One day after Quest Diagnostics reported that nearly 12 million of its patients were potentially affected by a malicious breach of third-party bill collection vendor American Medical Collection Agency (AMCA), fellow clinical testing firm LabCorp acknowledged that roughly 7.7 million of its customers may be affected by the same incident.

Burlington, North Carolina-based LabCorp publicly disclosed the disturbing news yesterday in a Securities and Exchange Commission 8-K filing, warning that patient data it supplied to AMCA was exposed in the incident, which took place from Aug. 1, 2018 through March 30, 2019. Such information may include names, birth dates, addresses, phone numbers, dates of service, providers and unpaid balances.

Making matters worse, roughly 200,000 customers who paid LabCorp bills using AMCA's web portal had their payment card information compromised, the LabCorp continued. According to the SEC filing, AMCA did not share the identities of these particular victims, but assured the diagnostics company that it had already begun to notify these individuals, and would offer them two years of identity protection and credit monitoring services.

Please register to continue.

Already registered? Log in.

Once you register, you'll receive:

  • News analysis

    The context and insight you need to stay abreast of the most important developments in cybersecurity. CISO and practitioner perspectives; strategy and tactics; solutions and innovation; policy and regulation.

  • Archives

    Unlimited access to nearly 20 years of SC Media industry analysis and news-you-can-use.

  • Daily Newswire

    SC Media’s essential morning briefing for cybersecurity professionals.

  • Learning Express

    One-click access to our extensive program of virtual events, with convenient calendar reminders and ability to earn CISSP credits.