Data Breach at French Healthcare Payment Processor Puts 20 Million Policyholders at Risk

Stu Sjouwerman | Feb 23, 2024

Healthcare Ransomware AttacksA single account being phished caused millions of French healthcare policyholder records to be breached.

I’ve said it before… it only takes one phish. And in the case of French payment processor, Malakoff Humanis, a single click enabled a cyber attack was the catalyst for a data breach that occurred earlier this month, according to their post on LinkedIn (press See Translation for a localized version of the post).

Malakoff Humanis manages the third-party payment of 84 health insurance companies, totaling 20 million healthcare policyholders. The data stolen included the following details for each record:

  • Beneficiary's marital status
  • Date of birth
  • Social security number
  • Name of health insurer
  • Guarantees open to third-party payment

While no other details were stolen, having a name, birthdate, and social security number alone would allow cybercriminals to attempt to defraud the French government social security program with banking and mailing address updates.

In an interview with Humanis’ general director, Christophe Candé, it was indicated that the exact number of records was unknown — putting all 20 million potentially at risk. Additionally, when asked about whether this was a ransomware attack, Candé stated, “a healthcare professional’s account was phished.”

Phishing continues to be one of the easiest ways for cyber attacks to start. Those organizations that continually use new-school security awareness training are the ones minimizing the risk that such phishing attacks are successful, thereby minimizing the likelihood of a successful attack.

KnowBe4 empowers your workforce to make smarter security decisions every day. Over 65,000 organizations worldwide trust the KnowBe4 platform to strengthen their security culture and reduce human risk.

Discover Your Organization’s Phish-prone™ Percentage

Ninety-one percent of data breaches begin with spear phishing. Launch our Free Phishing Security Test for up to 100 users to uncover your team's vulnerability and see how your security posture stacks up against industry benchmarks.

Get Your Free Phishing Security Test

Secure the Digital Workforce: Human + AI

KnowBe4 empowers the modern workforce to make smarter security decisions every day. Trusted by more than 70,000 organizations worldwide, KnowBe4 is the pioneer of digital workforce security, securing both AI agents and humans. The KnowBe4 Platform provides attack simulation and training, collaboration security, and agent security powered by AIDA (Artificial Intelligence Defense Agents) and a proprietary Risk Score. The platform leverages 15 years of behavioral data to combat advanced threats including social engineering, prompt injection, and shadow AI. By securing humans and agents, KnowBe4 leads the industry in workforce trust and defense.