In a notable shift, Apple is now recommending that Mac users install anti-virus software to help users secure their systems. In a technical note quietly published to its support site on Nov. 21, Apple issued the following advice: “Apple encourages the widespread use of multiple anti-virus utilities so that virus programmers have more than one application to circumvent, thus making the whole virus writing process more difficult.” This is news to me. Just under three months ago, I asked an employee at our local Apple store whether I needed anti-virus for my MacBook, and was told not to bother, that it was not necessary. I wonder if this means Apple will stop running television ads saying Mac users don’t have to worry about malicious software? Security Fix hears from readers constantly wondering whether they should secure their Macs. I suspect this may be because more people are choosing to purchase