On December 11th, a moratorium on taxing the Internet is set to expire, which could expose US citizens to having to pay taxes for doing things like email and searching the Internet. Currently, there is a longstanding moratorium on such a tax, but unless Congress fails to take action, state and local governments would all of a sudden have the authority to tax the Internet.

In the latest move in the Sony Entertainment hack, Sony president Steven Mosko and co-chairman Amy Pascal have had the contents of their entire email inboxes leaked online. Guardians of Peace, the hacker group that has taken credit for the attack, posted links to the contents of both mailboxes on message boards online.

Hackers reportedly sent Sony executives an extortion email just days before breaking into the company's network and stealing private files. The threatened that a hack was looming which would cause "great damage" if "monetary compensation" was not exchanged. The email was sent to a few top Sony executives, including Michael Lynton and Amy Pascal, the co-CEOs of Sony Pictures.

French email marketing services firm Mailify has launched its tool in the United States. The company has 20,000 users in Europe and is now making its cloud-based responsive email marketing software available to marketers in the US. Marketers can use the tools to create campaigns and newsletters across devices using the tool.

The Florida-based Bright Mountain Acquisition Corporation has launched a private email network designed to keep emails from staying in the hands of the intended receiver. The tool is invite-only and does not allow members to forward or receive messages from outside of the network.

The FBI is investigating a number of emails that hackers sent to certain employees of Sony Pictures Entertainment, revealing the strategy behind its cyberattack last week. The law enforcement agency is trying to track down the people responsible for the attack, who have been calling themselves Guardians of Peace - the same group that took credit for last week's attack. "Removing Sony Pictures on earth is a very tiny work for our group which is a worldwide organization. And what we have done so far is only a small part of our further plan," the threatening email read.

Shoppers that received personalized emails after abandoning their shopping carts returned to make a purchase, according to new research from Salesforce. Salesforce's Predictive Intelligence Benchmark Report looked at about 140 million interactions between consumers and Salesforce retail customers. The research revealed that 60 percent of those emails resulted in a sale within 24 hours.

Apparel retailer ShopJustice.com sent 19 emails during the five-day period from Thanksgiving to Cyber Monday, according to new research from email services firm Listrak. This is more than any other Top 100 retailer tracked. Consumers received a lot of emails this week. According to the research, retailers sent 41.2 percent more emails on Thanksgiving Day this year than they did last year, 41.8 percent more on Black Friday and 32.6 percent more on Cyber Monday.

Email is bad for your health, according to a new study in Computers in Human Behavior, which found that people who checked their email less often during the work day experienced less stress. Kostadin Kushlev and Elizabeth Dunn of the University of British Columbia compared groups of workers and found that the group that only checked email three times a day, as opposed to those that responded to email in real time, experienced a lot less stress. The story has been gaining headlines which might lead people to check email less.

Security experts are warning that phishing tactics have gotten more sophisticated putting more companies are risk of threat. For instance, a group called FIN4 was just caught stealing the emails of executives of leading companies in order to game the stock market. The group was able to infiltrate by enough email usernames and passwords to gain control of the entire network's email inboxes.