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squarespace.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 affecting approximately 250,140 clients and 2,520 employees of squarespace.com between July 2025 and June 2026. This exposure is primarily characterized by 203,251 historical data breaches and 49,409 active infostealer logs, with a notable surge in employee-related events in January 2026. The most prevalent malware families observed are LummaC2, Rhadamanthys, and Redline, often targeting login and OAuth authorization endpoints. The data suggests a high likelihood of credential compromise and potential unauthorized access to client accounts, with the United States being the most frequently observed country.

Total Events

252,660
credential exposure events

Employee Affected Events

2,520
account email domain = squarespace.com

Client Affected Events

250,140
service target = squarespace.com

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12-Month Events Timeline

Event volume by breach date, employee VS client

EmployeesClients
80,00053,33326,6670
peak month 61,251
Jul 25Sep 25Nov 25Jan 26Mar 26May 26Jun 26

Infostealers VS Data Breaches

Live stealer logs VS data breaches

Infostealer logs
Events49,409
Share20%
Data breaches
Events203,251
Share80%
Infostealer logs (20%)
49,409events
Data breaches (80%)
203,251events

2,520 compromised employee accounts pose an infrastructure risk, while 250,140 leaked client credentials create regulatory liability.

Antivirus Distribution

Security Tools on Infected Endpoints

Windows Defender2,142
McAfee VirusScan124
McAfee110
Sophos Intercept X105
Windows Defender McAfee83
Windows Defender McAfee VirusScan62
Windows Defender.44
Windows Defender Quick Heal Total Security27
Windows Defender Guardian Total Security18

Malware Families Distribution

Distribution of Active Stealer Strains

LummaC27,726
Rhadamanthys5,978
Redline5,838
Acreed3,717
Vidar2,467
X-Files670
Blank Grabber560
Millenium500
StealC490

Top Login URLs

Top exposed services found in the event results

  1. 1https://login.squarespace.com/api/1/login/oauth/provider/authorize74,746
  2. 2login.squarespace.com/api/1/login/oauth/provider/authorize40,333
  3. 3https://login.squarespace.com25,988
  4. 4login.squarespace.com24,495
  5. 5https://login.squarespace.com/3,525
  6. 6https://www.squarespace.com/login3,450
  7. 7squarespace.com/login2,910
  8. 8https://oauth.squarespace.com/config/iframeSignup2,863
  9. 9squarespace.com2,544
  10. 10login.squarespace.com/1,858

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
Events7,069
India
Events3,030
Pakistan
Events1,858
United Kingdom
Events1,576
Brazil
Events1,112
Philippines
Events1,068
Canada
Events1,039
Australia
Events792

Country Breakdown

  1. 1United States7,069
  2. 2India3,030
  3. 3Pakistan1,858
  4. 4United Kingdom1,576
  5. 5Brazil1,112
  6. 6Philippines1,068
  7. 7Canada1,039
  8. 8Australia792

Services Classification Distribution

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

Zendesk687
Okta9
WordPress3

Operating System Distribution

Distribution of compromised endpoint builds

Windows 114,663
Windows 11 24H2 build 26100 (64 Bit)2,861
Windows 10 Enterprise x642,251
Windows 10 22H2 build 19045 (64 Bit)2,099
Windows 10 Home x641,753

Leak Repository Classification

Where the exposed records currently reside

0
Named breaches
200,723
Combolist pools
2,528
Unattributed dumps

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