Maxim___g wrote:
May I ask you, what it takes for the Mac to be free of viruses or other malware?
Don't turn off the built-in security. Ideally, don't install any software that would compromise the built-in security either. Just so you know, any 3rd party software constitutes some level of security degradation. App Store apps are the least risky. 3rd party "security" and "privacy" apps that require your administrator password to install are the most risky. But this is all relative risk, the actual, objective level of risk is still low.
People install actual malware on purpose in order to run some expensive app for free or access a game, streaming video service, or sporting event for free. They have to bypass multiple levels of Apple security in order to do this.
Apple's security is based on the "gatekeeper" model. You have to authorize any installation. If an installer looks fishy, Apple tries hard to dissuade you from installing. But in the end, Apple will allow you to install what you want. Once you do that, apps have more or less free rein do to what they want with their own data. Apple still provides protection for your personal data, which you can choose to disable.
But in many cases, 3rd party apps don't update their software for years, or even decades. That's what you are seeing here. It's a sign that the developer really isn't committed to the platform. You can expect problems with this software at any point in the future, if not now. Technically it may still work. But customers like yourself are likely to disable it. Then the app won't work. That will make people less likely to pour their money into that app. And that will make the developer less likely to support the app in the future. When you see these "unknown items" in your list of background apps, that's a sign that the developer has either given up on the app, or has a plan to make you pay for an upgrade.