Hackers are gearing up for the big holiday shipping season with a new collection of email that are just too good not to click on. Hackers pose as Amazon and eBay receipts, based around the fact that people are expecting these confirmations to come in. Some users refuse to believe that the emails are malicious, security analyst Troy Gill told CSO Online. He recommended that companies warn their employees not to open attachments from major shopping or travel sites. Gill: “It’s always a good idea to go right to the horse’s mouth””]