high severity August 04, 2025 · 3 min read

Bouygues Telecom Data Breach (2025)

If you are a customer of Bouygues Telecom, here’s what’s now in circulation.

In August 2025, the French telecommunications company Bouygues Telecom detected a cyber attack against their services. The incident resulted in a data breach that exposed almost 6.4M customer records, including 5.7M unique email addresses. The breach also exposed names, physical addresses, phone numbers, dates of birth and IBANs (International Bank Account Numbers). Bouygues Telecom advised that all affected customers had been notified about the incident.

On August 4 2025, French telecommunications provider Bouygues Telecom disclosed a cyber attack that exposed 5.7 million unique email addresses and nearly 6.4 million customer records containing names, physical addresses, phone numbers, dates of birth, and bank account numbers (IBANs).

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What Public Reporting Shows

Public reporting indicates the breach occurred when attackers gained access to Bouygues Telecom systems and extracted customer data. The company later confirmed that 5.7M unique emails were among the records taken, along with full names, home addresses, telephone numbers, birth dates, and IBAN bank account details. Bouygues Telecom stated it had notified all affected customers. Industry research from sources such as DoxxScan™ continuous monitoring lists the incident under its database of known breaches, confirming the scale and data types involved.

No evidence has surfaced that the stolen data has been publicly dumped on major leak sites yet, but the volume and sensitivity of the records make it a high-value target for subsequent misuse.

Why This Matters for You and Your Family

If you or anyone in your household has ever been a Bouygues Telecom customer, your personal information is now in the hands of unknown parties. Physical addresses combined with dates of birth and phone numbers create immediate risks of identity theft, targeted scams, and unwanted contact. Bank account numbers (IBANs) raise the possibility of fraudulent payment instructions or social-engineering attacks aimed at your finances.

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What the free scan actually returns

Sample resultyou@email.comIllustrative — not a real person

Found on people-search siteswe remove these

These listings are live, public, and legal to remove — and removing them is what we do.

value redacted in this sampleage, relatives, address historySpokeo

value redacted in this samplephone, household, property recordsBeenVerified

value redacted in this sample580 companies checked

Found in breach recordsverifiedreported — unverified

Each record is labeled: confirmed breach data, or an attacker’s claim no one has verified.

verifiedvalue redacted in this samplepassword + phone · 2024telecom breach

unverifiedvalue redacted in this sampleclaimed in ransomware listing · 2026leak-site claim

Leaked data cannot be deleted from the internet — anyone claiming otherwise is lying. Broker listings can be removed. We do the second, and show you exactly what to fix from the first.

Report details & sourcing

Severity High includes account details that can be misused directly

Disclosed August 04, 2025

Last reviewed July 22, 2026

Affected 5.7M

Data exposed Bank account numbersDates of birthEmail addressesNamesPhone numbersPhysical addresses

By GalaxyWarden Threat Research · Editorial & sourcing standards

Editorial & sourcing policy

GalaxyWarden is a breach-monitoring service and news aggregator. We do not exfiltrate, host, purchase, or redistribute stolen data. Breach information is compiled from publicly accessible sources and threat-intelligence platforms, and is reported as claims attributed to their source. We promptly correct or remove material shown to be inaccurate — see our content & takedown policy or write to support@galaxywarden.com.

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