Do You Really Need to Pay for Antivirus Software on Windows?

Quick Answer: No. Windows Defender offers decent protection while being free, conveniently updates via Windows Update, and is not a huge resource hog.

Long Answer:

Anti-virus software has been available for a long time. For years, people paid for virus protection via a subscription service.

Over the last 10 or so years, free anti-virus software such as Avast, Avira, Windows Defender, AVG, Malwarebytes (the free, non-premium version), etc. have taken a hold of the market. Now I have used all of the above-mentioned anti-viruses. They are all pretty good (AVG, for me, ran on the slow side), but my favorite of the bunch is Windows Defender.

Now I do not have fancy charts, data sheets, graphs, etc. to show the “awesomeness” of Windows Defender. What I can tell you is I am running it on several Windows boxes without any trouble or noticeable slowdown.

None of the boxes have had a successful virus intrusion – while running Windows Defender – for the past 3+ years. False positives for me are pretty much non-existent, and I do not have to think about updating Defender, since Windows Update takes care of that automatically.

Q: What advantage would a paid anti-virus software give me that a free one won’t?

A: Pretty much just support. No guarantee of getting support with free software, but with paid software they kind of have to give support, at least if they want to stay in business.

Everything else – including anti-virus definitions (updates) – are good with both paid and free software.

Q: Are there any open source anti-virus software out there for me to use?

A: The only one I would recommend is ClamAV. However, this is not a proper anti-virus solution for most people.

While ClamAV has a real-time scanner, it is not used by default, and it can make your computer run slow (even ClamAV’s own help documentation warns about this). It also has a minimal amount of definitions (from my experience, will catch almost nothing out-of-the-box), and has no graphical user interface for you to use (yes, you will be manually editing a configuration file with a text editor), and it will catch several false positives if you are not careful.

This is not a user-friendly software solution. It is geared towards servers and server administrators to set it up properly.

Q: Do any of the mentioned anti-virus software have any back-doors, spyware code, etc. in them?

A: I really do not know, but I would never discount the possibility. The only solution that should not have any “spy” code in it would be ClamAV, but as mentioned before, ClamAV is very non user-friendly and will cause headaches to people who do not know what they are doing.

Unfortunately, all the good free anti-virus software is closed-source. I can understand this, because no company wants their trade-secrets exposed to the entire world. This would not be good for business!

Also – just a quick note – I personally would avoid the Kaspersky anti-virus software. They are based in Russia, and I would not trust any Russian software on my computer. I have nothing against the Russian people themselves, I just don’t trust their government not to spy on me. Just a thought.


Posted in Computers, Internet and Servers, Operating Systems, Security, Software

What Incognito Mode Can and Cannot Protect

A couple weeks ago, someone online posted a comment saying you can stay “safe and secure” online due to using the web browser’s incognito mode.

Is this true. Does incognito mode really prevent someone from ever tracking you online?

Short answer: no

Long answer:

People believe the myth that the incognito mode – on your web browser – will keep you safe and private. However this is not the case.

Incognito mode only does the following:

  • prevents web history from being logged locally
  • prevents download history from being logged locally
  • prevents cookies & cache data from being stored locally

In other words, incognito mode will prevent someone from spying on you, just by opening the web browser and viewing the web history and downloads.

Now what does incognito mode not protect against?

  • Malware on the system — Any malware on the system will be totally unaffected by your use of incognito mode.
  • IT department — Your IT department will still be able to track your Internet usage on their network. This is especially true if you use their local DNS resolvers. They will know what websites you visit, regardless of your use of incognito mode.
  • Internet Service Provider — Unless you make use of a VPN service, your ISP will definitely know where you go online, regardless of your use of incognito mode.
  • Government surveillance — Of course, incognito mode will be of no use to you here. Also, even using a VPN will not help much if you are being targeted by a government.

In addition, if you have your web browser logged into a service (e.g., Google Chrome logged into Google), they can track your browsing habits regardless of being in incognito mode or not.

The link below helps prove that any browser being in “private” or “incognito” mode (whatever you want to call it) does nothing to prevent 3rd parties from spying on you.

https://www.reuters.com/article/us-alphabet-google-privacy-lawsuit-idUSKBN23933H


Posted in Computers, Internet and Servers, Security, Software, VPN

Are Web Browser Extensions Safe to Use?

Many people use web browser add-ons (such as Ad-blockers) for their everyday browsing. What most people are unaware of is that many of these add-ons have permissions that allow the add-on to view the content of the web pages the user is viewing.

The problem? If someone has installed a malicious add-on, their web browsing data (e.g., browsing history, password credentials, what they type into a website, etc.) would have been sent to the add-on’s creator. Now I am not implying that every single web browser add-on does this, but there is a very high potential that this can happen.

Would only using open-source browser add-ons be a safe option? Well open-source add-ons would definitely lower the chance that someone would get away with spying on you. However open-source projects do not have a spotless security track record either. There is still some risk.

Even Mozilla themselves warn about this problem with web browser add-ons (also called extensions).

Here is an example of what I am talking about (https://www.zdnet.com/article/mozilla-removes-avast-and-avg-extensions-from-add-on-portal-over-snooping-claims/).


Posted in Android, Computers, General, Internet and Servers, Security, Software

The Windows Command Prompt is not DOS

A while back, I read on a website that the Command Prompt on the NT-based versions of Windows are somehow from MS-DOS. This is a myth.

While the Command Prompt (cmd.exe) does copy the commands from the MS-DOS (command.com) command line, this does not make the Command Prompt in Windows NT in any way, shape, or form, related to MS-DOS.

For example, I could write a C#.Net console application that mimics Linux bash commands, but that would not make my application “bash”.  I am just mimicking the commands from bash. The same applies for the Command Prompt on the versions of Windows NT. The Command Prompt may use the same commands as the MS-DOS one, but that does not make it DOS.

Here is a bit of information some people may find interesting.

32-bit Windows NT operating systems (e.g., WinXP, WinVista) can run DOS programs due to having a built-in 16-bit “NT Virtual Dos Machine” otherwise known as NTVDM. This allows people to run DOS programs (even full-screen ones) without much problems.

However the 64-bit versions of Windows do not have NTVDM. For the 64-bit Windows operating systems, an emulator (e.g., DOSBox) is required to run DOS programs.


Posted in Computers, Operating Systems, Software

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