A Westborough woman stole more than $750,000 from her Brighton employer by misusing company credit cards, cashing company checks she’s written to herself, and obtaining her own line of credit using the employer’s information to pay for shopping sprees at PETCO and Victoria’s Secret, Suffolk County District Attorney Daniel F. Conley said today.

CYNTHIA GOLDBERG, a.k.a. CYNTHIA KUSSY, a.k.a. CYNTHIA McDONNELL (D.O.B. 11/13/62), was charged yesterday in a 20-count indictment alleging 10 counts of larceny over $250, five counts of making false entries in corporate books, and five counts of misusing a credit card for more than $250.

“As galling as the theft itself is the nature of what she purchased,” Conley said. “This was not someone of modest means who stole to make rent. This was someone who fraudulently billed extravagant expenses to a local business.”

Boston Police detectives assigned to Conley’s Special Investigations Unit arrested Goldberg at her Westborough home yesterday. In addition to setting her bail at $25,000, Suffolk Superior Court Clerk Magistrate Gary D. Wilson ordered her to surrender her passport and wear a GPS monitoring bracelet during the pendency of her case.

In the course of a seven-month grand jury investigation, Assistant District Attorney David Bradley of Conley’s Major Felony Bureau introduced evidence and testimony demonstrating that Goldberg had worked as a bookkeeper for an environmental engineering company in Brighton. During a five-year period ending with her termination in 2007, prosecutors allege, Goldberg embezzled a total of $752,245.64 from the company.

Investigators believe Goldberg’s total take was even higher, but were unable to charge additional offenses because the six-year statute of limitations had expired. Among documents recovered in the course of the grand jury investigation were receipts from PETCO, Victoria’s Secret, Banana Republic, Wolfer’s Lighting, the Ritz Carleton hotel, and area tanning salons. Receipts also show charges to limousine companies in Medway and out of state, as well as almost $650 in Massachusetts Turnpike Fast Lane violations.

Goldberg, who earned about $40 per hour as an accountant for the victimized business, allegedly obtained three credit cards in the name of the business and its chief executive officer, billing her purchases to the company’s bank account. Goldberg also allegedly used two legitimate business credit cards for her own unauthorized purchases, again billing her employer’s bank account. Investigators say Goldberg also wrote herself checks from her employer’s account and cashed them for her own gain.

Goldberg’s employer discovered the thefts when some vendors complained of non-payment for services and other financial anomalies came to light.

Goldberg is represented by attorneys Joseph Monahan and Marc Padellaro. She will return to court on July 28.