Breach Intelligence Report 31 Mar 2026

monster team logs part162: Another Segment of the Multi-Volume Telegram Upload

HEROIC
HEROIC Threat Intelligence Team
Email Addresses Plaintext Password Urls
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Records Exposed 5,421
Source Type Stealer log
Origin Telegram
Password Type plaintext

What Happened in the monster team logs part162 Upload

On January 16, 2025, an anonymous Telegram user added another segment to an ongoing multi-volume release by publishing a file labeled monster team logs.part162. The drop followed the same naming convention used across dozens of earlier parts in the series, suggesting the operator is steadily distributing bulk infostealer output through a single channel. Heroic analysts flagged the upload because it combined plaintext credentials with API host URLs, a pairing that can fast-track both consumer account takeover and enterprise reconnaissance.

Incident Timeline and Series Context

The part162 label places this file within a sequential, numbered release schedule where each segment typically contains thousands of freshly harvested endpoint records. Channels that publish on this cadence tend to keep previous parts online for mirroring, meaning defenders rarely get a clean takedown window. January 16, 2025 is the confirmed leak date for this segment, and earlier parts in the same series were indexed by threat researchers in the days before and after.

Records and Data Exposed

This part exposed 5,421 records. Each record pairs an email address with a plaintext password and at least one URL, and many URLs resolve to API hosts rather than typical consumer login pages. The inclusion of API endpoints is significant because those credentials often unlock machine-to-machine integrations, webhook receivers, and internal tooling that sit outside traditional multi-factor workflows.

Why Stealer Log Series Matter

Multi-part infostealer releases like monster team logs normalize the steady drip of fresh credentials into criminal marketplaces. Volume-over-novelty is the point: by releasing part after part on a predictable schedule, operators keep buyers subscribed and keep raw logs circulating long after the original infections. For victims, that means credential reuse risk does not fade, it compounds, because the same logins reappear across multiple mirrors for months.

What Exposed Users Should Do Now

If you use any Telegram-connected service, developer portal, or SaaS admin console and have not rotated credentials since January 2025, assume your session may have been harvested. Replace reused passwords with unique high-entropy values, enforce multi-factor authentication on every administrative account, revoke stale API tokens, and review audit logs for suspicious logins originating from unfamiliar regions or hosting providers.

Check Your Exposure With HEROIC

HEROIC maintains one of the largest breach intelligence repositories in the industry, with more than 400 billion compromised records indexed from stealer logs, combolists, and confirmed breaches. Scan your email or domain against the HEROIC database to see whether credentials linked to the monster team logs part162 drop or related stealer series have surfaced, and act before attackers do.

Breach Breakdown

Domain N/A
Leaked Data Email Addresses,Plaintext Password,URLs
Password Types plaintext
Date Leaked 31 Mar 2026
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Breach Rank #17,096 by affected users
Impact Score
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sensitivity + scale + recency
Est. Financial Impact $39.2K fraud, phishing & misuse risk
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Identity Theft Risk Score

Risk Score: 8.7/10 - Critical

Data Exposure Analysis

Passwords Critical
Financial High
Personal Medium
Social High
Security Critical

Breach Timeline Analysis

March 2024 Multiple credentials exposed in recent data breach
January 2024 Password found in dark web marketplace
December 2023 Personal information leaked in major security incident

Security Recommendations

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Critical: Change compromised passwords immediately and enable 2FA on all accounts

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