The LulzSecAsia Stealer Log Exposed 5,853 API and Email Credentials

HEROIC analysts identified a stealer log file named "LulzSecAsia" uploaded to a Telegram channel on July 28, 2026. The log contains 5,853 records combining email addresses, plaintext passwords, and URLs, including entries tied to API endpoints, information that points to developer or IT accounts caught up in the infection. Why This Is Dangerous: This data was pulled directly from infected devices by infostealer malware, which means the passwords are working, current logins rather than old or already-changed ones. Because API credentials are mixed in with regular email and password pairs, an attacker could potentially reach backend systems or connected services, not just personal accounts. What Was Exposed: - Email addresses - Plaintext passwords - URLs, including API endpoints Why This Matters: If a developer or IT professional's machine was infected, the stolen credentials could grant access well beyond a single website, potentially reaching internal tools, cloud services, or customer data. For anyone in this log, reused passwords also raise the risk of account takeover, identity theft, and financial fraud on personal accounts like email and banking. How a Stealer Log Like This Works: Infostealer malware infects a device through a malicious download, cracked software, or a phishing link, then silently harvests saved passwords, browser sessions, and autofill data, including credentials used to access APIs and developer tools. Everything is bundled by infected device and sold or shared on Telegram channels, often under a branded name like "LulzSecAsia" to make the file stand out to buyers. Check If You Are Affected: HEROIC's free breach scanner checks your email against a database of more than 400 billion leaked records, including stealer logs like this one, so you can find out in seconds if your credentials were exposed.