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Total Defense makes internet security easy for you and tough on destructive malware. We don’t just protect devices, we protect people.
Our software works hard so you don’t have to—no complex questions or specialized knowledge required.
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Our virus and malware protection is put through the toughest tests to ensure your are protected.
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Protection for all the devices in your home
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.
- Shop, bank and explore your social network without worry
- Protect your information from cyber criminals when you’re shopping and banking online
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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We always strive to create the best customer service experience and our customers agree. Total customer satisfaction is our ultimate goal.
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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
05.03.25
How to use guest mode for Chromecast audio
Hosting a gathering can be a blast, especially when it comes to setting the right mood with music. But if you’re worried about sharing your Wi-Fi password with guests, there’s a simple solution: use Guest Mode on your Chromecast Audio! This feature allows your friends to connect to your Chromecast-enabled audio devices without needing your Wi-Fi password. Let’s dive into how to set it up and make your next gathering a hit!
Why Use Guest Mode?
Before we get into the nitty-gritty of setting up Guest Mode, let’s talk about why it’s a great option for hosts:
- Security: Keeping your Wi-Fi password private is a smart security practice. Guest Mode allows you to share your music without compromising your network’s security.
- Convenience: With Guest Mode, your friends can easily connect to your Chromecast Audio and play their favorite tunes without any hassle. No more awkward moments trying to remember your Wi-Fi password!
- Control: You can still maintain control over your audio devices. Guests can connect and play music, but they won’t have access to your entire network.
How to Enable Guest Mode on Chromecast Audio
Ready to set up Guest Mode? Follow these simple steps to get started:
Step 1: Open the Google Home App
First, make sure you have the Google Home app installed on your smartphone or tablet. Open the app and ensure you’re logged into the same Google account that’s linked to your Chromecast Audio.
Step 2: Select Your Chromecast Device
Once you’re in the app, you’ll see a list of your connected devices. Find and select your Chromecast Audio device from the list. This will take you to the device settings.
Step 3: Access Device Settings
In the device settings menu, look for the option labeled “Device settings.” Tap on it to access more options related to your Chromecast Audio.
Step 4: Enable Guest Mode
Scroll down until you find the “Guest mode” option. Toggle the switch to enable it. Once Guest Mode is activated, your Chromecast Audio will be ready to accept connections from guests.
Step 5: Share the Guest Mode Code
When Guest Mode is enabled, your Chromecast Audio will generate a unique code. Share this code with your guests so they can connect to your device. They’ll need to enter this code in their Google Home app to start casting music.
Step 6: Enjoy the Music!
Now that Guest Mode is set up, your friends can connect to your Chromecast Audio and play their favorite songs. Sit back, relax, and enjoy the tunes without worrying about your Wi-Fi security!
Using Guest Mode for your Chromecast Audio is a fantastic way to keep your Wi-Fi network secure while still allowing your guests to enjoy the music. It’s easy to set up and provides a seamless experience for everyone at your gathering. So, the next time you host a party, don’t forget to enable Guest Mode and let the good times roll!
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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

Need Assistance?
US-Based Support • Weekdays 9am – 5:30pm, Eastern Time USA
Technical Support
Call 1-866-305-7989
or Email
Free technical support includes:
- Download and installation
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- Updates and upgrades
Customer Care
Call 1-877-906-8816
or Email
Customer care assists with:
- Sales and orders
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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.