Security researchers have discovered a new distributed denial of service (DDoS) method that requires less effort to launch large-scale attacks that can bring down servers or firewalls from a single laptop. The new method of launching DDoS attacks called BlackNurse was discovered by researchers at the Security Operations Center of the Danish telecom operator TDC (TDC SOC). It operates by using attacks based on low volume Internet Control Message Protocol (ICMP) to overload firewalls to the point where they shut down. BlackNurse also specifically targets firewalls made by Cisco, PaloAlto and other companies that are vulnerable to a "ping flood attack"… [Continue Reading]