Real-time scanning is not enabled on a MacOS Mojave (10.14) or later MacOS computer

Issue:

This article applies to the following WithSecure products: Elements Agent for Mac, Client Security for Mac

WithSecure product is installed on a Mac computer but the user interface shows that computer is not protected and that the real-time scanning is not activated.

Resolution:

After installation of the Mac product on macOS Mojave or later, a red F-Secure (X) icon may appear when running real-time scanning.

This is due to a new security feature, which was been introduced in macOS High Sierra (10.13).
During first time installation, the security feature requires you to allow system software from F-Secure.
Until the software is allowed, real-time scanning will fail.

Once the installation is complete, allow WithSecure software as follows:

1. Go to System Preferences > Security & Privacy, and select the General tab.
2. Click Allow. Once this is done, the icon status changes to normal and the error message disappears.

Note: The steps described must be performed locally on the machine and not remotely.

Full instructions with pictures: https://community.f-secure.com/psb-en/kb/articles/5688-issue-with-real-time-scanning-after-computer-protection-for-mac-installation-on-macos-high-sierra

In case the mentioned solution above does not work, carry out the following solutions one by one and verify if the real-time scanning could be enabled.

Solution 1:

1. Check in System Preferences > Security & Privacy > Privacy > Accessibility and remove or disable 3rd party accessibility software such as the Better Touch Tool or MagicPrefs.
2. Go to System Preferences > Security & Privacy.
3. Select the General tab.
4. Click the Allow button.

Solution 2:

1. Check in System Preferences > Keyboard > Shortcuts > Full keyboard access to enable full keyboard access.
2. Go to System Preferences > Security & Privacy, and select the General tab.
3. Use Tab key to move the focus on the Allow button
4. Press Spacebar on your keyboard while the Allow button is active.

Solution 3:
Add F-Secure Team ID (6KALSAFZJC) to the list of approved kext developers by using "spctl kext-consent add 6KALSAFZJC" command in the Recovery mode.

1) Startup the Mac in recovery mode
2) Click the Utilities menu and select Terminal.
3) Enter the following command:
spctl kext-consent add 6KALSAFZJC
4) Press Enter
5) Close the Terminal app and restart

Refer to the following page for more detail information: 
https://developer.apple.com/library/content/technotes/tn2459/_index.html#//apple_ref/doc/uid/DTS40017658-CH1-TNTAG4