You would be pretty naive to think that Apple Macs are bullet proof now. With their increasing popularity (which I love) they are becoming a bigger target for people to attack.
Therefore we recommend that you install some software (no need to pay) that will help keep you Mac protected…
With each new install of the Operating System Apple have been locking the system down and improving the security but it’s worthwhile loading some extra software so you don’t get caught out.
Sophos for Mac has been around for a while and generally works very well…. but another one you could try is Avast! Free Antivirus for Mac – see review here: https://uk.pcmag.com/antivirus/35311/avast-security-for-machttp://www.macworld.co.uk/macsoftware/reviews/?reviewid=3367786
Here’s a link to download: https://www.avast.com/en-gb/free-mac-security
Stay safe and happy computing!