Eric GeierContributing Writer, PCWorld

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Eric Geier is a freelance tech writer as well as the founder of NoWiresSecurity, a cloud-based Wi-Fi security service, and On Spot Techs, an on-site computer services company.

VeriFone SAIL Review: Mobile Payment Processor Has Some Impressive Features

VeriFone, the newest contender in the mobile payment processing arena, offers a strong product.

PayAnywhere Review: A Feature-Rich Mobile Payment Processor

PayAnywhere is a good choice if you're looking for a simple processor or even a POS-like system that supports cash drawers and can print receipts.

Intuit GoPayment Review: Processing System Includes a Sturdy Card Reader

This is one of the best services for printing receipts on Android devices, but it can't track cash payments.

BullGuard Mobile Security 10 Review: Solid Mobile Antivirus with Parental Controls

BullGuard provides good antivirus and parental controls, but the app's backup features could be improved.

Windows 8 Security: What's New

Windows 8 is a major OS overhaul, but some of the most important additions might be the ones you can't see. Here's a look at Windows 8's new security tools and features.

5 Great Android Apps for Cloud Admins

Here's a great collection of tools for anyone responsible for administering servers or services in the cloud.

Your Printer Could Be a Security Sore Spot

A poorly protected office printer can cause major security headaches. Here's what the threats are, and how you can combat them.

How to Encrypt Your Email

Data encryption is a complicated subject, but our top-level overview and general guide to email encryption will help you understand the basics. Learn to encrypt your Internet connection, sent and stored email with this basic tutorial.

How to Choose a Cloud Hosting Service

Here's everything you need to know about cloud computing, plus reviews of three service providers.