Skip to main content
Back to overview
Medium

Whise.eu (European Real Estate CRM) Data Leak by ChimeraZ

The threat actor ChimeraZ claimed to have leaked a database from Whise, a Belgian CRM system for the real estate sector, on the dark web on June 23, 2026.

Key points

  • Threat actor ChimeraZ claimed responsibility for the data leak.
  • A database from Whise, a real estate CRM system, was leaked on the dark web.
  • The leaked data reportedly contains 40.85 million records (15.8 GB of JSON files).

Connected intelligence

Signal brief

Follow the organization, likely method and potential impact to explore connected Shadow Tier intelligence.

02

Likely method

Error

Threat source not confirmed

03

Potential impact

Data Exposure

Impact remains under assessment

Published
Jun 23, 2026
Updated
Jun 26, 2026
Confidence
Medium
Evidence
1 source

Structured assessment

Signal analysis

It helps compare this signal with other published signals without treating the labels as final determinations.

Threat source

Threat source not confirmed

Watch process controls, misconfiguration and accidental disclosure paths.

Business impact

Potential business exposure
Impact area
Unknown
Likely asset
Server or cloud data store

Mentioned entities

WhiseEuropean Real Estate CRMChimeraZ TheChimeraZWhiseBelgian CRMGB of JSONBelgium andFrance. ThreatCRM

Quick context

Questions about this signal

What happened in this signal?

The threat actor ChimeraZ claimed to have leaked a database from Whise, a Belgian CRM system for the real estate sector, on the dark web on June 23, 2026. The leaked data reportedly consists of 40.85 million records, approximately 15.8 GB of JSON files. Whise is a market leader in Belgium and also active in France.

When was this signal reported?

Shadow Tier lists Jun 23, 2026 as the signal date.

Which organization is connected to this signal?

Whise is the organization connected to this public signal.

Explore Whise
Which impact area is relevant?

This signal is connected to data exposure and breach intelligence based on its reported consequences.

Explore data exposure and breach intelligence