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reverb.com Domain Breach Exposure Report

Risk Score

High Risk

Massive event volume or critical assets compromised.

AI Findings Summary

Critical

The telemetry indicates a significant exposure event impacting over 129,000 clients and 335 employees of reverb.com. The primary driver of this exposure is a massive volume of historical data breaches, accounting for 84.7% of the total events, alongside a substantial number of active infostealer logs representing 15.3%. The timeline shows a notable increase in client-related events starting in late 2025 and peaking in early to mid-2026, with employee exposure also rising during this period. Malware families such as LummaC2, Redline, and Rhadamanthys are frequently observed, suggesting a sophisticated threat actor leveraging infostealers to harvest credentials and sensitive information. The majority of leaked data originates from combolist sources, further reinforcing the likelihood of credential stuffing attacks against the platform and its users.

Total Events

129,378
credential exposure events

Employee Affected Events

335
account email domain = reverb.com

Client Affected Events

129,043
service target = reverb.com

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12-Month Events Timeline

Event volume by breach date, employee VS client

EmployeesClients
40,00026,66713,3330
peak month 30,500
Jul 25Sep 25Nov 25Jan 26Mar 26May 26Jun 26

Infostealers VS Data Breaches

Live stealer logs VS data breaches

Infostealer logs
Events19,732
Share15%
Data breaches
Events109,646
Share85%
Infostealer logs (15%)
19,732events
Data breaches (85%)
109,646events

335 compromised employee accounts pose an infrastructure risk, while 129,043 leaked client credentials create regulatory liability.

Antivirus Distribution

Security Tools on Infected Endpoints

Windows Defender173
McAfee9
Windows Defender McAfee VirusScan9
Windows Defender Trend Micro Maximum Security7
Windows Defender [ON]2
ESET Security2
Unknown2
Windows Defender Norton 3601
Windows Defender Avast Antivirus1

Malware Families Distribution

Distribution of Active Stealer Strains

LummaC23,485
Redline3,207
Rhadamanthys2,263
Acreed1,605
Vidar888
RisePro472
StealC367
Millenium164
Raccoon118

Top Login URLs

Top exposed services found in the event results

  1. 1https://reverb.com19,032
  2. 2reverb.com18,707
  3. 3https://reverb.com/signup8,245
  4. 4reverb.com/signup6,789
  5. 5https://reverb.com/5,582
  6. 6https://reverb.com/software/instruments/ample-sound/15-ample-sound-ample-guitar-m-lite-ii5,345
  7. 7reverb.com/software/instruments/ample-sound/15-ample-sound-ample-guitar-m-lite-ii4,718
  8. 8reverb.com/4,453
  9. 9https://reverb.com/software/instruments/ample-sound/1-ample-sound-ample-bass-p-ii-lite3,048
  10. 10https://reverb.com/software/effects/acon-digital/47-reverb-solo2,922

Infostealer By Geography

Shows the distribution of Infostealer-related credential exposure events across different geographic regions. The location is determined by analyzing the metadata of the infected machines associated with each event.

United States
Events2,727
France
Events623
Brazil
Events591
Spain
Events548
United Kingdom
Events500
Mexico
Events438
Italy
Events356
Argentina
Events344

Country Breakdown

  1. 1United States2,727
  2. 2France623
  3. 3Brazil591
  4. 4Spain548
  5. 5United Kingdom500
  6. 6Mexico438
  7. 7Italy356
  8. 8Argentina344

Services Classification Distribution

Blast radius - closer to core = more critical infrastructure, size = credential volume

-
Total

Operating System Distribution

Distribution of compromised endpoint builds

Windows 111,592
Windows 10 Enterprise x641,334
Windows 11 24H2 build 26100 (64 Bit)1,075
Windows 10 22H2 build 19045 (64 Bit)780
Windows 10 Home x64778

Leak Repository Classification

Where the exposed records currently reside

0
Named breaches
109,436
Combolist pools
210
Unattributed dumps

Disclaimer: This report includes AI-generated content. AI can make mistakes, so verify important findings independently before taking action.