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Bitdefender Internet Security
Protection for Windows
Best security against all Internet threats on Windows PCs
Choose the best-rated Internet security suite to protect your Windows PC against all online threats.
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- Unbeatable threat detection to keep all Internet threats away
- Privacy firewall to block intrusions and filter your network traffic
- Webcam and microphone protection to prevent eavesdropping
- Secure VPN for complete online privacy, 200 MB/day/device[$IMPROVED$]
Get the best Internet security for Windows
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1-Year Plan
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See Terms of Use below.
2-Years Plan
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3-Years Plan
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Others follow. We lead the way.
PC Mag, January 24, 2024
PC Mag, January 3, 2024
AV Comparatives, January 2024
PC Mag, December 2023
AV-Test, March 2024
How Bitdefender compares to other cybersecurity brands
Bitdefender. Choose What The Experts Use.
You get the most innovative technologies that predict, prevent, detect and remediate even the latest cyber-threats, anywhere in the world.
Rather than trust a name, I study antivirus products yearly to find out who is staying on top of the current threat landscape. For years, Bitdefender has continued to win my trust through their amazing performance and innovations.
Jeremy Holladay
Cybersecurity Analyst & Bitdefender User
The level of protection provided by Bitdefender, along with its minimal footprint, is fantastic.
Jeremy Holladay
Cybersecurity Analyst & Bitdefender User
Bitdefender is excellent protection that is easy to install and use.
Curt Andes
Project Manager, Super Computer System Development & Bitdefender User
One of my co-workers always says, 'Hope is not a plan.' With security, you can't hope to be safe; you must have a plan. For me, Bitdefender is a key part of that plan.
Phillip Jacobs
Lead Machinery Engineer & Bitdefender User
Best security against all Internet threats on Windows PCs
Bitdefender Internet Security has won the Product of The Year award from AV-Comparatives. It protects Windows PCs against all types of online threats, and includes Bitdefender VPN and Bitdefender Safepay for your privacy and secure online banking.
Protection
Bitdefender`s mobile security app keeps your Android device safe from all new and existing online threats.
Complete Real-Time Data Protection [$IMPROVED$]
Absolute power in the most efficient Internet security suite available today. Bitdefender Internet Security works against all e-threats, from viruses, worms and Trojans, to ransomware, zero-day exploits, rootkits and spyware. Your data and privacy are safe.
Network Threat Prevention
Bitdefender Internet Security stops attacks before they even begin. The new cyber threat intelligence technologies included can analyze and identify suspicious network-level activities, and block sophisticated exploits, malware and botnet-related URLs, and brute force attacks.
Advanced Threat Defense
Bitdefender Internet Security uses a technique called behavioral detection to closely monitor active apps. The moment it detects anything suspicious, it takes instant action to prevent infections.
Multi-Layer Ransomware Protection
Bitdefender’s multi-layered approach against ransomware includes a data-protection layer that safeguards your documents, pictures, videos and music against all kinds of ransomware attacks. It works with the Advanced Threat Defense module to protect your most important files from encryption by ransomware.
Vulnerability Assessment [$IMPROVED$]
Scan for security holes and vulnerabilities with just one click. Bitdefender Internet Security checks your PC for outdated and vulnerable software, missing Windows security patches and potentially unsafe system settings, then indicates the best fix.
Web Attack Prevention
Our web-filtering technology ensures that you never land on a harmful website. Find out whether your search results are safe to access before you actually click on a link. Bitdefender Internet Security also blocks all known infected links.
Anti-Phishing
Online scams are on the rise, but our advanced anti-phishing protection easily keeps you out of danger. Bitdefender Internet Security sniffs and blocks websites that masquerade as trustworthy in order to steal financial data such as passwords or credit card numbers.
Anti-Fraud
Our advanced filtering system warns you whenever you visit websites that may try to scam you.
Antispam
Filters irrelevant messages in your Inbox. It’s available for local email clients (Microsoft Outlook, Thunderbird).
Rescue Environment
Some sophisticated malware, like rootkits, need to be removed before Windows starts. When Bitdefender Internet Security detects such threats, it reboots the computer in Rescue Environment for clean-up and restoration.
Performance
Bitdefender Mobile Security for Android reacts instantly to online threats without compromising your system’s performance.
Autopilot
Bitdefender Autopilot is designed to act as a Security Advisor and give you deeper insights into your security posture. Its smart capabilities mean that it can recommend security actions in the context of your system needs and usage patterns.
Bitdefender Photon™
This innovative, exclusive technology helps Bitdefender Internet Security adapt to your system’s hardware and software configuration to save computing resources and improve speed and performance.
Global Protective Network
Most heavy scanning takes place in the cloud, so there is virtually zero impact on your local resources. This means your system’s speed and performance remain unaffected. And your files are always completely private: Bitdefender does not scan the actual contents of your files, and never uploads or stores them in the cloud.
Game, Movie and Work Modes
Bitdefender Internet Security detects when you play, work or watch a movie, so it knows not to bother you with unnecessary requests. Depending on what you are doing, Bitdefender temporarily halts pop-ups, adjusts visual settings, and pauses unimportant background activities so you can enjoy your device to the max.
Battery Mode
This useful, intelligent feature saves battery life for laptops and tablets by temporarily tweaking system settings such as display, system cooling, system updates and Bluetooth connectivity.
Privacy
Bitdefender’s mobile security app takes care of your online privacy and personal information.
Bitdefender VPN [$IMPROVED$]
With Bitdefender VPN, you can stop worrying about privacy on the web. It protects your online presence by encrypting all Internet traffic. Bitdefender Mobile Security for Android includes up to 200 MB per day of encrypted traffic for your Android device.
Anti-tracker
The Anti-tracker extension blocks trackers that collect your data, and it allows you to view and manage this information on each website you visit. It keeps your browsing data private and enhances performance by loading webpages faster.
Microphone Monitor
Regain control over your own devices with Microphone Monitor. Use it and you can see what apps have access to your device’s microphone and when.
Webcam Protection
Protect your privacy and prevent webcam leaks. Webcam Protection notifies you when apps try to access your webcam, and lets you block unauthorized access.
Safe Online Banking
Bank and shop from a unique, dedicated browser that secures your transactions to prevent fraud. Bitdefender Safepay can now also automatically fill out credit card details in billing fields.
Parental Control
Parental Control offers digital help to parents and extra online safety to children. Filter out inappropriate content and limit screen time. Log in remotely to Bitdefender Central to monitor your kids’ online activities.
Privacy Firewall
With Bitdefender Internet Security, you get a powerful layer of network protection, so your personal information stays safe from hackers and data snoops.
Wi-Fi Security Advisor
Assess the security of your Wi-Fi network and router, no matter where you connect.
Social Network Protection
Stay safe from malicious links and any online threats your friends unwittingly pass on to you via social networks.
File Shredder
Use this tool when you wish to delete a file for good and leave no traces that it ever existed on your PC.
Compare Bitdefender Products
Compare our award-winning products and get the best real-world protection, so you can keep doing the things that matter while we handle security.
Bitdefender Total Security
5 Devices
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Plus applicable sales tax.
See Terms of use below.
Bitdefender Internet Security
3 Devices
{PriceComparison}
Plus applicable sales tax.
See Terms of Use below.
Bitdefender Antivirus Plus
3 Devices
{PriceComparison}
Plus applicable sales tax.
See Terms of Use below.
System Requirements
Bitdefender INTERNET SECURITY
SYSTEM REQUIREMENTS
Operating System: Windows 7 with Service Pack 1, Windows 8.1, Windows 10 and Windows 11
Memory (RAM): 2 GB
Available free hard disk space: 2.5 GB free space
*System performance may be affected on devices that have old generation CPUs
SOFTWARE REQUIREMENTS
Internet Explorer version 11
Bitdefender Central
SOFTWARE REQUIREMENTS
Supported browsers:
Chrome 56 and later
Firefox 52 and later
Microsoft Edge
Frequently asked questions
How does Bitdefender Internet Security protect me against cyber threats?
Bitdefender Internet Security provides the best protection in the industry, as proven by the last 10 years of independent test scores.
Bitdefender Internet Security has won the Product of The Year award from AV-Comparatives.
You get a wealth of advanced security and privacy features for Windows - plus many bonus features, including secure VPN, Firewall and Parental Control.
Does Bitdefender Internet Security protect me against ransomware?
Bitdefender Internet Security offers unbeatable ransomware protection that keeps your documents, pictures and videos safe from all known and emerging cyber threats.
This security solution can identify even the latest ransomware families through the use of multiple layers of protection.
What type of devices and operating systems does Bitdefender Internet Security cover?
Why do I need Bitdefender Internet Security on Windows 10?
How does Bitdefender Internet Security compare to other Bitdefender security products?
Bitdefender Internet Security is a security software designed especially for Windows PCs.
Need security for all operating systems? Bitdefender Total Security offers cross-platform protection that covers Windows PCs, Macs, Smartphones and Tablets running Android or iOS for up to 10 devices.
Need more devices? Bitdefender Family Pack includes Bitdefender Total Security for up to 15 devices.
Need unlimited VPN traffic? Bitdefender Premium Security includes Bitdefender Total Security, Bitdefender Premium VPN for Unlimited Traffic & Premium Support.
Do I get a VPN with my Bitdefender Internet Security subscription?
Bitdefender Internet Security comes with a basic version of Bitdefender VPN that includes a generous amount of traffic (200 MB/ day, a total of 6GB/ month), free of charge.
If you need unlimited traffic, add Bitdefender Premium VPN to your Bitdefender subscription.
Can I try Bitdefender Internet Security before buying?
How do I activate Bitdefender Internet Security?
I changed my computer. How do I reinstall Bitdefender Internet Security?
Do I have to renew Bitdefender Internet Security?
To help you stay protected, Bitdefender Internet Security can be purchased as a subscription that will automatically renew if you enrolled at the time of purchase.
You can check and modify the status any time in your Central Account (My Subscriptions -> My Payments) if you activated the subscription on the same email address used for purchase.
If you purchased Bitdefender Internet Security, you can choose to renew early or purchase for another year (or upgrade) close to the expiration date, depending on the time left on your subscription.
In any case, starting 30 days before your expiration date, you will receive emails informing you that your subscription is about to expire and describing the next steps.
I have not received the activation code. What should I do?
Confirmation emails are typically received shortly after an order is placed. Make sure you also check your Promotions and Spam folders if your email client categorizes emails automatically. For more information, check this Support article.
More helpful articles and video tutorials are also available in Bitdefender Support Center.
Bitdefender Central
Security everywhere you go
All you need to know about Bitdefender Central
- Activate Bitdefender protection on your devices
- Manage from your browser on iOS or Android phone
- Scan your network from Bitdefender Central mobile app
- Get security updates 24/7
- Get direct access to our support team
Terms of use
Auto renewal terms
- Your subscription automatically begins at the purchase date;
- By subscribing, you are purchasing a recurring subscription which will automatically renew;
- The Bitdefender Auto Renewal Plan is designed to save you time, effort, and minimize your vulnerability risk by extending your subscription automatically before you run out of protection.
Here is what the Bitdefender Auto Renewal Plan means for you
- Continuous protection so that you never have to worry about your subscription running out before you renew manually;
- Free upgrades whenever a new version of Bitdefender comes out;
- Peace of mind that your devices are always protected;
- Save time while we are taking care of the automatic renewal process;
- Opt out at any time so that you are always in control of your renewal options;
- 24/7 security all-subscription long without interruption;
- The price offered is valid for the first year of subscription. After that, your subscription will be billed at the applicable renewal price which may be higher than the initial purchase price;
- If a discount is presented, it describes the difference between the first term and renewal term subscription prices (e.g., first year price vs. each year thereafter). The prices are subject to change, but Bitdefender will send a prior notification by email, before the automatic renewal takes place. You will receive an email notification before you will be billed, along with information regarding pricing and the extension of your subscription duration.
Affirmative consent
- Your subscription automatically begins at the purchase date;
- By subscribing, you are purchasing a recurring subscription which will automatically renew.
How to cancel + email address cancelation support
- You may cancel your automatically subscription from Bitdefender Central or by contacting Customer Support at: [email protected];
- You may obtain a refund by contacting [email protected] within 30 days of your initial purchase or of the automatic renewal date.
Your subscription may include product, service and/or protection updates and features that may be added, modified or removed subject to Bitdefender Subscription Agreement and Terms and Conditions for Home Users and Privacy Notice.