To protect our system and computer we should make sure that data which we download is clean. Everytime we bring data to our system or user upload data such as file attachments, we must make sure that data is free from viruses and trojans.

SFTP (SSH File Transfer Protocol) is a secure file transfer protocol. It runs over the SSH protocol. It supports the full security and authentication functionality of SSH.

Ananyzing the ouput of a simulation model is important. How can we be sure that our output is proper and will not hurt an experiment result using those outputs.