2.1K Hotmail Accounts: Kiotaka_Support Stealer Dump

In October 2025, a threat actor operating under the Kiotaka_Support handle released 2,182 compromised Hotmail account records through Telegram. This stealer log contains complete credential pairs: email addresses and plaintext passwords harvested from infected Windows systems. The dataset also includes system endpoint information and authentication URLs, creating a comprehensive toolset for account takeover attacks.

The Threat You Face
Your Hotmail account is the gateway to your entire digital life. When attackers obtain your email-password combination from a stealer log, they can immediately access recovery options for your banking accounts, social media, streaming services, and email backups. Plaintext passwords mean no computational effort is required—instant login is possible. With 2,182 accounts exposed in this single dump, statistically many users have already been victimized.

What Was Exposed

• Active Hotmail email addresses
• Plaintext passwords in clear text
• System endpoint identifiers
• Authentication and API URLs
• Cached session information

Why This Matters

Kiotaka_Support stealer logs are dangerouse because they're part of an active malware distribution network. Unlike historical breaches that may have partial hashes, these records represent fresh compromises with full credentials. The endpoints included mean attackers can profile your system, identify corporate or institutional affiliation, and target other systems on your network. If you're a business user, a single Hotmail compromise might be your company's first step toward ransomware deployment.

How Kiotaka_Support Operates

Kiotaka_Support distributes stealer malware through phishing emails, malvertising, and watering hole attacks. The malware runs in the background, periodically exfiltrating all saved credentials, browser cookies, and system information. When the attacker accumulates enough quality data, they organize it and publish samples through Telegram to attract buyers and build reputation in underground forums. The Hotmail-specific dump suggests either targeted campaigns or selective sorting of harvested data for higher-value sales.

Check If You're Affected

Search for your email below to verify if your Hotmail account was compromised. If found, immediately reset your password and review account recovery settings.