Researchers Link the 87 Boss2 Telegram Dump to 4,609 Stolen Credentials

In June 2023, security researchers linked a stealer log upload by Telegram user 87 Boss2 to 4,609 compromised records containing email addresses, plaintext passwords, and endpoint URLs. The dataset was observed circulating within private Telegram channels, a common distribution method for threat actors who acquire infostealer logs in bulk and resell access to credential marketplaces. HEROIC analysts confirmed the breach and added it to the platform's monitored records.

Why This Is Dangerous

Researchers note that stealer log data of this type is especially valuable to cybercriminals because it arrives pre-sorted with passwords already in plaintext. There is no additional cracking required. The URLs included in the dataset reveal exactly which services and websites the victims used, allowing attackers to craft highly targeted account takeover attempts. Within hours of a log appearing on Telegram, automated bots begin testing the credentials accross dozens of platforms simultaneously.

What Was Exposed

The 87 Boss2 Telegram stealer log contained the following categories of data for each of the 4,609 compromised records:

• Email Addresses
• Plaintext Passwords
• URLs (endpoint and API host addresses)

Why This Matters

Stealer log leaks like this one fuel credential stuffing attacks at scale. When attackers possess both an email address and a matching plaintext password, they can attempt to access banking portals, email inboxes, corporate networks, and e-commerce accounts without any additional effort. Because many people reuse the same password accross multiple services, a single compromised credential can unlock dozens of accounts. This leads directly to identity theft, financial fraud, and unauthorized access to sensitive corporate systems.

How Stealer Log Breaches Work

Stealer log breaches begin with infostealer malware that infects a victim's device through phishing campaigns, trojanized software, or malicious browser extensions. Once active, the malware silently collects saved passwords from browsers, email clients, and password managers. It also records the URLs of websites where the credentials were used. This data is compressed into log files and transmitted to Telegram channels or dark web forums where threat actors sell or freely distribute them. Victims typicaly have no indication their device was infected until their accounts begin showing unauthorized activity.

Check If You Are Affected

If your email address appeared in the 87 Boss2 Telegram stealer log, your credentials may already be in the hands of cybercriminals. HEROIC's free breach scanner searches more than 400 billion exposed records to identify exactly what data of yours has been compromised. Run a free search today and find out before attackers exploit your information.