OceanCloud ULP Part 3: 4.3M Credentials Exposed

In February 2026, part 3 of the OceanCloud stealer logs released 4,340,921 email-password-URL combinations. This represents one of the largest individual credential datasets ever documented, and the existence of "Part 3" suggests over 12 million credentials from this operation have been disclosed across multiple installments.

Why This is Dangerous

A breach of 4.3 million credentials is beyond the scale of traditional cybercrime. This suggests state-sponsored or highly organized criminal infrastructure harvesting credentials at an unprecedented rate. The sheer volume means statistically, many users reading this are included in this dataset.

What Was Exposed

• Email Addresses (4,340,921 records)
• Plaintext Passwords
• URLs, APIs, and System Configuration Data

Why This Matters

4.3 million compromised credentials represent a critical threat to global cybersecurity infrastructure. This dataset will drive attacks for years, serving as the foundation for targeted phishing, ransomware distribution, and credential-stuffing campaigns. The geographic diversity suggests this hit every continent.

How OceanCloud Stealer Operates

OceanCloud malware spreads via supply chain compromises and drive-by downloads. Once installed, it persistently harvests credentials, browser data, and system information. The malware uses sophisticated evasion to hide from antivirus tools, remaining undetected on victim machines for extended periods.

Check If Affected

With 4.3 million records, the probability you're included is extremely high. Search this dataset immediately and assume complete credential compromise if found. Change all passwords starting with your email account, then work through every other online account. Consider professional identity theft monitoring.