Builders FirstSource, Inc Data Breach

Builders FirstSource, Inc. has notified an unknown number of individuals that a data security incident exposed their name along with certain other personal data elements. Companies that collect personal information as part of doing business have a responsibility to protect that data from unauthorized access, and a breach of that duty can leave affected individuals vulnerable to identity theft.

Builders FirstSource, Inc’s Data Breach Investigation

According to a notification letter sent to affected individuals, Builders FirstSource identified a data security incident that involved each recipient’s name in combination with certain other personal data elements specific to that individual. The notification letter filed with the Massachusetts Attorney General’s office is a template used for the company’s mail merge process, and it does not specify publicly which categories of information were involved for any given individual, only that the letter’s recipient’s name was exposed alongside other data specific to them.

In response to the incident, Builders FirstSource has arranged for affected individuals to receive two years of complimentary access to Epiq’s Privacy Solutions ID credit monitoring service. This service is designed to detect potential misuse of personal information and includes three-bureau credit monitoring, dark web monitoring, and identity theft insurance coverage. The company has stated that activating this service will not affect a recipient’s credit score, and has indicated it has taken additional steps to strengthen its security measures following the incident.

Data security incidents affecting companies in the building materials and construction supply industry can expose a wide range of personal information collected from employees, customers, and business partners over the course of normal operations. When a company operates across a large customer and vendor base, as Builders FirstSource does as one of the largest suppliers of building materials in the United States, a single security incident can potentially affect a substantial number of individuals even when the exact count and specific data categories are not disclosed publicly right away.

Because Builders FirstSource has not disclosed the precise data types involved for the general public, affected individuals should treat their personal notification letter, which does specify the data elements exposed for them individually, as the most accurate source of information about what was compromised in their specific case. Individuals who receive a letter referencing this incident should not assume the exposure was limited to their name alone.

When Did This Breach Occur?

Builders FirstSource has not publicly disclosed the specific date or timeframe of the underlying security incident. The notification letters to affected individuals were issued in August 2026.

What Information Was Breached?

The notification confirms that affected individuals’ names were exposed, along with certain other personal data elements specific to each individual. Builders FirstSource has not published a universal list of the additional data types involved; recipients’ individual letters specify the data elements exposed in their case.

What You Can Do

If you received a notice from Builders FirstSource about this incident, consider taking the following steps:

• Enroll in the complimentary two-year Epiq Privacy Solutions ID membership offered in your letter before the enrollment deadline.
• Review your personal notification letter carefully for the specific data elements listed as exposed in your case.
• Monitor your financial accounts and credit reports for unauthorized activity.
• Consider placing a fraud alert or credit freeze with the three major credit bureaus.
• Be cautious of phishing attempts referencing this incident that try to obtain additional personal information.

File a Data Breach Lawsuit Against Builders FirstSource, Inc

If your personal information was exposed as a result of this incident, you may be entitled to compensation. Companies that collect and store personal data have a legal responsibility to protect it, and a failure to do so can support a data breach lawsuit.

Contact us at Class Action U, where we’ll connect you with a lawyer skilled in class action lawsuits. If you’ve been contacted about this breach, received notice, or discovered you were impacted, fill out our quick, easy, and secure form to sign up. There is no cost to reach out to our legal partner and no obligation after speaking with someone from our team.