On April 5, 2024, Greylock McKinnon Associates, Inc. filed a notice of data breach with the Attorney General of Maine after discovering that the company was the recent target of a cyberattack. In this notice, Greylock McKinnon explains that the incident resulted in an unauthorized party being able to access consumers’ sensitive information, which includes their names, Social Security numbers, dates of birth, addresses, Medicare Health Insurance Claim Numbers, health insurance information and health information. Upon completing its investigation, Greylock McKinnon began sending out data breach notification letters to all individuals whose information was affected by the recent data security incident.

If you received a data breach notification from Greylock McKinnon Associates, Inc., it is essential you understand what is at risk and what you can do about it. A data breach lawyer can help you learn more about how to protect yourself from becoming a victim of fraud or identity theft, as well as discuss your legal options following the Greylock McKinnon Associates data breach. For more information, please see our recent piece on the topic here.

What Caused the Data Breach Affecting Greylock McKinnon Associates?

The Greylock McKinnon Associates data breach was only recently announced, and more information is expected in the near future. However, Greylock McKinnon’s filing with the Attorney General of Maine provides some important information on what led up to the breach.

According to this source, Greylock McKinnon is a consulting firm that provides litigation support services to companies and the Department of Justice in civil litigation matters.

On May 30, 2023, Greylock McKinnon detected unusual activity within its computer network. In response, Greylock McKinnon took steps to secure its systems and then began working with third-party data security specialists to investigate the incident. The company also notified law enforcement and the Department of Justice.

Ultimately, the Greylock McKinnon investigation confirmed that the personal information of 341,650 people “was likely affected in this incident.”

After learning that sensitive consumer data was accessible to an unauthorized party, Greylock McKinnon Associates reviewed the compromised files to determine what information was leaked and which consumers were impacted. While the breached information varies depending on the individual, it may include your name, Social Security number, date of birth, address, Medicare Health Insurance Claim Number, health insurance information and health information.

On April 5, 2024, Greylock McKinnon Associates sent out data breach letters to anyone who was affected by the recent data security incident. These letters should provide victims with a list of what information belonging to them was compromised.

More Information About Greylock McKinnon Associates, Inc.

Greylock McKinnon Associates, Inc. is a business services company based out of Boston, Massachusetts. Greylock McKinnon provides economic analysis and litigation support to domestic and international clients in the legal profession, the business community, as well as to government agencies. Greylock McKinnon Associates employs more than 28 people and generates approximately $5 million in annual revenue.