Compléter Computer SecurityVersion en ligne Activity for computer science. par Carla Pedrera 1 Security follows three objectives , that are , , . , and should be protected . Security measures are divided into groups . We have to introduce a to access to the resources . is applied to restore the system when it has been modified or damaged . Malicious softwares are called . We detect , block and remove the malicious softwares with an . Firewall is a or used to control connections and it doesn't allow non authorized access to the computer or to the network . Thanks to the if you have a problem with your system you can restore it to a previous state without losing the information . In wireless networks the information is transmitted by . is used to protect the information sent over the Internet .
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