One, Two, Three Factor Security?
Getting security right is a balancing act. Too much, and the system that's protected becomes too difficult to use. Too little, and the repercussions can be enormous -- not only can fraud impoverish a company, but there are significant legal and practical implications if sensitive company data has been revealed or modified.
Security systems can be categorised by factors, the number of different ways that a user is authenticated before being allowed access. One factor security is by far the most common -- if you know your username and password, you're in.
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