E-mail: Do without paper
The Internet is the fastest letter carrier in the world. Emails allow text messages and digital documents (e.g. graphics or Office documents) to be delivered anywhere in the world in just a few seconds. In 2012, 3.375 billion people around the world already had an active email account.
Wherever people congregate like this, crime is not far away. File attachments in e-mail messages are one of the most common ways in which Trojans and other malware are spread. As a general rule, you should never open a file attachment from an unknown sender. Customers of b.r.m. are specially warned in such cases: a header of the e-mail warns them that this is a highly dubious e-mail.