
Who:
Hertz (car rental company)
Cleo Communications (file transfer vendor)
Possible link to Clop ransomware gang (Russia-affiliated)
What:
A cyberattack exploiting zero-day vulnerabilities in Cleo’s platform led to unauthorized access to Hertz customer data between October–December 2024.
Exposed data includes:
Names, contact details, and dates of birth
Credit card and driver’s license information
Some Social Security and passport numbers
Workers' compensation claim data
Impact:
Global exposure: Breach notices issued in the U.S., Canada, EU, UK, and Australia
Unknown scope: Number of affected customers not yet confirmed
No current evidence of fraudulent use, but sensitive data is at risk
Cleo vulnerabilities have been patched, and authorities have been notified
Action Needed:
Monitor for fraud and identity theft
Review vendor security practices
Implement stronger third-party risk management policies
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