---
title: "Data breach at NosRezo / Propertips (iad Group)"
description: "A cybercriminal actor using the alias ChimeraZ claims, on a cybercrime forum, to be selling a database attributed to NosRezo / Propertips, a French real-estate referral platform owned by iad Group. The claimed dataset covers 413,722 people, including 263,901 customers and 149,821 advisors, in a roug"
canonical: https://inyourgeek.com/en/fuites-de-donnees/2026-09-16-nosrezo-propertips-iad-group
type: fuite-de-donnees
author: "Sébastien Soulier"
publisher: "InYourGeek"
language: en
datePublished: 2026-09-16
dateModified: 2026-09-16
---
# NosRezo / Propertips (iad Group)

Data breach — Moderate

A cybercriminal actor using the alias ChimeraZ claims, on a cybercrime forum, to be selling a database attributed to NosRezo / Propertips, a French real-estate referral platform owned by iad Group. The claimed dataset covers 413,722 people, including 263,901 customers and 149,821 advisors, in a roughly 160 MB JSON file. A sample reportedly shows names, phone numbers, postal addresses and emails, along with real-estate project details and associated financial amounts. Neither NosRezo/Propertips nor iad Group has publicly confirmed the incident so far.

Contact details combined with real-estate project details and financial amounts could be used to craft credible phishing messages impersonating an advisor or agency.

| Fact | Value |
| --- | --- |
| Disclosed on | September 16, 2026 |
| Accounts affected | 413,722 |
| Sector | Retail |
| Country | France |
| Cause | Undisclosed |
| Severity | Moderate |
| Status | Reported |

## Exposed data

- Full name
- Phone number
- Postal address
- Email address
- Employment data

## What you can do

- Expect phishing attempts quoting your name and this company. A message that knows your details is not legitimate for that reason.
- You can ask the organisation exactly what was exposed about you (right of access), and complain to the DPA if no answer comes within a month.

## Sources

- [NosRezo (Propertips)](https://frenchbreaches.com/alertes/nosrezo-propertips-mu452qgr87fyxkxkxh) — FrenchBreaches
- [Propertips by iad visé par une cyberattaque : 413 000 clients et conseillers en fuite](https://www.cyberattaque.org/propertips-iad-cyberattaque-nosrezo/) — cyberattaque.org
- [NosRezo : fuite de données revendiquée visant ses clients et conseillers](https://fuitesinfos.fr/article/2026-09-16-nosrezo) — Fuites Infos
- [IAD Group – NosRezo Dataset Claim Covers 413,722 People](https://www.hendryadrian.com/iad-group-nosrezo-dataset-claim-covers-413722-people/) — Hendry Adrian
- [IAD Group - NosRezo Dataset Claim Covers 413,722 People](https://darkwebinformer.com/iad-group-nosrezo-dataset-claim-covers-413-722-people/) — Dark Web Informer

_Entry built from the cited sources after a corroboration check, then reviewed before publication._

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