The DAISYCLOUD Dump Put Passwords for 247,151 Users on Dark Web

HEROIC found the UP_DAISYCLOUD-CHAMPIONING breach on June 18, 2025. The incident exposed 247,151 records containing email addresses, plaintext passwords, and URLs harvested by infostealer malware from compromised endpoints and published to Telegram.

Why the UP_DAISYCLOUD-CHAMPIONING Breach Is Dangerous

At 247,151 records, this stealer log supplies attackers with a large volume of ready-to-use credentials for an extensive automated campaign. With plaintext passwords in hand, threat actors can begin testing credentials against email services, financial platforms, and corporate remote-access portals immediately, without any decryption work required.

What Was Exposed in the UP_DAISYCLOUD-CHAMPIONING Leak

• Email addresses
• Plaintext passwords
• URLs

Why This UP_DAISYCLOUD-CHAMPIONING Data Puts You at Risk

Credential stuffing tools test stolen email and password pairs across hundreds of services in parallel. When a match is confirmed, attackers can lock you out of your account, drain linked payment methods, or use your email inbox to intercept two-factor authentication codes from other services. With 247,151 exposed records, the probability that working credentials are already being tested is high.

How Stealer Log Breaches Work

Stealer log malware, also called infostealers, are installed on a victim's device through phishing emails, malicious downloads, or compromised software. Once active, the malware silently harvests saved browser credentials, session cookies, and form-fill data, then uploads the collected records to an attacker-controlled server. The assembled logs are then packaged and published on dark web forums and messaging platforms like Telegram.

Check If Your Data Was Exposed

HEROIC operates one of the world's largest breach databases, covering more than 400 billion leaked records. Use HEROIC's free breach scanner to check if your email address or credentials appeared in the UP_DAISYCLOUD-CHAMPIONING leak or thousands of other breaches in our database.