On February 4, 2015, Anthem Inc., a healthcare company, experienced a massive data breach that compromised the personal and medical information of over 80 million customers and employees. The hack was performed by hackers believed to be from China who tricked an employee into clicking on a phishing email. The stolen data included names, addresses, dates of birth, social security numbers, employment information, and income data. Anthem Inc. failed to implement adequate cybersecurity measures, including two-factor authentication and monitoring systems, allowing the breach to occur. The company has since implemented these measures and offered free credit monitoring to affected customers.