How the Cloud_Rolex Stealer Log Led to 10,167 Stolen Credentials

HEROIC analysts found the Cloud_Rolex stealer log on May 20, 2025, after an anonymous user posted it to a public Telegram channel. The dump contained 10,167 records harvested from compromised endpoints, each pairing an email address with a plaintext password and an associated URL. The data types and structure point clearly to infostealer malware as the collection method, meaning real people's machines were infected and their credentials were silently copied without their knowledge.

Why This Is Dangerous

Plaintext passwords require zero effort from an attacker. There is no encryption to crack and no hash to reverse. Anyone who downloaded this Telegram post got a ready-to-use list of working login credentials. The URLs in the dump act as a targeting guide, showing attackers precisely which cloud services and accounts each email address was tied to. That combination makes mass account takeover straightforward and fast.

What Was Exposed

• Email Addresses
• Plaintext Passwords
• API Host URLs

Why This Matters

When credentials like these hit Telegram, credential stuffing bots pick them up almost imediately. These automated tools test each username and password pair against banking sites, email providers, social media, and cloud services all at once. Successful logins lead to account takeover, unauthorized financial transactions, and in some cases full identity theft. Even if you only reuse a password on one other site, that single overlap is enough for an attacker to get in. The risk does not disappear after the initial dump either, since stolen logs continue to circulate in underground markets for months or years.

How the Cloud_Rolex Stealer Log Breach Happened

The Cloud_Rolex log was produced by infostealer malware running on infected endpoint devices. Infostealers spread through several common routes including pirated software installers, fake browser extensions, phishing emails, and malvertising on legitimate websites. Once a device is infected, the malware combs through saved browser passwords, authentication tokens, and cookies, then exports everything into a structured log file. That log was eventully uploaded to Telegram, where it became accessible to anyone following the channel. The victims likely had no warning that anything was wrong on their devices at the time the data was collected.

Check If You Are Affected

Your email address may have been part of the Cloud_Rolex dump alongside your plaintext password. HEROIC's free scanner checks your email against more than 400 billion exposed records, including this Telegram stealer log. Visit heroic.com now to run a free search, see what was exposed, and get guidance on securing your accounts before someone else takes advantage of the leak.