting & Infrastructure / Hosting
A hosting provider.
The Breach Risk Index (BRI) is a proprietary 0–100 score rating how dangerous a breach is right now, based on how recently the data has been circulating on the dark web and how valuable it is to attackers.
In May 2025, hosting provider ColoCrossing identified a data breach that impacted customers of their ColoCloud virtual server product. ColoCrossing advised the incident was isolated to their cloud/VPS platform and stemmed from a single sign-on vulnerability. 7k email addresses were exposed in the incident along with names and MD5-Crypt password hashes.
Full threat analysis, exploitation vectors, and principal guidance below.
10 additional sections · verified field analysis · defensive doctrine
7K records analyzed
ColoCrossing is a hosting provider.
ColoCrossing is a hosting provider. Services like this typically hold email addresses, names, passwords through account registration and normal operations.
The ColoCrossing dataset circulated publicly; treat as part of the standing exposure landscape.
The exposure of credentials alongside personal data heightened account-takeover and reuse risk for ColoCrossing users and drew scrutiny of its data protection.
• Credential stuffing against reused passwords across other platforms | • Targeted phishing campaigns using exposed email addresses
A consumer-service breach: contact and account data supports phishing, account takeover and profile enrichment. For a high-profile principal the main risk is credible impersonation and enrichment of existing exposure.
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