System Extension Blocked

Avatar Roy Rainford
A pop-up appears when starting up my iMac saying: "A program tried to load new system extension(s) signed by 'F-Secure Corporation'. If you want to enable these extensions, open Security & Privacy System Preferences".
I find that F-Secure Corporation (formerly Data Fellows) is a Finnish cyber security and privacy company based in Helsinki. Have no idea what program it's connected with. Anyone know?

Re: System Extension Blocked

Avatar Mick Burrell
If it appears when starting the Mac, look in System Preferences>User & Groups and click the Login Items tab to see what programs are set to run at startup. If nothing there looks odd, you could try removing them one at a time and restarting to see which one is bringing it up.