PhoneSweep: The Corporate War Dialer

by Greg Hodes
Sept. 1, 2017 0 comments SANS Institute firewall tools

Expensive and intimi dating firewa lls that guard your various public gateways can lead to a false sense of protection against outsider access to your computing resources. Almost no one contemplates the fact that firewall s are most easily circumven ted by taking a back door -- a poorly secured dial - up server or an inadequately policed desktop modem -- to get into the network (McCl ure and Scambray).

https://www.sans.org/reading-room/whitepapers/tools/phonesweep-corporate-war-dialer-401