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Satisfaction: Social Media system should ensure that users have a good experience when using the system and its security features

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3.1

The actual process of using Social Media system is fun and enjoyable

3.2

Most frequently used function keys on Social Media are placed in the most accessible positions

3.3

Social Media security-related prompts imply that the user is in control

3.4

Social Media security mechanisms of the system provide a sense of protection to the user

3.5

Social Media system fulfil its claimed capabilities

4

Error handling: Social Media system should provide users with detailed security error messages that they can understand and act on

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4.1

Social Media security-related error messages inform the user of the severity of the errors

4.2

Social Media system warn users if they are about to make a potentially serious error

4.3

Social Media system allow users to recover from errors quickly and easily

4.4

Social Media error messages of the system not interfere with the users’ work, whenever possible

4.5

Social Media system clearly ask for users’ confirmation of serious and possibly irrevocable actions

5

Process revocability: Social media system should allow users to revoke any of their security actions

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5.1

Social Media users can easily reverse their security and non-security actions

5.2

Social Media users can cancel operations in progress

5.3

Social Media system have “undo” and “redo” functions at the level of a single security action or for a complete group of security actions

5.4

Social Media system provide confirmation for actions that have drastic, possibly destructive consequences

5.5

Social Media system have a clearly marked exit

6

Help and documentation: Social Media system should make security help apparent and easy to find for users

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6.1

Social Media help function visible, for example, a key labelled HELP or a special menu

6.2

Social Media help function cover security and non-security related information