Banker Trojan

In computer and network security terminology, a Banker Trojan-horse (commonly called Banker Trojan) is a malicious program used in an attempt to obtain confidential information about customers and clients using online banking and payment systems.

QoS(Quality of Service)

Short for Quality of Service, a networking term that specifies a guaranteed throughput level. One of the biggest advantages of ATM over competing technologies such as Frame Relay and Fast Ethernet, is that it supports QoS levels. This allows ATM providers to guarantee to their customers that end-to-end latency will not exceed a specified level.

QoE(Quality of Exerience)

Short for Quality of Experience in telecommunications terminology, it is a measurement used to determine how well that network is satisfying the end user's requirements. In contrast to Quality of Service (QoS) a measurement of network operating conditions such as noise, crosstalk, or lost or dropped packets, in telecommunications terminology, QoE takes into consideration the end-to-end connection and applications that are currently running over that network connection and how multimedia elements such as Internet video or IPTV networks are satisfying or meeting the end user's requirements.
The relationship between a performance-based QoS parameter (such as packet loss) has a resulting effect on the end user's QoE since a high network performance is required to meet QoE objectives.

spear phishing

A type of phishing attack that focuses on a single user or department within an organization, addressed from someone within the company in a position of trust and requesting information such as login IDs and passwords. Spear phishing scams will often appear to be from a company's own human resources or technical support divisions and may ask employees to update their username and passwords. Once hackers get this data they can gain entry into secured networks. Another type of spear phishing attack will ask users to click on a link, which deploys spyware that can thieve data.