Akamai’s Q3 2012 State of the Internet report is out. Among other things, it points to the continued growth of global attack traffic originating in Russia, the U.S. and Canada. China maintained its position as the biggest attack traffic producer at 33 percent. Port 445 (Microsoft-DS) remained the most targeted port, getting 30 percent of the attack traffic. Port 23 (Telnet) came in second at 7.6 percent, with 4.7 percent of DDoS attacks against the banking industry.”]
Source: https://www.csoonline.com/article/2135412/a-look-at-akamai-s-q3-state-of-the-internet-report.html