The best internet security suite for Windows in the UK, 2026
what the labs and experts agree on
Updated 16 October 2026 · Edited by the Benchmark Buyer team · How we review
We do the homework you'd do before buying, so you don't have to. Like any careful buyer, we read the independent lab tests, the expert reviews and what users say, then sum up where they agree and where they don't. We don't run our own tests. This guide draws on 4 independent lab tests from 3 testing labs and 4 expert rankings of security suites published between May and October 2026. A suite is antivirus plus extras such as a VPN, a password manager, dark web monitoring, parental controls and backup, so we look at what experts say about those extras as well as how well each suite blocks malware. If you only want antivirus, see our best antivirus guide.
The short answer
Norton 360 is the clearest consensus pick. It is in every expert ranking we read, three of the four put it first or second, and it is among the best in all four lab tests. Reviewers single it out for having the fullest set of extras, including cloud backup. Avast One and Bitdefender tie for second: Avast for its well-rounded extras, Bitdefender for the strongest protection with a long feature list.
People who like to fine-tune settings (experts split on extras)
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Stars show the consensus score out of 10, turned into a 5-star scale and rounded to the nearest half star; the exact score is in each product's section. Lab results sum up 4 independent lab tests of each brand's antivirus engine; the labs don't test the extras. Popularity (●●●● very high to ●○○○ lower) is based on how many people have rated each brand's app on Google Play: very high (5m+ ratings), high (1m+), medium (500k+) or lower. It shows how widely used a product is, not how good it is, so it doesn't affect the score.
1. Norton 360: the most complete suite
★★★★★Consensus score: 9.7
Norton is in all four expert rankings, and three put it in their top two: Tom's Guide and PCWorld put it first, TechRadar second (best for families) and Cybernews fifth. In the labs it scored 18/18 at AV-TEST, a perfect SE Labs rating and was among the leaders in both AV-Comparatives tests.
What sets it apart is the extras. Norton 360 Deluxe includes a VPN, a password manager, parental controls, dark web monitoring and 50 GB of cloud backup for Windows PCs, which most rivals don't offer at all.
"Norton also tosses in 50GB of storage for cloud backups, access to Norton's password manager and VPN, parental controls" (PCWorld)
Where opinions differ: Tom's Guide's top pick is Norton 360 with LifeLock Ultimate Plus, a US plan; Norton's UK site doesn't mention LifeLock. In the UK, Deluxe gives you dark web monitoring, and the fuller identity tools (identity restoration support, credit reports and alerts) come with Norton 360 Advanced, which also covers 10 devices and 200 GB of backup. Cybernews ranks Norton lower, fifth, calling it the best low-impact suite for everyday use.
Who it suits: anyone who wants one subscription for protection, privacy and backup on up to 5 devices. Parental controls work on Windows, iPhone and Android, not Mac.
What users say: people like its strong protection and easy setup. The most common complaints are slowdowns during scans, the renewal price, pop-ups and upsells, and difficulty cancelling. (Capterra)
Avast One is second at PCWorld and Cybernews (best anti-phishing suite) and third at TechRadar, which names it best for multi-device coverage. Tom's Guide doesn't include it. The labs tested Avast's free antivirus, which uses the same engine: 18/18 at AV-TEST, a perfect SE Labs rating and near the top in both AV-Comparatives tests.
Reviewers like that the paid plan adds privacy extras without a data cap on the VPN.
"The Avast One plan also includes dark web monitoring, a VPN with unlimited bandwidth" (PCWorld)
"Avast One protects against malicious software, webcam hacks, and data breaches, all wrapped in an easy-to-use interface." (TechRadar)
Who it suits: households that want an easy all-in-one app with an unlimited VPN across lots of devices. Avast's UK site says its multi-device plan covers up to 10 devices. None of our sources mention a password manager or backup in Avast One.
3. Bitdefender: the strongest protection, with a long feature list
★★★★½Consensus score: 9.3
Bitdefender Total Security is first at TechRadar and Cybernews, and Tom's Guide ranks Bitdefender Premium Security second as its "best features" pick. It scored 18/18 at AV-TEST and let only 2 of 400 attacks through in AV-Comparatives' real-world test, one of the best results. It wasn't part of SE Labs' latest test. PCWorld doesn't include it.
"Total Security is a suite that’s positively bristling with features." (TechRadar)
TechRadar lists a password manager, a spam filter, parental controls and webcam and microphone protection among them. Tom's Guide notes that Premium Security has no identity theft protection or cloud backup.
Where opinions differ: the extras depend on the plan. In Total Security the VPN is limited to 200 MB a day per device, and parental controls come only with Family plans; Premium Security adds an unlimited VPN. Experts who rank Bitdefender first mostly point to its protection; Tom's Guide prefers Premium Security for the full set of extras.
Who it suits: people who put protection first and want a password manager and scam protection too. Choose Premium Security if you want a VPN you can use all day.
4. McAfee: unlimited devices, but some extras are US-only
★★★★½Consensus score: 9.2
McAfee is in all four expert rankings, but never at the top: third at Tom's Guide (best value), fifth at TechRadar (best for value) and PCWorld, eighth at Cybernews (best for unlimited devices). It scored 18/18 at AV-TEST and a perfect SE Labs rating, but let 6 of 400 attacks through in AV-Comparatives' real-world test, more than the suites above it.
"it includes a lot more features and protection for an unlimited number of devices" (Tom's Guide)
Where opinions differ: reviewers are less keen on the extras than on the device count. TechRadar calls the VPN "an integrated (but very basic) free VPN that’s commendably user-friendly" and notes that "US customers also benefit from a useful extra in the form of identity theft protection." (TechRadar) McAfee's UK site says not all identity monitoring elements are available in all countries, though it lists dark web monitoring, a password manager and a scam detector.
Who it suits: large households that want one plan for every phone, tablet and computer, and don't need advanced VPN features.
What users say: people like its reliable protection, ease of use and multi-device cover. The most common complaints are pushy upsells, steep renewal prices and heavy scans. (Capterra)
Only two of our four expert rankings include ESET: Tom's Guide fifth (best performance) and TechRadar seventh (best for configurability). It scored 18/18 at AV-TEST, but let 6 of 400 attacks through in AV-Comparatives' real-world test and raised more false alarms than the others here in the malware test.
"the system of parental controls is very bare-bones, but the password manager is well fleshed out." (TechRadar)
Tom's Guide agrees on the basics, noting "a password manager, parental controls, anti-theft protections for laptops" (Tom's Guide).
Where opinions differ: Tom's Guide says ESET HOME Security Premium "doesn't include a VPN service, backup software, or identity protection", but ESET's own site now lists a VPN with Premium and identity protection with Ultimate. Check the plan page before you buy.
Who it suits: experienced users who want a light suite they can fine-tune, and don't need backup.
Windows' built-in antivirus does as well in the labs as most paid suites (see our antivirus guide), but it isn't a suite. PCWorld notes: "You can find more features in other antivirus suites, like online privacy tools, a VPN, and encrypted cloud backups." (PCWorld)
Not ranked, and why
Trend Micro is fourth at both Tom's Guide (best multi-platform) and TechRadar (best for beginners), but has no result in the lab tests we use. We need at least two lab tests to rank a suite.
Avira Prime appears in three expert rankings and scored 18/18 at AV-TEST, but wasn't in the other labs' latest tests.
TotalAV and AVG each appear in only one of the four suite rankings (Cybernews and PCWorld). We need at least two.
Kaspersky Premium and F-Secure Total did well at AV-TEST, but none of our four suite rankings includes them. Kaspersky's antivirus has been banned from sale in the US since 2024 (US Bureau of Industry and Security), and most of our expert sources are US-based.
Surfshark Antivirus, Panda Dome and Webroot appear in one ranking each and have no result in the lab tests we use.
How we score
We don't run our own tests. Each suite's consensus score combines three things:
Independent lab results (40%): the same four lab tests as our antivirus guide, each turned into a score out of 100, then averaged. Attacks that get through cost more than false alarms. The labs test the antivirus engine, not the extras, so they count for less here than in our antivirus guide.
AV-TEST (August 2026): protection, performance and usability points out of 18.
AV-Comparatives Real-World Protection (February to May 2026, 400 live attacks): minus 2 points per attack that got through, minus 0.5 per false alarm.
AV-Comparatives Malware Protection (March 2026, about 10,000 samples): minus 1 point per 0.01% of samples missed, minus 0.5 per false alarm.
SE Labs Home Anti-Malware (September to November 2025): its total accuracy rating.
Expert rankings (40%): each suite's position in 4 expert rankings of security suites from Tom's Guide, TechRadar, PCWorld and Cybernews. These are where reviewers weigh the extras, so they count as much as the labs.
Breadth of agreement (20%): how many of those 4 rankings include the suite.
To be ranked, a suite needs results from at least two lab tests and a place in at least two of the four expert rankings. Microsoft Defender isn't ranked because it isn't a suite. We leave out evidence older than 18 months, and sources we can't date: SafetyDetectives' suite ranking shows no update date, so it isn't counted. Affiliate commission plays no part in the score.
Evidence last checked: 16 October 2026. Full details on how we review.