Serious Discussion Some guy asks if Windows Defender/Microsoft Defender is enough and this is the amazing answer he got back

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annaegorov

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In a world with Windows defender and more and more system and hardware checks on malware, I'd say so. I've also been doing some looking into Norton's parent company which was formerly Symantec and now Gen Digital for the consumer side. The company has an extremely toxic anti consumer "profit at any cost" culture.

Norton Parent Co. Symantec Had to Shut Down Certificates Business: Symantec bought Verisign back in 2004. Over the years and many acquisitions they built up their identity federation cert business. Due to the security of the internet being underpinned by these certificates, they must be audited and trusted to run things tiptop. However, several times Gen Digital (nee Symantec) was caught letting its partners create certificates for domains that already existed, with no audit checks. This was major news when it happened in 2014 and even worse when discovered again in 2016-7. The second time was so bad, they were forced to sell their business to Digicert rather than go through the audits that Google and Mozilla demanded.

Gen Digital Subsidiary Avast and AVG using Antivirus to sell users personally identifiable browsing history and click history to marketers, sued by FTC: Going back to antivirus, in 2014-2020, Symantic/Gen Digital subsidiary Avast bought AVG and another antivirus maker called Jumpshot. Most news articles say Jumpshot was an analytics company, but when Avast bought it, it was an antivirus maker. They switched its "focus" to marketing post-takeover. They used Jumpshot technology to monitor and keep their customers' every single search, click, use, etc. Despite selling software that scared people into installing it so that wouldn't happen! They just settled with the FTC for a paltry $16 million settlement this month. This extremely private data was sold to data brokers and more. This included not only users of the Free product, but AVG/Avast toolbars and the *paid* versions, as well. (FTC.gov details: https://www.ftc.gov/system/files/ftc_gov/pdf/Complaint-Avast.pdf )

Self Even today, the antivirus apps desperately want you to install self-signed certificates as part of the install. This allows them to intercept otherwise private connections between you and and your bank, or Facebook, Discord, Apple, etc. The apps will nag you incessantly if you don't install their certificates. Why wouldn't you? Because they effectively break encryption, and allow Symantec (whose subsidiaries have been caught selling personally identifiable info on the public market), erm now Gen Digital to do the same thing. You effectively give them permission to perform a MiTM (man-in-the-middle) attack on your private data, and you have to trust that a) they won't have bugs that make you even more vulnerable on top of the MiTM, b) That their methods of verifying certificate trust is actually functional and secure and c) That you trust that now that they have access to an internet connected system with admin privileges and the ability to intercept all HTTPS traffic that they won't go ahead and do the same things again. After all, it only cost them $16 million vs all the profit they made selling user data.

Basically Gen Digital (nee Symantec, nee Norton LifeLock) seem to do anything possible for more profit, even if it's conceptually risky and puts the customer at a security disadvantage.
I highly recommend staying away from *any* product offering from Gen Digital, which includes the Symantec, Norton/LifeLock, Avast and AVG brands, among others. They've proven repeatedly they cannot be trusted, and have morphed the role of antivirus into the worst malware on your system itself.

I personally would avoid Norton in general due to their company having a shady history of pushing profit over users. Microsoft hasn't exactly been great in that domain lately, either. However, you do get many, many more tools by default in a current, updated version of Windows 10 or 11 than you ever did before (Note: Windows 10 support will end 14 October 2025; users must upgrade before then to remain secure). macOS similarly has quietly added a whole arsenal of tools that carefully guard which apps have which permissions to run on your system and the OS is malware-aware, quietly getting updates all the time. My opinion is that users that are reasonably computer literate, and aren't undertaking risky behavior shouldn't need more than what comes with their OS. Just keep updated, and to keep good online habits, and know what you're getting into.

Is Windows enough?
If you open the Windows Security dashboard, you'll see that Windows includes a full suite of tools that already run by default. For example, Windows Defender is antivirus protection included with windows 11. You get protection against ransomware, macro viruses, etc. Every file that's downloaded is checked against DBs to make sure it doesn't match known malware. Disks, including internal and external drives by default are all scanned while being accessed. You get a built-in firewall since Windows XP and you can add fairly sophisticated rules to if needed. Even when an app is run, app signatures and certificates are again checked against known bad apps, and sandboxing and virtualization technology protects your OS kernel in an isolated instance. Secure boot lessens the chance of boot loader malware that would be otherwise undetectable. Bitlocker adds an extra layer of encryption at rest to your drives (Pro and corporate editions). If kids share a system and they are not computer literate, giving them their own non-admin accounts can prevent them from messing up your secured system but requiring escalated privileges. Pretty much everything I mentioned for Windows is delivered by macOS as well, but they call them different things.

What about any special features Norton has that Windows doesn't? Many of the tools that Norton 365 et. al, might have that Windows doesn't already have often includes very invasive tools that are running on top of your emails, your web browser including intercepting and tracking your usage, decrypting your private data by installing self-signed certificates to do this while you browse. This is not recommended as secure by any means, but it still happens. Many Antivirus apps, especially free ones will keep on insisting that the user grant their apps lots of permissions and install helpers everywhere. This is not only irritating but it makes your system less safe, and there are other existing ways to accomplish the same thing. It suggests that they simply want to access your browsing data to sell to advertisers (or else why wouldn't you be able to tell those messages to go away for good?).

All major browsers today have some kind of site-checking to make sure your pages aren't malware infested. Chrome's optional enhanced protection setting sends your URLs and "a small sample of page content, downloads, extension activity, and system info." to the Google Safe Browsing service, which is linked to your Google account. Edge has numerous settings that promise to enhance your safety if you give up your browsing information, many of which default to on. These all claim to run a check on a site sometimes even before you load it against known malware and will warn you and make it hard to visit problematic sites. If you don't trust Microsoft or Google, there's Firefox, who has their own site validation service as well.

In addition to browser safe browsing, you can get additional security from ad blockers, specifically "uBlock Origin" on Chrome and Firefox, or AdGuard on Safari. These have large curated lists of ad and malware provider domains and simply block content from them (you also get the benefit of faster loading in some cases, and can easily whitelist individual sites you want to get ad revenue). You could also use AdGuard DNS to provide another level of malware checks to every site you visit (they prevent known hosts that sponsor malware to be blocked, and can also block intrusive ads on all devices). With regard to email guards/protection, if there's a high chance someone who doesn't know what phishing or ransomware is and might fall prey, then you might benefit from an advanced email client on their PC, like Thunderbird by Mozilla (Firefox). Thunderbird has built-in privacy and phishing attack protection. I would not recommend any Outlook client for email unless it's being used for work, or Microsoft email like Hotmail/Outlook.com, or a microsoft365 account. Microsoft Outlook (desktop app) siphons your Gmail and other content on to Microsoft servers unnecessarily, and prevents you from using Outlook simply as a client. BIG AVOID. Otherwise, if you know what's phishing and what's junk, you don't really need anything more than a basic antivirus.

Basically, if you're not too risky (avoid pirated stuff, know what is and isn't phishing, don't sign up for everything under the sun) and know what you're doing, you don't need anything more than what comes with today's OSes. Just make sure you back up your computer and important stuff, stay up to date, and stay vigilant that the OS vendor doesn't start turning the OS into malware itself.
 
This is an incredibly detailed and well-researched response. It highlights the potential risks associated with using certain antivirus software, particularly those from Gen Digital. It emphasizes the importance of being cautious and informed about the software we use. The user suggests that Windows Defender, along with good online habits and regular updates, should be sufficient for most users. They also highlight the importance of understanding and managing permissions on your system for added security.
 
One thing you failed to mention is that windows defender is fairly easy to bypass, look at defendnot as an example. And independent testing still puts windows defender in the middle of the pack for AVs. Except for VIPRE, K7, Malwarebytes, Panda, Quick Heal and Trend Micro, every other antivirus blocks more threats than windows defender. Malware Protection Test March 2025

I will stick with my ESET subscription for now.



If you don't trust Microsoft or Google, there's Firefox, who has their own site validation service as well.
Firefox just uses Google Safe Browsing, btw.

Gen Digital Subsidiary Avast and AVG using Antivirus to sell users personally identifiable browsing history and click history to marketers
Also, the whole Jumpshot spying thing happened before Gen bought Avast/AVG. Jumpshot and ceased its operations in January 2020. Norton started merging in mid-2021.
 
Basically, if you're not too risky (avoid pirated stuff, know what is and isn't phishing, don't sign up for everything under the sun) and know what you're doing, you don't need anything more than what comes with today's OSes. Just make sure you back up your computer and important stuff, stay up to date, and stay vigilant that the OS vendor doesn't start turning the OS into malware itself.
Windows Security (properly configured on the Pro edition of Windows 10 or 11) is adequate, but default Windows Defender by itself along with Windows Security default configurations on the Home edition of Windows are not adequate.

Security is not software. Security is a process which involves the user(s). People are intrinsically a part of that process and they are always the problem. ALWAYS. That is why companies such as Microsoft want as little to do with home users as is possible. For one, most home users do not want to pay for software or security services.

It is no surprise that tech leaders and giants are in business to earn a profit. I think that there are many out there who mis-characterize those companies' actions as shady and anti-consumer at any cost. That is not true. Not even partly true. Corporations are created and exist to serve the investors and shareholders. They don't function on being kind and generous to the world. The world does not operate on humanistic values, and it never will.

Many companies in the security space are willing to do more for consumers - IF AND ONLY IF - those consumers stop all their insecure behaviors. It is not a valid argument to state "Windows Defender allowed my system to be infected" when the user/person is a link clicker, downloader, pirater of software, "user that wants to use stuff," or whatever other bad, insecure behavior.

Every single piece of published code has as part of its EULA and/or Terms of Service -- "Offered AS IS and use at your own risk and peril." Every EULA out there.

Any person that uses any digital device and doesn't have adequate knowledge creates their own risk. Nobody owes them a thing and nobody else is responsible for protecting the user. It is ALWAYS the user's accountability and responsibility for digital security.
 
One thing you failed to mention is that windows defender is fairly easy to bypass, look at defendnot as an example. And independent testing still puts windows defender in the middle of the pack for AVs. Except for VIPRE, K7, Malwarebytes, Panda, Quick Heal and Trend Micro, every other antivirus blocks more threats than windows defender. Malware Protection Test March 2025

I will stick with my ESET subscription for now.




Firefox just uses Google Safe Browsing, btw.


Also, the whole Jumpshot spying thing happened before Gen bought Avast/AVG. Jumpshot and ceased its operations in January 2020. Norton started merging in mid-2021.
Disclaimer, unless it wasn't clear:

I didn't author the above original post, I just shared it for those like me who are less knowledgeable than most of you here, and who happen to still be learning
 
At least for now, since I have had nothing but problems with the "Gen Digital" products...

I am using MSD, + Defender UI + Whitelist Cloud + Malwarebytes Antimalware (not running, just used for manual scans)
 
Basically, if you're not too risky (avoid pirated stuff, know what is and isn't phishing, don't sign up for everything under the sun) and know what you're doing, you don't need anything more than what comes with today's OSes. Just make sure you back up your computer and important stuff, stay up to date, and stay vigilant that the OS vendor doesn't start turning the OS into malware itself.
I think that the above statement is generally true. But usually, I cringe at the general simplified statement like "Windows Defender is adequate for most users," because what I see is more nuanced than that. Generally, gamers, kids, the elderly, and other high-risk groups (crypto investors, etc.) should probably get all the edges they can. Some of the qualifiers are also hard to evaluate:
  • Know what phishing is. I have a convincing phishing email that I wasn't certain of until the site went completely inactive, which was a few years after I got the email.
  • Don't sign up/download anything under the sun. I think for niche groups, including this one, we are bound to do something that people outside would see as questionable. Otherwise, how would all the phishing/malware/infostealers be so effective?
  • Know what you are doing. Nobody can know all the tactics that malware/scammers are using, especially if you are not keeping up with it. How many people, being interested in just using computers, would be up-to-date?
I personally use MD (plus other add-ons) because of memory constraints, and I would be using some other free solutions if there were no such constraints. For my not-up-to-date friends (which there are many), I recommend other solutions (and more education 🤞). ESET, Kaspersky*, and BitDefender are usually well recommended here.
 
MD has many pros; the lightest on CPU and RAM (only K uses marginally less RAM); no conflict with other system component such as explorer; almost no glitches, except for slow loading of interface.

But I will tell you one short story; when malicious code resides in Edge cache, K detects it immediately even if set to min, while MD set to max does not, until you do manual scan of cache or full scan.

MD detection, in my pov, is very good, not far behind K and B, and sometimes get stuff missed by; however, it still in need for more improvements and polishing which I doubt MS is much concerned with.
 
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If Windows Defender were enough, other antiviruses would not exist. If WD is "so" wonderful, why does Microsoft use a third party antivirus on their systems? which was what caused the error in much of the world.
There will always be a market for third party antiviruses, even though the market is shrinking. While Microsoft Defender provides very good protection, there still are reasons to use third party antiviruses. Some people find that Defender causes slowdowns and using a light third party antivirus makes their computers run faster. Some third party antiviruses, provide better protection, even if the difference is often not massive.

CrowdStrike is not included with Windows, you have to manually install it.
 
There will always be a market for third party antiviruses, even though the market is shrinking. While Microsoft Defender provides very good protection, there still are reasons to use third party antiviruses. Some people find that Defender causes slowdowns and using a light third party antivirus makes their computers run faster. Some third party antiviruses, provide better protection, even if the difference is often not massive.

CrowdStrike is not included with Windows, you have to manually install it.
Actually W runs faster with MD; protection-wise, not the best.
 
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Actually W runs faster with MD;
That's most definitely not true as a broad generalisation. Some people are very happy with Defender's performance, but others find it causes noticeable slowdowns. In my experience, on low end systems, Defender often causes slowdowns and when I install a very light third party antivirus, the computer runs better.
 
That's most definitely not true as a broad generalisation. Some people are very happy with Defender's performance, but others find it causes noticeable slowdowns. In my experience, on low end systems, Defender often causes slowdowns and when I install a very light third party antivirus, the computer runs better.
There is no end lower than my 2008 core 2 duo PC 😁
 
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On a system like that, Microsoft Defender can very often cause slowdowns. If your computer is running slower than it should be, open Task Manager and you will often see high CPU use from Defender.
MD uses almost the RAM as K (50-150 MB) and rarely use CPU (K also, except while browsing with encrypted connections scan on).
 
As soon as our GOV regains some common sense and releases Kaspersky back into the hands of the public, I will gladly use Kaspersky, Eset would be my second choice
It's never going to happen. There is intelligence about Kaspersky that is not publicly available. Most of the decisions made to ban Kaspersky products are based upon that sensitive/classified information.

The geopolitics of the Russian invasion of Ukraine will ultimately lead to a full boycott if the war does not stop.

The only way for Eugene to regain standing in the international community is to permanently emigrate from Russia and cut all of his Russian political and security service ties. He would have to fire more than half of his Russia-based staff as well as they all originated from Russian state security services. Then Eugene would have to court western intelligence services.
 
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