Sullivan Environmental Services Discloses Data Breach to NH Regulators

Sullivan Environmental Services has officially reported a data security incident to the New Hampshire Attorney General's Office. The filing date for this notification was July 31, 2026, indicating an ongoing investigation into the cybersecurity event.

The public record did not specify the exact nature of the breach or the precise categories of information that were exposed. However, organizations operating in environmental science, regulatory compliance, and public health infrastructure, like Sullivan Environmental Services, routinely handle various forms of sensitive personal and professional data during their operations.

When personal information is compromised, individuals may face risks such as unauthorized access to their accounts, potential identity theft, or fraudulent communications. Maintaining vigilance for any unexpected activity is an important step.

Individuals who may be affected by this incident are advised to take general protective measures. These include routinely reviewing financial statements and credit reports for any suspicious transactions or new accounts opened in their name. Enabling multi-factor authentication on all online accounts, where available, can add an extra layer of security.

Additionally, it is recommended to be cautious of unsolicited emails, phone calls, or text messages that ask for personal details. Such communications could be phishing attempts designed to exploit compromised information.

This information is based on public filings submitted to the New Hampshire Attorney General's Office, which serves as a record for reported data security incidents.