Bitdefender and Norton are consumer antivirus suites that both hold top ratings from AV-TEST and AV-Comparatives, and in 2026 their malware protection is effectively tied: AV-Comparatives measured 99.5% for Bitdefender and 99.3% for Norton against 400 live attacks. What separates them is speed, phishing protection, plan contents and the price you pay after the first year.
Our verdict (September 2026): for most households Norton 360 Deluxe is the better buy. It had the lighter footprint and the higher phishing block rate in 2026 lab tests, and its 5-device plan includes a VPN, 50 GB of cloud backup and parental controls. Choose Bitdefender for the stronger record against targeted attacks and false alarms, or for the lower yearly price once both have renewed. If you are one careful Windows user, free Microsoft Defender may be enough; the lab results below show what you would give up.
Bitdefender vs Norton at a glance (checked against the labs’ and vendors’ own pages on 29 September 2026)
| Bitdefender | Norton | |
|---|---|---|
| Company | Bitdefender, headquartered in Bucharest, Romania | A brand of Gen Digital Inc., which also owns Avast, AVG and Avira |
| Malware engine | Its own, also licensed to G Data, Total Defense and VIPRE | The Avast engine, shared with Avast and AVG |
| Real-world protection (AV-Comparatives, Feb to May 2026) | 99.5% (398 of 400 attacks) | 99.3% (397 of 400 attacks) |
| System impact (AV-Comparatives, April 2026, lower is better) | 9.6 | 5.3 |
| Phishing sites blocked (AV-Comparatives, 2026) | 87% | 93% |
| Targeted attacks stopped (AV-Comparatives, 2025) | 15 of 15 | 13 of 15 |
| Cheapest paid plan | Antivirus Plus, 1 device: $24.99 first year, $49.99 at renewal | AntiVirus Plus, 1 device: $19.99 first year, $59.99 at renewal |
| 5-device plan | Total Security: $59.99 first year, $109.99 at renewal | Norton 360 Deluxe: $29.99 first year, $124.99 at renewal |
| VPN | 200 MB per device per day below Premium Security; unlimited from Premium Security | Included from Norton 360 Standard upward; no fixed data cap published |
| Money-back window | 30 days after purchase or after an automatic renewal | 60 days |
| Free version | Bitdefender Antivirus Free (Windows only) | None |
Who makes Bitdefender and Norton?
Bitdefender is a Romanian security company with its corporate headquarters in Bucharest. It sells home suites under the Bitdefender name and business protection under the GravityZone name, and it licenses its malware engine to other vendors: AV-Comparatives notes that “G Data, Total Defense, and VIPRE use the Bitdefender engine.”
Norton is a brand of Gen Digital Inc., formerly NortonLifeLock, which completed its acquisition of Avast on 12 September 2022. Gen’s annual report for fiscal 2026 lists Norton, Avast, AVG, Avira, LifeLock and CCleaner among its trademarks, and AV-Comparatives records that “AVG and Norton use the Avast engine.” So Norton, Avast and AVG share one detection engine: choosing between those three is choosing features and a price, not a different line of defense. Bitdefender against Norton is a genuine choice between two engines.
Which protects better? Bitdefender vs Norton lab results for 2026
Neither, by any margin you would notice. In the most recent Windows tests from AV-TEST and AV-Comparatives, Bitdefender and Norton sit in the same top tier, and the gaps between them come down to one or two samples out of hundreds. Every figure below links to the lab’s own report and names the edition, so each number can be checked.
| Independent test (edition) | Bitdefender | Norton |
|---|---|---|
| AV-Comparatives Real-World Protection, Feb to May 2026, 400 live attacks | 99.5% protected, 5 false positives | 99.3% protected, 5 false positives |
| AV-Comparatives Malware Protection, March 2026: offline detection | 97.6% | 96.3% |
| Same test: online protection rate and false positives | 99.94%, 4 false positives | 99.97%, 9 false positives |
| AV-TEST Windows 11, May and June 2026: 0-day malware (224 samples) | 100% and 100% | 100% and 99.8% |
| Same test: widespread malware (11,772 samples) and false detections | 100%, 0 false detections | 100%, 0 false detections |
| Same test: protection, performance and usability scores | 6.0, 6.0 and 6.0 (TOP PRODUCT) | 6.0, 6.0 and 6.0 (TOP PRODUCT) |
| AV-Comparatives Anti-Phishing Certification 2026, 275 phishing URLs | 87% blocked, 0 false alarms | 93% blocked, 0 false alarms |
| AV-Comparatives Advanced Threat Protection 2025, 15 targeted attacks | 15 blocked (Gold award) | 13 blocked (Silver award) |
| AV-Comparatives Summary Report 2025 | Top-Rated Product | Top-Rated Product |
| AV-TEST Awards 2025 | Best Protection for consumer users (sole winner); Best Android Security | Best Usability for consumer users (shared with several products) |
Which product was tested matters. The labs enter different Norton editions: AV-TEST tested Norton 360, AV-Comparatives’ main series tested Norton AntiVirus Plus, and its phishing test used Norton 360 Deluxe. Bitdefender entered Total Security in every Windows test. Both vendors list the same antivirus, malware and ransomware protection on every paid plan, so the core results carry across each brand’s plans; extras such as the VPN or parental controls do not.
Read the table as a tie on protection with three real differences. Norton blocked more phishing sites (93% against 87%). Bitdefender stopped all 15 targeted attacks in 2025 against Norton’s 13, and raised fewer false alarms in the March 2026 malware test (4 against 9). And Bitdefender Total Security was AV-TEST’s only Best Protection winner for consumer users in 2025. In the Real-World test, AV-Comparatives puts both products, along with Microsoft Defender, in its top protection cluster.
Which slows your computer down less?
Norton, on current evidence. AV-Comparatives’ April 2026 performance test times everyday tasks on a Windows PC with each product installed: file copying, archiving, installing and launching applications, downloading files and browsing websites, plus the UL Procyon benchmark. Norton AntiVirus Plus scored an impact of 5.3 and Bitdefender Total Security 9.6, where lower is better, which put Norton 5th and Bitdefender 9th of 19 products. Both still earned the lab’s top Advanced+ rating.
AV-TEST gave both the maximum 6 out of 6 for performance in May and June 2026, so on a modern PC neither should feel slow. The gap matters most on an older laptop or a PC you also game on, which is where the lighter product earns its keep. If you are comparing McAfee as well, McAfee had the lowest impact of all 19 products in the same April test (3.3), and McAfee Total Protection won AV-TEST’s Best Performance award for 2025; our McAfee vs Norton comparison covers it in detail.
How much do Bitdefender and Norton cost after the first year?
Both sell the first year at a steep discount and then renew automatically at a much higher price, so compare renewal prices, not headline prices. Norton is cheaper to start and Bitdefender is cheaper to keep. On the 5-device plans, Norton 360 Deluxe costs $29.99 for the first year and $124.99 a year after that, while Bitdefender Total Security costs $59.99 and then $109.99. Over three years the two cost exactly the same: $279.97.
US prices on bitdefender.com and us.norton.com, checked 29 September 2026 (before sales tax, one-year terms)
| Plan | Devices | First year | Each year after | VPN |
|---|---|---|---|---|
| Bitdefender Antivirus Plus | 1 | $24.99 | $49.99 | 200 MB a day |
| Bitdefender Antivirus Plus | 3 | $39.99 | $69.99 | 200 MB a day |
| Bitdefender Total Security | 5 | $59.99 | $109.99 | 200 MB a day |
| Bitdefender Total Security Family | 25 (5 accounts) | $79.99 | $139.99 | 200 MB a day |
| Bitdefender Premium Security | 5 | $79.99 | $129.99 | Unlimited |
| Norton AntiVirus Plus | 1 | $19.99 | $59.99 | Not included |
| Norton 360 Standard | 3 | $24.99 | $94.99 | Included |
| Norton 360 Deluxe | 5 | $29.99 | $124.99 | Included |
| Norton 360 with LifeLock Select Plus | 10 | $99.99 | $189.99 | Included |
The two 5-device plans do not contain the same things, though. Norton 360 Deluxe includes a VPN with no published data cap, 50 GB of cloud backup for Windows PCs and parental controls. Bitdefender Total Security caps its VPN at 200 MB a day per device and lists neither cloud backup nor, on the 5-device plan, parental controls. The Bitdefender plan that matches Norton’s VPN is Premium Security, which renews at $129.99: $5 a year more than Norton 360 Deluxe. At renewal, Norton 360 Deluxe works out at $25.00 per device a year, Bitdefender Total Security at $22.00 and Bitdefender Premium Security at $26.00.
Treat first-year prices as a snapshot. On 29 September 2026, Norton’s plan page showed a countdown on a “limited-time offer”, and Bitdefender priced Total Security at $54.99 on its own switch-from-Norton page against $59.99 on its main product page. Renewal prices move far less, which is another reason to compare on them.
How to avoid the renewal price catching you out. Both vendors renew automatically by default, and both disclose it. Bitdefender’s terms say the first-year price “is valid for the first year of subscription” and that any discount shown “describes the difference between the first term and renewal term subscription prices”. You can cancel auto-renewal in Bitdefender Central or by emailing [email protected], and ask for a refund “within 30 days of your initial purchase or of the automatic renewal date.” Norton offers a 60-day money-back guarantee and lets you cancel renewal from your Norton account, but note one catch: its 100% Virus Protection Promise “Requires an automatically renewing subscription for a product containing antivirus features”, so switching auto-renewal off also gives up that promise.
What does each Bitdefender and Norton plan include?
The plans differ mainly in extras, since the antivirus core is the same across each brand. This table lists what each vendor’s own plan page included on 29 September 2026.
| Plan | VPN | Password manager | Cloud backup | Parental controls | Identity features |
|---|---|---|---|---|---|
| Bitdefender Antivirus Plus | 200 MB a day | No | No | No | Data breach detection |
| Bitdefender Total Security | 200 MB a day | Yes | No | Family plan only | Data breach detection |
| Bitdefender Premium Security | Unlimited | Yes | No | Family plan only | Data breach detection, email scam protection |
| Norton AntiVirus Plus | No | Yes | 2 GB | No | No |
| Norton 360 Standard | Yes | Yes | 2 GB | No | Dark web monitoring |
| Norton 360 Deluxe | Yes | Yes | 50 GB | Yes | Dark web monitoring, Privacy Monitor |
| Norton 360 with LifeLock Select Plus | Yes | Yes | 250 GB | Yes | LifeLock identity theft protection, one-bureau credit monitoring |
VPN limits. Bitdefender’s support page describes the VPN inside Antivirus Plus and Total Security as offering “200 MB daily traffic per device”, reset at midnight UTC, and it connects you to a server automatically rather than letting you choose one. That covers email and light browsing, not streaming. Unlimited Bitdefender VPN starts with Premium Security. Norton includes its VPN from Norton 360 Standard upward and publishes no fixed data cap. Norton’s VPN does not work inside India: Norton says that, because of Indian cybersecurity regulations, Norton VPN has not been accessible within India since 27 June 2022, although Indian users can still use it when traveling abroad.
Cloud backup and parental controls. Norton’s cloud backup runs only on Windows PCs, not on Macs or phones. Norton Family, its parental control, installs only on a child’s Windows PC, iPhone, iPad or Android device, although parents can manage it from any device, including a Mac. Bitdefender includes parental controls only on its Family plans (5 accounts, 25 devices), not on the individual 5-device plans. The two screenshots below show Norton Family’s parent view.
Do you need Bitdefender or Norton if you have Microsoft Defender?
Not always. Microsoft Defender Antivirus is built into Windows, and AV-Comparatives tests it in the same series as Bitdefender and Norton. In the February to May 2026 Real-World test it blocked 396 of 400 attacks (99.0%) with zero false positives, in the same top protection cluster. Its weaknesses show elsewhere: it detected 89.2% of samples with the PC offline in the March 2026 malware test, and it had an impact score of 12.9 in the April 2026 performance test, heavier than both paid suites.
| AV-Comparatives test | Microsoft Defender | Bitdefender | Norton |
|---|---|---|---|
| Real-World Protection, Feb to May 2026 | 99.0%, 0 false positives | 99.5%, 5 false positives | 99.3%, 5 false positives |
| Malware Protection, March 2026: offline detection | 89.2% | 97.6% | 96.3% |
| Performance, April 2026 (lower is better) | 12.9 | 9.6 | 5.3 |
A paid suite earns its price when you want its extras under one subscription: one license covering Windows, Mac, iPhone and Android devices, better protection on a PC that is often offline, a lighter footprint, a VPN, cloud backup or identity monitoring. If you use one Windows PC, keep it updated and need none of those, Defender is a reasonable choice.
Bitdefender vs Norton for a small business
Both vendors sell small-business products separately from their home plans, priced by team size rather than by device. Norton Small Business and Bitdefender Ultimate Small Business Security are built for owners without an IT person: each device runs its own app and there is little to configure.
| Product | Covers | First year | Each year after |
|---|---|---|---|
| Norton Small Business | Up to 3 employees, 2 devices each | $59.99 | $119.99 |
| Norton Small Business | Up to 5 employees, 2 devices each | $99.99 | $179.99 |
| Norton Small Business | Up to 10 employees, 2 devices each | $149.99 | $249.99 |
| Norton Small Business Premium | Up to 5 employees, 2 devices each | $199.99 | $299.99 |
| Bitdefender Ultimate Small Business Security | 10 devices, 2 servers, 10 email accounts | $188.99 | $269.99 regular price |
Prices as shown on each vendor’s page on 29 September 2026, before tax. Norton labels its second figure the renewal price; Bitdefender’s small-business page shows $269.99 as the regular price without saying whether that is what renewal costs. Bitdefender’s GravityZone is a different kind of product: a central console where an administrator or a managed service provider sets policies, deploys protection, reviews detections and pulls reports for every endpoint in the company. If you have more than a handful of machines or an outside IT provider, compare GravityZone with the endpoint products in our guide to antivirus software for small businesses rather than with a home suite, and pair it with a proper business firewall.
What Bitdefender’s business consoles look like
These screenshots show Bitdefender’s business tools, which a home buyer never sees. The Add Company screen is from GravityZone; the four Control Center views are dated February 2013, and the network analytics dashboard is from 2019.
Bitdefender or Norton: which should you choose?
| If you | Choose | Why |
|---|---|---|
| Want one plan for a family, including children’s devices | Norton 360 Deluxe | Parental controls, 50 GB of backup and a VPN for 5 devices; Bitdefender adds parental controls only on 25-device Family plans |
| Have an older PC or also game on it | Norton | Impact score of 5.3 against 9.6 in AV-Comparatives’ April 2026 test |
| Worry most about phishing and scam sites | Norton | 93% of phishing sites blocked against 87% in AV-Comparatives’ 2026 certification |
| Want the fewest false alarms and the best targeted-attack record | Bitdefender | 4 false positives against 9 (March 2026) and 15 of 15 targeted attacks stopped (2025) |
| Need a VPN for heavy use | Norton 360 Standard or Deluxe, or Bitdefender Premium Security | Bitdefender’s cheaper plans cap the VPN at 200 MB a day |
| Plan to keep the subscription for years and need no backup or parental controls | Bitdefender Total Security | $109.99 a year at renewal against $124.99 for Norton 360 Deluxe |
| Use one Windows PC and want to pay nothing | Microsoft Defender | 99.0% real-world protection with zero false positives in the same 2026 test |
| Run a business with an IT provider | Bitdefender GravityZone | A central console for policies, detections and reports across every endpoint |
Bitdefender vs Norton: frequently asked questions
Is Bitdefender better than Norton?
Not on protection. In AV-Comparatives’ February to May 2026 Real-World test, Bitdefender blocked 99.5% of 400 attacks and Norton 99.3%, and the lab placed both in its top cluster. Bitdefender leads on targeted attacks (15 of 15 against 13 of 15 in 2025) and on false alarms; Norton leads on system speed and phishing. For most households Norton 360 Deluxe includes more for the money, while Bitdefender costs less per year after renewal.
Which is cheaper, Bitdefender or Norton?
Norton is cheaper to start and Bitdefender is cheaper to keep. On 29 September 2026 the 5-device plans cost $29.99 for the first year of Norton 360 Deluxe and $59.99 for Bitdefender Total Security, then $124.99 and $109.99 a year at renewal. Over three years both come to $279.97, and the Norton plan also includes cloud backup and parental controls.
Does Norton still mine cryptocurrency?
No. Norton Crypto, the Ethereum mining feature once included in Norton 360, stopped after Ethereum moved from proof-of-work to proof-of-stake, which ended GPU mining. Norton’s support page says it has disabled the mining feature and that the Norton Crypto program, NCrypt.exe, is removed automatically through LiveUpdate. Any balance already earned can still be withdrawn to Coinbase.
Does Bitdefender or Norton slow down a computer?
Neither by much. Both scored the maximum 6 out of 6 for performance in AV-TEST’s May and June 2026 Windows 11 test. In AV-Comparatives’ April 2026 performance test, where lower is better, Norton AntiVirus Plus had an impact score of 5.3 and Bitdefender Total Security 9.6, placing 5th and 9th of 19 products. On an older PC, Norton is the lighter choice.
Is the VPN in Bitdefender and Norton unlimited?
Norton includes its VPN from Norton 360 Standard upward and publishes no fixed data cap. Bitdefender’s VPN in Antivirus Plus and Total Security is limited to 200 MB per device per day, reset at midnight UTC, and unlimited traffic starts with Bitdefender Premium Security at $79.99 for the first year and $129.99 after. Norton’s VPN cannot be used inside India.
Bitdefender and Norton are examples of what kind of software?
Antivirus software, also called anti-malware or endpoint security software: programs that detect, block and remove viruses, ransomware, spyware and phishing sites. Both are now sold as security suites that bundle the antivirus engine with extras such as a VPN, a password manager and identity monitoring, priced by the number of devices covered.
How we researched this comparison: on 29 September 2026 we took every protection figure from the labs’ own reports (AV-TEST’s May and June 2026 Windows 11 results and 2025 awards, and AV-Comparatives’ Real-World Protection, Malware Protection, Performance, Anti-Phishing and 2025 Summary reports) and every price from bitdefender.com and us.norton.com, recording the first-year and renewal price each vendor shows US buyers. We read table values from the labs’ published pages, not from review sites, and we left out results with very small samples. We did not run our own malware tests: the labs test hundreds of live samples under controlled conditions, which a single reviewer cannot match. The vendor links on this page are plain links, not affiliate links.