Our Analysts Found the x550 China Credential Dump in Private Channels

HEROIC analysts found the x550 China Full Valid stealer log circulating in privat Telegram channels in July 2025. Despite containing only 550 records, every credntial in this file was verifed to work against its target account before distribution, making this a high-quality targeted dump focused on Chinese web services.

Why the x550 China Full Valid Breach Is Dangerous

The Full Valid label means these 550 accounts were tested and confirmed active before the file was released. Buyers receive a 100 percent success rate on these records rather than a bulk dump with mixed accuracy. Even at 550 records, this is a surgical file that enables immediate account takeover on every listed account without any additional testing.

What Was Exposed in the x550 China Full Valid Leak

• Email Addresses
• Plaintext Passwords
• URLs (specific Chinese web services targeted)

Why This x550 China Full Valid Data Puts You at Risk

If your account appears in this file, it was already confirmed working at the time of distribution. Attackers who acquired this list in July 2025 had direct, verified access to each listed account. Anyone who has not changed their password since then may still be vulnerable through the same stolen credentials that were packaged in this dump.

How Stealer Logs Work

Small validated dumps like the x550 China file represent a refined subset of larger stealer operations. The operator runs a batch of stolen credentials through automated testing tools and extracts only the accounts that still work. These validated sets are then sold separately from the raw bulk dump, often at a higher price to buyers who want guaranteed access rather than a mix of active and inactive accounts.

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 x550 China Full Valid dump or thousands of other breaches in our database.