Researchers Trace the Alaska Cloud 1 Dump to 32,433 Stolen Credentials

Security analysts at HEROIC identified a stealer log file posted to a public Telegram channel on October 28, 2023. The file, known as Alaska Cloud 1, contained 32,433 records collected from infected devices across the United States. Each record included an email address, a plaintext password, and a URL indicating the service where the credentials were originally captured. The log was shared openly with no access restrictions, making it immediately available to any threat actor monitoring the channel.

Why Alaska Cloud 1 Gives Attackers a Significant Head Start

The scale of this leak matters, but the quality of the data is what truly elevates the threat. When credentials are exposed as plaintext rather than as hashed values, an attacker does not need any technical capability to use them. There is no decryption step, no cracking process. The email and password can be copied and pasted directly into any login form.

The URLs included in each record make this even more actionable. An attacker looking at the Alaska Cloud 1 log knows not only who the victim is, but also exactly which platform holds their credentials. That kind of precision dramatically increases the success rate of automated account takeover attempts.

What Was Exposed in the Alaska Cloud 1 Stealer Log

• Email addresses connected to active accounts
• Plaintext passwords captured directly from compromised devices
• URLs and API host addresses identifying the targeted services

Why Alaska Cloud 1 Represents a Serious and Ongoing Risk

Once a stealer log is posted to Telegram, it does not disappear. It gets downloaded, copied, and redistributed across dark web forums and criminal marketplaces. The Alaska Cloud 1 data may still be in active circulation, being used in credential stuffing attacks against email providers, financial institutions, and cloud platforms.

Credential stuffing is simple in concept. Attackers take a list of known email and password pairs and systematically test them against popular services. Even a small success rate across 32,433 records translates into hundreds of compromised accounts. From there, the consequences can include identity theft, financial fraud, unauthorised purchases, and in corporate cases, full network intrusion.

If a personal email in this log is also used as a work login, or if the same password was reused at work, an employer could face the consequenses of a breach that started on one person's home computer.

How Stealer Logs Like Alaska Cloud 1 Are Built and Distributed

Infostealer malware is the engine behind logs like Alaska Cloud 1. These malicious programs are typically delivered through phishing emails or bundled with pirated software. Once a device is infected, the malware runs in the background and harvests everything stored in browsers: saved passwords, session cookies, form autofill data, and actively typed credentials.

The collected data is compressed into a log file and uploaded to a remote server. The operator then segments the logs and distributes them through Telegram channels, which have become a primary distribution point for stolen credential data in recent years. Victims rarely recieve any warning that this has occurred, and many discover the breach only after unauthorized activity begins on one of their accounts.

Check If Your Email Was Part of the Alaska Cloud 1 Dump

HEROIC's free breach scanner searches a database of more than 400 billion exposed records, including stealer logs like Alaska Cloud 1 that were shared through Telegram. Enter your email at heroic.com to see instantly whether your credentials appeared in this dump or any other known breach. Knowing you have been exposed is the first step toward protecting yourself before an attacker acts on that information.