DIY-IT

David Gewirtz

In addition to hosting the ZDNet Government and ZDNet DIY-IT blogs, CBS Interactive's Distinguished Lecturer David Gewirtz is an author, U.S. policy advisor and computer scientist. He is featured in The History Channel special The President's Book of Secrets, is one of America's foremost cyber-security experts, and is a top expert on saving and creating jobs. He is also director of the U.S. Strategic Perspective Institute as well as the founder of ZATZ Publishing. David is a member of FBI InfraGard, the Cyberwarfare Advisor for the International Association for Counterterrorism & Security Professionals, a columnist for The Journal of Counterterrorism and Homeland Security, and has been a regular CNN contributor, and a guest commentator for the Nieman Watchdog of the Nieman Foundation for Journalism at Harvard University. He is the author of Where Have All the Emails Gone?, the definitive study of email in the White House, as well as How To Save Jobs and The Flexible Enterprise, the classic book that served as a foundation for today's agile business movement.

Latest Posts

How much does it cost to own a small fleet of Macs? Total cost of ownership explained

Macs may cost quite a bit to buy, but as David Gewirtz discusses, they don't necessarily cost all that much to own.

August 2, 2021 by David Gewirtz in Apple

InMotion Hosting review: Capable web hosting with a 90-day guarantee

InMotion is a well-known web hosting provider. But how does it perform? We take an in-depth look at the features, capabilities, and performance of this popular service.

July 27, 2021 by David Gewirtz in Cloud

Elegoo Mars 2 Pro review: At about $300, this produces amazing 3D prints

We take a hard look at the Elegoo Mars 2 Pro. Will it be just as good as Elegoo's previous machines? Will it be better? You'll have to read the article to learn more. But here's a hint: it's pretty sweet.

July 27, 2021 by David Gewirtz in 3D Printing

The best Mac VPNs: VPN services for your Apple devices

Are you looking for a VPN service provider that integrates well into the Apple ecosystem? In this article, we spotlight three providers who offer Mac, iPhone, and iPad clients.

July 27, 2021 by David Gewirtz in Security

The best cheap VPNs: VPN services under $2 per month

You don't need to spend the big bucks for VPN protection. We look at four VPN services that cost under $2 a month. Are they just as good as the more expensive VPN providers? Well... not necessarily.

July 26, 2021 by David Gewirtz in Security

How I just lost three years of iPhone contacts (what not to do)

The one where David loses all his iPhone contacts, whines about it, and tells you how to avoid a similar fate.

July 22, 2021 by David Gewirtz in Apple

Creality Sermoon D1 review: An industrial-level 3D printer for under $700

In this in-depth first-look review, David Gewirtz takes a hands-on look at a lesser-known, more industrial 3D printer from Creality, a vendor of the enormously popular CR-10 and Ender machines. Does the oddly-named Sermoon make the grade? We'll let you know.

July 19, 2021 by David Gewirtz in 3D Printing

The fastest VPNs: Top services tested and compared

We don't just test VPN provider performance in this in-depth analysis. We go out onto the internet, gather performance data from all across the web, and let you know which provider -- according to VPN performance tests independently conducted by eleven different publications -- has the best overall and most consistent performance.

July 16, 2021 by David Gewirtz in Security

How to bypass Windows 11 limits and install on almost any old PC

Kids, don't try this at home!

July 8, 2021 by David Gewirtz in Windows 11

Migrating to M1 Macs: How I'm upgrading my small fleet of older Apple desktops and laptops

With Apple phasing out Intel-based Macs, some older models won't be able to run MacOS Monterey when it comes out in September. David Gewirtz shows how he's preparing his small fleet of Macs for these changes.

July 6, 2021 by David Gewirtz in Hardware

I don't care what you say about the M1: the 2018 Intel Mac mini is still a beast

Even though we've all been talking about how impressive the M1 Macs are, we show an example of just how capable a three year old Mac mini is, even today.

July 1, 2021 by David Gewirtz in Hardware

What Windows 11 means: We'll be stuck with millions of Windows 10 zombies

Some machines will be left behind despite owners' preferences. Many others will be abandoned because their owners either don't know how, don't care, or refuse to upgrade.

June 28, 2021 by David Gewirtz in Enterprise Software