The Internet’s biggest-ever spam surge in a single day boosted total spam volumes 445 percent in a one-day period at its peak on Thursday morning. The surge was an example of the recent trend of junk e-mail using PDF attachments as a way of getting around spam filters. The massive size of the campaign is unusual, according to Sophos Labs Director Mark Harris. Prime Time Group, a Florida-based firm involved in wireless and retail interests, saw its share price rise 84 percent from its Monday value, before plummeting again.”]
Source: https://www.csoonline.com/article/2121574/spam-surge-sways-stock-market.html