Need advice

hi all

 

i got a call from a company called abpc solutions saying that i had a hacker trojan on my computer they showed me some error messages ect they where going to give some software for free which they said is priced at £270 all i had to do was give them £70 for help and support services using my bank details which i never gave. dont know where they got the error messages from

i seen them do it but dont know how to access them

Hello! You can disable it as follows: Press Command + Space Bar (or F4) and type in "Terminal" to start the Terminal app. Run this command: sudo /System/Library/CoreServices/RemoteManagement/ARDAgent.app/Contents/Resources/kickstart -deactivate -stop
Enter the password for your device's admin account.

There is another method, more details here https://www.helpwire.app/blog/mac-remote-management/ 
You can also check there how to enable it if needed.