Digit RE Group Data Breach: 3.4 Million Real Estate Profiles Compromised

In summary: A database attributed to the real estate group Digit RE Group was posted online on June 24, 2026, on a cybercriminal forum, affecting nearly 3.4 million people. No banking data has been mentioned so far, but this type of data breach primarily exposes contact information and personal details—the raw material for targeted phishing attacks against your teams and customers.

What Happened

On June 24, 2026, a malicious actor using the pseudonym “ChimeraZ” claimed responsibility for the release of a database linked to Digit RE Group, a provider of digital solutions for real estate networks. According to the specialized media outlet Cyberattaque.org, which reported on the claim, the dataset is said to involve approximately 3.4 million people, with a reported volume of 6.3 GB. The largest batches reportedly target contacts from networks such as Capifrance, Optimhome, and Drimki. The attacker also announced a second release, described as documents belonging to clients and employees.

At this point, this is merely an allegation. Digit RE Group has not publicly confirmed the exact scope of the breach, and there is no indication that bank account information is included in the leaked files. This leak is part of a series that has been affecting the French real estate sector for several weeks, with other networks targeted in recent days.

Does this apply to me?

Not in real estate? The mechanism is still instructive, because it plays out exactly the same way in every industry. When a service provider or platform you use gets hacked, your data is compromised—even if there’s no security breach on your end.

Three types of individuals are highlighted here. Agencies and brokers who work with these networks, whose professional contacts may be shared. Individuals who have used these platforms as buyers or sellers, whose contact information is used to set up credible scams. And any company whose employee has reused, on one of these sites, a password already used at work. It is this last point that turns an external data breach into an internal risk.

To find out if an address appears in a known data breach, reference services such as Have I Been Pwned offer a free check. A positive result does not mean that your company has been compromised, but it does mean you should change the affected passwords immediately.

What to Do Now

Three key steps, from the most urgent to the most fundamental.

1. Stop password reuse. This is the measure that yields the greatest immediate benefit. Enable multi-factor authentication (MFA) for email and Microsoft 365 access, and ask everyone to never reuse a work password on an external site. A password manager makes this policy manageable.

2. Warn your teams about a wave of phishing attacks. Following a highly publicized data breach, scammers send messages that reference the incident to make them appear legitimate. Remind them of the simple rule: never make a wire transfer or change bank account information without verifying it through a second channel—ideally, a phone call to a known number.

3. Take a look at your service providers. Make a list of the platforms and providers that hold your data or your customers’ data, and check which ones might have been affected. This inventory also serves as the foundation for a compliance process, such as under NIS2 for affected companies.

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In a nutshell

A major data breach has hit the French real estate sector, but the real risk for an SME can be summed up in one sentence: a reused password and the resulting wave of phishing attacks. Enable MFA, ban the reuse of passwords, and alert your teams—and you’ve got the essentials covered. These practices can be implemented quickly, without disrupting your organization.

Frequently asked questions

Are my banking details at risk? There is no indication of that at this time. The data breach mainly involves contact information and personal details, which are primarily used for targeted phishing.

What should I do first if one of my employees is affected? Immediately change the reused password, verify that it isn't used anywhere else, and enable MFA on work accounts.

— Samir Amara, CEO — IT Systèmes