|
Security includes: * {confidentiality} - preventing unauthorized access; {integrity} - preventing or detecting unauthorized modification of information. * authentication - determining whether a user is who they claim to be. * {access control} - ensuring that users can access the resources, and only the resources, that they are authorised to. * {nonrepudiation} - proof that a message came from a certain source. * availability - ensuring that a system is operational and accessible to authorised users despite hardware or software failures or attack. * privacy - allowing people to know and control how information is collected about them and how it is used. Security can also be considered in the following terms: * physical security - who can touch the system to operate or modify it, protection against the physical environment - heat, earthqua スポンサード リンク
|