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Total Defense
Premium Internet Security
Premium Internet Security provides simple, smart, and reliable protection from viruses, spyware, and malware on up to 5 of your smartphones, tablets, desktops, and laptops.
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Our other popular internet security software choices, to keep you and your devices safe.
Ultimate Internet Security
Protect everyone on every device in your home - Ultimate is an easy-to-use, all-in-one Internet Security suite that protects you, your family, and up to 10 of your devices from harmful viruses and the latest online threats.
Essential Anti-Virus
Anti-Virus security ensures you’re totally covered keeping your devices safe from malware, spyware, ransomware, and harmful viruses.
Award winning internet security software
Powerful virus detection that doesn’t slow you down.
Learn more about our highly rated malware protection or get started today with a free 30-day trial of Total Defense Internet Security, with no obligation to buy.
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AV Comparatives Advanced Plus
AV Comparatives Advanced Plus
VB100 Certified
AV Comparatives Advanced Plus
OPSWAT Certified
AV Comparatives Advanced Plus
We will keep you virus-free guaranteed
An exclusive automatic renewal service benefit.
When you choose Total Defense, you’re safeguarded with award-winning, multi-layered virus protection technology. Our powerful security lets you confidently shop, bank and browse online. In fact, we’re so certain we can protect you, if you’re running a Total Defense Security Product and a virus slips past our powerful protection, our expert technology advisors will remove the virus from your device for free. In the unlikely event the virus can’t be removed, we will give you your money back.
»Important terms and offer detailsWe’ve Got You Covered
Over 20 years of Dedication
We are committed to your cybersecurity, from installing the software effectively to helping recovery in the event of a breach.
Advanced Threat Protection
A good offense is the best defense! Real-time and on-demand malware scanning engines provide powerful proactive protection.
Award Winning Security
Powerful protection, securing all entry points, wherever you are, whatever type of device you’re using to access the internet.
Customer Commitment
Our US-based support team is focused on keeping you and your family safe in the ever changing connected world.
Why Total Defense Internet Security >Defend the Defenseless
Total Defense has been a proud supporter of the National Center for Missing & Exploited Children for over 15 years.
Total defense has supported NCMEC in it’s mission to help find missing children, reduce child sexual exploitation and prevent child victimization. We provide quarterly monitary support for NCMEC’s efforts to provide important programs that assist missing and exploited children nationwide.
To learn more about NCMEC, visit www.missingkids.org or see NCMEC on Twitter and Facebook.

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Total Defense
Internet Security and Safety Center
Helpful tips and articles with practical steps you can follow to improve your online safety
Total Defense Security Tip of the Day
12.22.25
Google Nest security tip: enable voice match to stop unauthorized access
Smart speakers are fantastic for busy households, but they come with a big privacy risk: if anyone can shout a command, anyone can access your private information. A guest could ask your speaker about your calendar, your next appointment, or even your saved addresses—all sensitive data linked to your Google Account.
Fortunately, Google Nest and Google Home devices offer a powerful security feature that locks down personal results to a single user: Voice Match.
Unlike other smart speakers that may not differentiate between users, Google Nest has a feature that actively learns your voice over time. Once your device knows your voice, no one else will be able to use your Google Home to access your stored information. This simple setting transforms your shared device into a personal assistant for only authorized users.
Why Voice Match is Essential Security
If you are the primary user who set up the device, your Google Assistant is linked directly to your Google ecosystem—your Gmail, Google Calendar, Google Photos, and even any payment methods stored for quick ordering.
Without Voice Match enabled, if someone simply says, "Hey Google, read my calendar," the device will happily share your private schedule with whoever spoke. That's a huge security failure.
When you set up Voice Match:
- You Block Snoops: The Assistant will not respond with your personal results (like calendar events or private emails) to a voice it doesn't recognize.
- You Control Access: This prevents unauthorized third parties—from nosy neighbors to mischievous kids—from accessing your data through the device.
- You Get Personalized Results: While security is key, the bonus is convenience. You get tailored music playlists, commute times, and personalized routines just for you.
Voice Match is also the key to ensuring that shared devices (and up to six family members can set it up per home) are personalized but secure for everyone.
Your Active Solution: Set Up Voice Match Now
The setup process is quick, and you need to do it using the Google Home app on your phone. Make sure you are connected to the same Wi-Fi network as your Nest device before starting.
To set up Voice Match:
- Open the Google Home App on your phone or tablet.
- Access Your Profile: Tap your Profile Picture or initial in the upper right corner.
- Go to Assistant Settings: Tap Assistant settings or Settings.
- Find Voice Match: Look for and tap Hey Google & Voice Match (or simply Voice Match).
- Get Started: Follow the on-screen prompts. You will be asked to say a few phrases ("Hey Google," "Okay Google") multiple times. This allows the device to create your unique voice model.
- Confirm Devices: You will be prompted to select which devices in your home you want to link to your voice. Ensure your device is checked and tap Continue.
Once completed, your voice is registered, and your device will actively use your unique voice pattern to decide whether to unlock your personal information. Take control of your smart speaker today and make sure it only listens to your commands!
Fake retail sites are everywhere: How to spot counterfeit Black Friday deals
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60 Day Money Back Guarantee
Money Back Guarantee Program
Total Defense is committed to helping you with your refund. If our product does not meet your expectations for any reason, we will provide a full refund within 60 days of your purchase.
Virus Protection Assurance Program
Virus Protection Assurance Program
An exclusive benefit for customers enrolled in the Automatic Renewal Service.
When you choose Total Defense, you’re safeguarded with award-winning, multi-layered virus protection technology. Our powerful security lets you confidently shop, bank and browse online. In fact, we’re so certain we can protect you, if you’re running a Total Defense Security Product and a virus slips past our powerful protection, our expert technology advisors will remove the virus from your device for free. In the unlikely event the virus can’t be removed, we will give you your money back.
»Important terms and offer detailsFree US-Based Support Team
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The VB100 Award
VB100 Certification
The VB100 award is a certification of products which meet the basic standards required to be recognized as legitimate and properly functioning anti-malware solutions.
To display a VB100 logo, a product must:- Prove it can detect 100% of malware samples listed as ‘In the Wild’ by the WildList Organization
- Generate no false positives when scanning an extensive test set of clean samples.
- All this must be done with default, out-of-the-box settings in the VB lab environment.







