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Almerys Cyberattack Exposes 15 Million Social Security Numbers

Almerys Cyberattack Exposes 15 Million Social Security Numbers

First seen 26 May 2026, 08:34 UTC

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ThreatCluster AI
ThreatCluster May 27, 2026 at 08:10 UTC
  • Over 15 million social security numbers were compromised in the Almerys cyberattack.
  • Health insurer Alan has alerted its members to potential phishing risks following the breach.
  • The Paris Public Prosecutor's Office is investigating the incident.

Almerys, a third-party payment specialist, confirmed a cyberattack that compromised personal data of beneficiaries, including over 15 million social security numbers. The attack, which affected all customers of Almerys, was reported by health insurer Alan, which advised its members to remain vigilant against potential phishing attempts. The exposed data includes names, birth dates, contract numbers, and coverage details. The Paris Public Prosecutor's Office has opened an investigation into the breach. Almerys had previously suffered a cyberattack in 2024, raising concerns about its security measures. The full scope of the impact and the method of the attack remain unclear.

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Timeline

2024-XX-XX
Previous cyberattack on Almerys
Almerys had previously experienced a cyberattack in 2024, raising concerns about its security protocols.
Ground.News
2026-05-24
Alan warns members of potential phishing
Following the cyberattack on Almerys, health insurer Alan advised its clients to be cautious of phishing attempts.
Ground.News
2026-05-25
Almerys confirms cyberattack
Almerys acknowledged a data breach affecting all its customers, including sensitive personal information.
Ground.News

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