ADVANCE FOR USE MONDAY, DEC. 21, 2015 AT 3:01 A.M. EST (2201 GMT) AND THEREAFTER; THIS STORY MAY NOT BE PUBLISHED, BROADCAST OR POSTED ONLINE BEFORE MONDAY, DEC. 21, 2015 AT 3:01 A.M. EST (2201 GMT) - This Wednesday, May 20, 2015 photo shows server banks inside a data center at AEP headquarters in Columbus, Ohio. Like most big utilities, AEP's power plants, substations and other vital equipment are managed by a network that is separated from the company's business software with layers of authentication, and is not accessible via the Internet. Creating that separation, and making sure that separation is maintained, is among the most important things utilities can do to protect the grid's physical assets. (AP Photo/John Minchillo)

Cybersikkerhed: Lær at angribe dig selv

Det gælder i mange af livets forhold, at du bør lære dine svagheder at kende, hvis du vil vurdere din sande styrke. It-sikkerhed er ingen undtagelse. Derfor er det værd at gøre opmærk...