Executives across brands and agencies are changing their practices in light of Sony's massive data breach. For example, David Angelo, founder and chairman of the advertising agency David & Goliath, told The Los Angeles Times that his company is now having meetings and talking in person instead of using email to discuss important projects. Hewlett-Packard is using the example to educate employees on how to use email.

The Chinese government seems to have blocked people in China from logging into their Gmail accounts using third-party email clients, a workaround adopted by many people who use Google in China. Google data reveals that traffic to Gmail from Chinese servers hit zero this week.

Australian internet service providers have until January 9th, 2015 to offer send in proposals for they will comply with new data retention laws. The country's Communications Alliance notified the carriers on Christmas Eve of the new requirement in an email with information on the government's new proposed data retention obligations.

FedEx phishing emails have been in circulation this week. The emails claim to be a shipping label but the email attachment is loaded with malware and shuts down a user's computer.

Harvard students got a strange email on Christmas morning. The email came from an unknown sender that has been sending threatening messages to students. The email apologized for the previous emails. "I'm so sorry about the threats against you with death threats," read the email, which landed in about 100 inboxes. "I would never kill someone."

Chimpadeedoo is a new app that allows Mailchimp users to add different email marketing lists to a Mailchimp account from the mobile phone. The free app lets users add new names to their marketing list, as well as configure opt-in settings and enable a password locks from within a mobile app. Marketers can even switch between lists using the app.

Tipbit has updated its mobile email app for iPhone aimed at making the email experience better on mobile phones. The update brings an improved interface and faster search results for items that aren't stored on the device. There is also better integration with social media.

Sony Pictures Entertainment has threatened Twitter with legal action for not removing tweets shared by its users containing private emails of Sony executives. In a letter sent to Sony, Sony's attorney David Boies claims that studio will hold Twitter responsible for damages or losses resulting from the dissemination of this private data.

The National Labor Relations Board are now requiring companies to allow workers to use their work email and phone to discuss union business. The rules state that unions can access employees' private information in order to discuss their mission with workers. The Associated Builders and Contractors expressed concern that these new rules "will lead to the unsolicited distribution of employees' personal contact information."

Ireland has come out to support Microsoft in its appeal to the DOJ against a court order demanding the tech company to hand over customer emails which are stored on a server in Dublin. Ireland filed papers in court on Tuesday claiming that the U.S. is obligated to respect Irish sovereignty. The Irish government invited the U.S. government to request the data from them.