Cyber warfare is heating up in the United States and throughout the world, with “distributed denial of service” attacks up significantly in the third quarter against mortgage lenders and other financial services providers and corporate entities, according to a report released this week by Prolexic Technologies, a vendor of DDoS protection services. During the third quarter, Prolexic mitigated seven DDoS attacks of more than 20 gigabits per second (Gbps) for different clients across multiple industries, the firm said. A number of these attacks leveraged a toolkit called “itsoknoproblembro” that has been used in some recent high-profile DDoS attacks. In a DDoS attack, one or more hackers deploy...