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Bitdefender Internet Security 2019 Review

Bitdefender Internet Security 2019 and the more robust Total Security 2019 both earned high marks in our detection and performance tests, and in third-party testing labs, to earn an overall protection score of 100 percent.

Our Verdict

Bitdefender is one of the top premium internet security suites we reviewed. It’s a good value because of the number of user licenses it comes with, the number of security tools included and how well it performs without causing your devices to slow down.


  • Bitdefender Internet Security 2019 and Total Security 2019 performed very well in both our own malware protection tests and those of other software testing labs.


  • Mobile security is a separate download available only with Total Security and is very limited if you need to protect iOS devices.
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Bitdefender Internet Security 2019 and the more robust Total Security 2019 both earned high marks in our detection and performance tests, and in third-party testing labs, to earn an overall protection score of 100 percent. Both the internet security and premium security suites excel at detecting and removing internet threats and use few computer resources to do so. Bitdefender added extra protection features, including parental controls and a personal firewall, to both programs and includes online backup storage and cell phone protection with its Total Security suite.

Bitdefender Total Security and Internet Security include the same antivirus protection with Bitdefender Antivirus 2019, our top pick for basic antivirus protection. Bitdefender automatically blocks threats attempting to download to your computer from the internet. In fact, it completely scrubs most threats before they can touch your system. Others are sent to the Bitdefender quarantine folder for you to look over before permanently deleting them. After each test, we double checked to make sure Bitdefender didn’t let anything slip through and each time our test computers came back clean.

In our in-house tests, we also attempted to access websites that are known to have malware links, virus downloads or phishing schemes hidden on them. For the most part Bitdefender blocked the threats and displayed a warning message in our browser. We were still able to visit a couple dangerous websites, which is why Bitdefender earned a score of 99 percent.

Looking for a different antivirus? Check out our best antivirus guide. 

Because Bitdefender uses browser extensions to help stop internet threats, and Microsoft Edge doesn’t allow third-party extensions, Bitdefender had more trouble stopping these threats. This is a common occurrence with most internet security programs, so we didn’t dock Bitdefender for this. And any threats that did sneak through were found and destroyed during a virus scans. If you use Microsoft Edge as your primary web browser, we suggest using Trend Micro instead, because its web reputation technology allows it to detect and block threats in Microsoft Edge without the use of a browser extension. But if you use either Mozilla Firefox or Google Chrome, Bitdefender is an excellent choice.

Bitdefender Internet Security 2019 and Total Security 2019 include more features than most computer protection programs and come with a minimum of three and five user licenses, respectively. This makes Bitdefender a good value for computer protection.

Both security suites alert you to threats on social media and scan removable media to block malware entering through USB devices. They also have a gamer mode, sometimes called a silent mode, that postpones full scans and pop-up notifications so you aren’t bothered while watching videos or playing games online. During our performance evaluations, we were able to watch videos and play games with no drag or interruptions even during Bitdefender’s full virus scans. The only real issue was Bitdefender took much longer, nearly 20 minutes, to scan our computers fully while other programs were done in less than five minutes.

Bitdefender Internet Security doesn’t back up your computer information online. You can create a bootable rescue CD that lets you manually boot and rescue your computer after a virus attack, but there is no guarantee all your files will restore as they were prior to the attack. If you upgrade to Bitdefender Total Security, you can back up 2GB of data online, which is enough to save close to 300,000 average-size files.

Internet Security doesn’t protect mobile devices, but again, an upgrade to Bitdefender Total Security 2019 gives you this feature. You will have to download a separate program to your mobile device and designate if you need the Android or iOS version. Also, iOS security doesn’t have as many tools or features as the Android program. For example, Android phones and tablets get web protection, account privacy, battery saver, anti-theft, app lock and a VPN. iPhone and iPad tools are limited to anti-theft, account privacy and the VPN only. It isn’t uncommon for premium security suites to limit protections on mobile devices or have separate downloads. However, Norton, McAfee and Kaspersky let you download the exact same internet security program designed for your computer directly to your mobile device.

Bitdefender Internet Security and Bitdefender Total Security are two of the best internet security suites. Bitdefender’s programs earned a perfect score for overall malware protection, which is an average of the scores from both our in-house tests and several third-party laboratory evaluations. Both programs include a personal firewall and social media protections, plus parental controls to help keep your kids safe online. Though Bitdefender Internet Security doesn’t have online backup services or mobile protection, both features are included with Bitdefender Total Security for a slightly higher cost.