Orange Telecom Suffers Multiple 2025 Cyberattacks Exposing 850,000 Belgium Customers, 4GB Data Leaked

In 2025, French telecom giant Orange experienced multiple cyberattacks, with the most recent in July leading to the theft and release of approximately 4GB of data on the dark web. This breach, linked to the ransomware group Warlock, involved outdated or low-sensitivity business user information, according to Orange, which minimized the impact and stated hacker access was limited. Separately, Orange Belgium suffered a data breach affecting 850,000 customers, exposing names, phone numbers, SIM details, tariff plans, and PUK codes, while financial and password data remained secure. Orange Belgium has taken steps to block system access, alerted authorities, filed a judicial complaint, and informed affected customers, warning them about potential phishing attacks. These incidents form part of a series of cyberattacks Orange has faced in 2025, raising concerns about the security of European telecom infrastructure amid similar attacks on other providers like SFR, Free, and Bouygues Telecom. Orange continues collaborating with authorities and affected parties to manage the fallout and improve cybersecurity defenses.