If it is easier to use someone else's web site, people will do that rather than use your web site. Design implications Make things as easy as possible. People who enjoy puzzles and challenges can get them in abundance elsewhere Design for the customer experience, not to match internal systems or structures Be consistent with general practice Add value to the online transaction, so that customers have a clear reason to use your web site. Humans circumvent security measures Many people disclose their PIN to others. Many people allow colleagues to 'impersonate' them to log on to computers and networks.
Many people use the same PIN for multiple purposes.
People decide for themselves what level of security they will accept. Design implications Don't assume that people follow your current security regime Find out what people do in the real world before devising a security system Don't try to impose an unrealistic security system. Consider allowing people to use their real names or email addresses Provide a mechanism for people to retrieve lost user names and passwords. Humans are busy Most people have a task in mind when they approach a web site. It is unlikely that they will be interested in watching a video or animation if it prevents them from completing their task.