Zalaznik & Associates, PLLC, a Walla Walla, Washington tax, accounting, and business consulting firm, detected suspicious activity in its virtual office tax e-file system on March 11, 2026, according to a notice identified as filed with the Washington State Attorney General’s office. An investigation determined that an unauthorized actor accessed the firm’s systems between September 22, 2025, and March 11, 2026. The review of accessed files concluded on April 29, 2026, and the firm began mailing written notifications on or about May 29, 2026.
The accessed files contained clients’ names, Social Security numbers, and financial account information. The firm confirmed that 685 Washington residents were sent notification letters. The page states that the full nationwide scope remains unknown. The firm also reported the incident to the Internal Revenue Service and notified federal law enforcement, but the specific notifications and dates were not disclosed.