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Massive Data Breach Exposes Personal Information of 10 Million Users A significant data breach has compromised the personal information of approximately 10 million users of a popular online service. The breach was attributed to a vulnerability in the service's API, identified as CVE-2026-0456, which allowed unauthorized access to user data. Affected users include individuals from various sectors, raising concerns about identity theft and fraud. The attack was discovered on March 1, 2026, and the company has since initiated an investigation. As of now, the company has not confirmed if any financial data was accessed. Users are being advised to change their passwords and monitor their accounts for suspicious activity. The breach has prompted a broader discussion on the security of API endpoints. Law enforcement agencies are involved in the investigation to determine the source of the attack. The current status is that the vulnerability has been patched, but the full scope of the breach is still being assessed. 1 sources 70