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PayPal SMS Security Key

A service that enables PayPal customers to use their mobile phones to authenticate transactions through a service that lets customers use SMS messaging to get a randomly generated access code to log into their accounts. The PayPal SMS Security Key is an extension of PayPal's current Security Key service, which uses a hardware token. However, unlike the current service, which charges customers $5 for the token, the new service is free. Customers will have to pay their carriers' charges for SMS services.

The Problem with Statistics

We look at a few of the more troubling aspects of statistics and how these may be used to advance an agenda or skew the facts to someone's... Read More »

29 Free Android Apps for Cash-Strapped Students

From wacky alarm clocks to lecture hall tools and after class entertainment, these Android apps are a good fit for a student's life and budget. Read More »

Sharing Threat Intelligence

A growing number of startups make the sharing of threat intelligence a key part of their solutions. Read More »

The 7 Layers of the OSI Model

The Open System Interconnection (OSI) model defines a networking framework to implement protocols in seven layers. Use this handy guide to compare... Read More »

Network Fundamentals Study Guide

Networking fundamentals teaches the building blocks of modern network design. Learn different types of networks, concepts, architecture and... Read More »

Computer Architecture Study Guide

This Webopedia  study guide describes the different parts of a computer system and their relations. Read More »