O'Brien & Ryan, LLP data breach

Clerk's notes

O'Brien & Ryan, LLP, a professional law firm, recently reported a data security incident to the New Hampshire Attorney General's office. This filing, dated September 10, 2025, indicates an unspecified type of breach that compromised the firm's systems.

The report confirms that the incident involved unauthorized access to the firm's network. Given the nature of a law firm's operations, such systems typically store a wide range of sensitive personal information pertaining to clients and other parties involved in legal matters.

Individuals who received a formal data breach notification letter from O'Brien & Ryan, LLP are advised to carefully review its contents. This letter should provide specific details about the incident and any recommended steps the firm suggests taking. The case is currently listed as "investigating" by the New Hampshire authorities.

It is important for affected individuals to stay vigilant for any unusual activity across their personal accounts and records. While the specific types of information involved are not detailed in the public record, monitoring financial statements and other personal accounts is a general best practice after such an incident.

If you have received a notification letter and are concerned about your rights or potential impact from this data breach, you may wish to seek a free case review to understand your options.

If a notification letter about this breach reached you, see every New Hampshire data breach on file or browse all cases.