13,066 Fire Cloud Accounts Compromised: Plaintext Leak

On October 17, 2023, a Telegram user uploaded a stealer log file under the name Fire Cloud Free 3, making it freely available to anyone monitorng public threat channels. The file contained 13,066 records harvested from compromised endpoints belonging to users in the United States. Each record included an email address, a plaintext password, and one or more URLs identifying the services the victims were actively using at the time of infection. The log was part of a broader wave of stealer data distributed through Telegram channels during October 2023, reflecting a sustained campain of infostealer malware activity targeting US-based users.

Why This Is Dangerous

Stealer logs distributed for free on Telegram are designed to be used immediately. Criminals who download the Fire Cloud Free 3 file have direct access to working email addresses paired with plaintext passwords and the exact URLs of the services those victims use. There is no technical barrier to entry. They do not need to crack hashes, run brute-force tools, or guess which services to target. The data does the work for them. The US-based nature of these records makes them particularly atractve because they often include credentials for high-value platforms such as US banking apps, payroll services, healthcare portals, and corporate remote access tools. A single downloaded file can fuel hundreds of targeted account takeover attempts within hours.

What Was Exposed in the Fire Cloud Free 3 Stealer Log

• Email addresses
• Plaintext passwords
• URLs (active service and login endpoints)
• Endpoint and API host identifiers

Why This Matters

For the 13,066 people in this log, the risk does not end when the initial Telegram post is taken down. Stealer log data circulates for months and years through resale markets, dark web forums, and secondary Telegram channels. Each time the data changes hands, a new attacker has the opportunity to test those credentials. US users are frequently targeted in follow-on fraud schemes because of the concentration of financial and personal services tied to a single email address. The exposure of plaintext passwords in particular means that any account where the same password was reused is immediatley vulnerable -- not just the original compromised service, but every account the victim has ever created with that password.

How Stealer Logs Work

A stealer log is the output of infostealer malware, a category of malicious software that silently collects credentials from an infected device. The infection usually begins with a social engineering attack: a fake software crack, a phishing email, or a malicious file disguised as something useful. Once the malware is running, it harvests saved passwords from browsers, captures keystrokes at login screens, and sweeps active session cookies. This data is compiled into a structured log and transmitted to a server the attacker controls. The device continues to function normally, and the victim has no indication anything has gone wrong. The attacker then packages logs from multiple victims into a single file -- like Fire Cloud Free 3 -- and uploads it to Telegram for free distribution. This model of free sharing is common among lower-tier cybercriminals who use log dumps to build reputation and attract attention to paid services. The logs are then downloaded, tested, and reused by multiple actors over an extended period, which is why a breach that occured in 2023 can still result in account takeovers in 2025 and beyond.

Check If You Are Affected

If you are a US-based user who had any online accounts active before October 2023, your credentials could appear in this log or others like it from the same distribution period. HEROIC's free breach scanner checks your email address against over 400 billion compromised records, including stealer logs distributed on Telegram channels. Visit HEROIC.com to run a free scan in under a minute and find out if your data from Fire Cloud Free 3 or any other breach is already in the hands of attackers.