https://phys.org/news/2019-01-hacking-scheme.html

Authorities said the plot was carried out between 2016 and 2017, and was the second phase of a long-running effort that originally targeted news agencies which publish corporate news releases.

By trading on and selling early access to sensitive information from annual and quarterly reports, and other filings, before they were released to the public, the defendants were able to beat the market and make a profit, court papers said.