Leo says that the first ransomware appeared on the Mac last week. It was through a bittorrent program called Transmission. A bad guy hacked it and added a malware program to the installer that would encrypt the user's data. It only happened for a few hours though. Apple has also yanked the certificate of the company that tried it, updated the signatures of the malware screener on the Mac, and it's extremely unlikely that anyone else will get infected by it.
Christie is looking for a wireless all-in-one printer. She needs one that doesn't need a router because she doesn't know the router password. Leo says to just reset the router and password. Epson has some great wireless printers, like the Artisan. Canon's Pixma is another good option though, and Brother makes a good color laser printer. Standard laser printers are more economical over time, especially if Christie isn't doing photos. InkJets produce better color. So if she's planning on doing photos, then she should go with InkJet. She can get a laser printer for under $100. But if Christie wants an inkjet, then nobody does better than Epson, especially with all-in-ones. Epson's new EcoTank 4550 is great because it comes with a 2 year supply of ink.
(Disclaimer: Epson is a sponsor)