I understand that antivirus software is necessary on Windows, but I’ll never understand the existence of Windows Defender. If Microsoft knows enough to prevent a virus that exploits something in windows, why are they putting their effort into an antivirus program, and not fixing ththe problem in Windows? If someone has a good explanation for this, I’d love to hear it.
because that isn’t really how these things work. It doesn’t matter how secure your operating system is, it can still get infected with malware if you let the user download and install arbitrary software. every modern desktop operating system that allows this has this hole.
features that pop up warnings when running code not signed by the OS vendor (like Windows SmartScreen or macOS Gatekeeper) help to an extent, but are not magic bullets since users can still override them.
at the end of the day, the best defense is to make sure you actually trust any software you download before running it.
Because… They are? Whenever there is a problem in Windows itself, they release an update to fix that ASAP.
Defender doesn’t just work against viruses that exploit weaknesses in Windows. It also works against viruses in programs the user installs. The purpose of Defender is the same as any other antivirus software, to detect known virus signatures in downloaded software, as well as attempt to detect programs that display virus-like behaviour. It also attempts to ensure that users only install software from sources they trust. For these purposes, Windows Defender is at least as good as most other antivirus software on the market.
I would also generally recommend using an antivirus program on a Linux/OSX machine, unless you really know the risk you’re accepting by not using one. Even then, I recommend occasionally running ClamAV or a Malwarebytes scan. There is a misconception of “there are no viruses for non-Windows platforms”, but the thing is that a lot of viruses these days are cross-platform compatible, and all it takes is one program or dependency becoming an infection vector. Keep yourselves safe, people!
The only caveat I’ll add is that because of the way package managers work in Linux, it’s much less likely someone will be running something from an untrusted source. It’s less true these days with snap and flatpak but those are at least sandboxed.
It’s not that common these days for Linux users to be downloading random binaries and running them.
I understand that antivirus software is necessary on Windows, but I’ll never understand the existence of Windows Defender. If Microsoft knows enough to prevent a virus that exploits something in windows, why are they putting their effort into an antivirus program, and not fixing ththe problem in Windows? If someone has a good explanation for this, I’d love to hear it.
Tell me you know nothing about software without telling me.
I know nothing about software. That’s… Why I asked.
because that isn’t really how these things work. It doesn’t matter how secure your operating system is, it can still get infected with malware if you let the user download and install arbitrary software. every modern desktop operating system that allows this has this hole.
features that pop up warnings when running code not signed by the OS vendor (like Windows SmartScreen or macOS Gatekeeper) help to an extent, but are not magic bullets since users can still override them.
at the end of the day, the best defense is to make sure you actually trust any software you download before running it.
Because… They are? Whenever there is a problem in Windows itself, they release an update to fix that ASAP.
Defender doesn’t just work against viruses that exploit weaknesses in Windows. It also works against viruses in programs the user installs. The purpose of Defender is the same as any other antivirus software, to detect known virus signatures in downloaded software, as well as attempt to detect programs that display virus-like behaviour. It also attempts to ensure that users only install software from sources they trust. For these purposes, Windows Defender is at least as good as most other antivirus software on the market.
I would also generally recommend using an antivirus program on a Linux/OSX machine, unless you really know the risk you’re accepting by not using one. Even then, I recommend occasionally running ClamAV or a Malwarebytes scan. There is a misconception of “there are no viruses for non-Windows platforms”, but the thing is that a lot of viruses these days are cross-platform compatible, and all it takes is one program or dependency becoming an infection vector. Keep yourselves safe, people!
The only caveat I’ll add is that because of the way package managers work in Linux, it’s much less likely someone will be running something from an untrusted source. It’s less true these days with snap and flatpak but those are at least sandboxed.
It’s not that common these days for Linux users to be downloading random binaries and running them.
That makes a lot of sense, thanks!