Tandem MOOC english

a situation in which business and financial activities are done in an open way without secrets so that people can trust that they are fair and honest

A computer virus is a type of computer program that, when executed, replicates itself by modifying other computer programs and inserting its own code. Some computer viruses are programmed to harm your computer by damaging programs, deleting files, or reformatting the hard drive. Even less harmful computer viruses can significantly disrupt your system's performance, destroy computer memory and cause frequent computer crashes.

WeTransfer is a simple way of file sharing. It works as if your e-mail account can support those large file sizes — you type in your email address and the recipient's email address, add a message, attach the file, and send. The recipient gets an e-mail with a link to download the file.