You are given a text that consists of multiple sentences. Your task is to perform abstractive summarization on this text. Use your understanding of the content to express the main ideas and crucial details in a shorter, coherent, and natural sounding text.

SAN DIEGO, Aug. 13, 2020 /PRNewswire/ -- Shareholder rights law firm Johnson Fistel, LLP is investigating potential violations of the federal securities laws by OneSpan Inc.("OneSpanor the "Company") (NASDAQ: OSPN). On August 4, 2020, OneSpan disclosed that it had identified errors related to specific contracts with customers involving software licenses. Then, on August 11, 2020, OneSpan revealed that it could not timely file its quarterly report for the period ended June 30, 2020. OneSpan acknowledged that revenue had been overstated by $2.2 million from the first quarter in the year ended December 31, 2018, to the quarter ended March 31, 2020. Following this news, OneSpan shares plummeted nearly 40%, to close at $18.84 per share on August 12, 2020. If you have information that could assist in this investigation, including past employees and others, or if you are an OneSpan shareholder and are interested in learning more about the investigation, please contact Jim Baker ([emailprotected])by email or phone at 619-814-4471. If emailing, please include a phone number. Additionally, you can [click here to join this action]. There is no cost or obligation to you. About Johnson Fistel, LLP:Johnson Fistel, LLP is a nationally recognized shareholder rights law firm with offices in California, New York and Georgia. The firm represents individual and institutional investors in shareholder derivative and securities class action lawsuits. For more information about the firm and its attorneys, please visit http://www.johnsonfistel.com. Attorney advertising. Past results do not guarantee future outcomes. Contact:Johnson Fistel, LLPJim Baker, 619-814-4471[emailprotected] [click here to join this action]. SOURCE Johnson Fistel, LLP Related Links http://www.johnsonfistel.com

Answer: (OSPN) Alert: Johnson Fistel Investigates OneSpan; Investors Suffering Losses Encouraged to Contact Firm