Traditionally, insider traders have updated their techniques and taken advantage of the concentration of digital information to obtain a bounty of non-public information that their analog counterparts in the 1980s could never have imagined. Today, hackers are focusing their data intrusion efforts on corporate gatekeepers such as law firms, newswire services, and other third parties that often possess confidential corporate information for numerous publicly traded companies. With hackers and traders targeting these critical gatekeepers, the SEC itself, the biggest gatekeeper of all, was an obvious target.”]
Source: https://www.darkreading.com/attacks-breaches/what-s-next-after-the-sec-insider-trading-breach-