Espiar por detrás de un hombro para tratar de ver
información interesante. Es un método comúnmente usado para acceder cuentas de
otras personas.
http://www.segu-info.com.ar/glosario/
Shoulder surfing is using
direct observation techniques, such as looking over someone's shoulder, to get
information. Shoulder surfing is an effective way to get information in crowded
places because it's relatively easy to stand next to someone and watch as they
fill out a form, enter a PIN number at an ATM machine, or use a calling card at
a public pay phone. Shoulder surfing can also be done long distance with the
aid of binoculars or other vision-enhancing devices. To prevent shoulder
surfing, experts recommend that you shield paperwork or your keypad from view
by using your body or cupping your hand.
http://searchsecurity.techtarget.com/
In computer security,
shoulder surfing refers to using direct observation techniques, such as looking
over someone's shoulder, to get information. It is commonly used to obtain
passwords, PINs, security codes, and similar data.
https://en.wikipedia.org/wiki/Shoulder_surfing_%28computer_security%29