Computer Security

hack into = get into (a computer system) illegally

back up files = make a copy of your files cloud storage = online storage memory stick = a small piece of equipment you connect to a computer to store data [SYN flash drive or USB stick] download = copy data from the web upload = place data on the web update = make software(=the programs and other operating information used by a computer) more modern or up to date application = a program or piece of software designed to fulfil a particular purpose attachment = a computer file sent along with an email message