The bad news is that virus-creators are getting a whole lot more sophisticated and so you may find that your computer will block you from downloading and/or installing an antivirus program. You may find, it’s just getting overloaded, especially if it’s getting older. In other words, before you start panicking about malware, try showing your Mac a bit of love and giving it a clean-up and tune-up. It's great that Mac owners are now much more aware of cybersecurity and are taking steps to protect their computers against attack, but it’s also important to remember that performance issues can be caused by a number of reasons, not just by viruses, even when you’re talking about highly-specced computers like the average Mac. First of all, make sure your issue is actually malware
