The answer is: it depends. A Superior Court recently addressed that issue in Lockley v. Studentcity.com (Suffolk Superior Court, No.201801293-BLS2). Ms. Lockley, a resident of Colorado, brought a putative class action lawsuit alleging violation of the Wage Act against Studentcity.com, Inc. ("Student City"), a foreign corporation doing business in Massachusetts.
Business Litigation Session Holds That Memorized Information Derived From Employment Can Violate Confidential Information And Non-Solicitation Clauses
In a novel recent decision, the Business Litigation Session of the Superior Court of Massachusetts held that a financial consultant who had left his job and then allegedly prepared a list of his old firm's clients entirely from memory on his first day with his new employer had violated the non-solicitation and confidential information provisions in his employment agreement with the former employer.