The Compuserve.de Log: 17,628 Stolen Credentials Hit the Dark Web

HEROIC analysts identified this stealer log on 10-Jun-2026. The breach exposed 17,628 records, with stolen data including email addresses, plaintext passwords, and URLs. The source is identified as compuserve.de, the German domain of CompuServe, an early internet service provider.

Why This Is Dangerous

With nearly eighteen thousand plaintext passwords exposed alongside email addresses and site URLs, attackers have a large pool of credentials to test across popular services. Many people who held CompuServe accounts used those same email addresses and passwords on other platforms. Any reused password represents a direct path to account takeover on banking, shopping, or social media sites.

What Was Exposed

• Email Addresses
• Plaintext Passwords
• URLs (the specific websites where credentials were active)

Why This Matters

The scale of this exposure makes it statistically likely that a large number of the affected individuals are also using these same credentials on other active accounts. Attackers run automated tools that test stolen credential pairs against hundreds of websites simultaneously, a technique called credential stuffing. The URL data in this log makes the attacks even more targeted and efficient.

How Stealer Logs Work

Stealer malware installs itself without the user's knowledge, usually through a deceptive download or a malicious email attachment. Once running, it harvests all saved passwords from the browser, along with the web addresses they correspond to, and sends the data to the attacker. The attacker compiles this into a log file and distributes it through private Telegram channels where other criminals can access it.

Check If You Are Affected

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