Try our Best Antivirus Protection Free for 30 Days
Free Trial DownloadStart your Free 30 day, no credit card needed, no hassle trial today.
Secure your digital life.
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.
Virus-free. Hassle-free. Worry-free.
Security designed for people, around people.
VB100 Certified
Our virus and malware protection is put through the toughest tests to ensure your are protected.
Learn More >
Free US Tech Support
Our friendly US-based team is standing by to assist with customer care & technical support.
Learn More >
Money Back Guarantee
If you’re not completely satisfied, we’ll refund your money within 60 days of purchase.
Learn More >
Virus-Free Guarantee
We’re so confident in our virus protection, we will remove it for free or give your money back.
Learn More >
Total customer satisfaction is our ultimate goal
Don’t take our word for it…
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.
Free Trial Download
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.

Rated #1 anti-virus software company on ConsumerAffairs.com
Over 2,000 customer reviews
We always strive to create the best customer service experience and our customers agree. Total customer satisfaction is our ultimate goal.
Read reviews from our customers>


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
11.27.25
The hidden threat: watch out for Google Chrome extension malware
Your web browser, like Google Chrome, is your main window to the internet. To make life easier, you probably use extensions—those handy little tools that block ads, check grammar, or manage your passwords. They’re super convenient, but they also represent one of the sneakier security risks on your computer.
Think of an extension as a mini-program that runs constantly within your browser. Because Google Chrome is a trusted application on your operating system, both Chrome itself and its extensions can run code without much interference from your computer’s defenses. This is great for functionality, but if an extension is malicious, it can run completely unchecked.
The Silent Spy in Your Browser
Some extensions are Trojan horses—they promise one thing (like a theme or a helpful shortcut) but secretly do something dangerous in the background. They can be installed directly by hackers or, sometimes, a legitimate, harmless extension can be bought by a malicious actor and then updated with harmful code.
Once installed, these malicious extensions can:
- Track Your Browsing: They monitor every website you visit, potentially logging your activity and harvesting data.
- Inject Ads: They force annoying, unwanted advertisements onto every web page you visit, often slowing down your browser and exposing you to further risk.
- Steal Data: The most dangerous ones can capture keystrokes, steal session cookies (allowing them to hijack your accounts), or read the private data you enter into web forms.
Because these bad actors live inside your trusted browser, your operating system and even some basic antivirus software might not flag them as a problem, allowing them to spy on you freely.
Your Active Defense: Screen Everything!
You don't have to give up extensions, but you must become an active gatekeeper. Follow this checklist before downloading any new browser tool:
1. Check the Publisher's Name
Who made this? A legitimate, popular extension will be published by a company or developer you can easily Google, often with a professional website and history. Be suspicious of:
- Unusual or Generic Names: Extensions published by developers with odd names, random characters, or names that sound overly generic (like "Super Utility 2025").
- No Profile History: If the publisher profile shows only one product and has no social media presence or website, move on.
2. Scrutinize User Reviews and Ratings
Don't just look at the star rating; read the most recent reviews!
- Look for Red Flags: If you see recent reviews complaining about strange pop-ups, slow browser speed, or mentions of suspicious behavior, avoid it.
- Check the Numbers: Does the extension have hundreds of thousands of users but only ten reviews? That's a sign that the count might be fake. Look for extensions with a high number of users AND a consistent volume of quality reviews.
3. Review the Requested Permissions
When you install an extension, your browser shows you a list of permissions it needs. If a simple calculator extension asks permission to "Read and change all your data on all websites," that is a huge red flag! Only grant permissions that make logical sense for the extension's stated function.
Be an active defender of your browsing privacy. Keep your eye out for unusual names, odd publishers, and bad user reviews before downloading anything!
Fake retail sites are everywhere: How to spot counterfeit Black Friday deals
Questions? Our friendly award winning US-based support team is happy to help and it’s free.
1-877-906-8816 Weekdays 9am – 5pm, Eastern Time USA

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 – 5pm, Eastern Time USA
Technical Support
Call 1-866-305-7989
or Email
Free technical support includes:
- Download and installation
- Activation and configuration
- Removal of conflicting AV software
- Updates and upgrades
Customer Care
Call 1-877-906-8816
or Email
Customer care assists with:
- Sales and orders
- Account information
- Renewals
- Refunds
- Rebates
- Billing Inquiries
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.







