Usability

User errors or delays while performing security-critical tasks can lead to undesirable or even disastrous consequences. The impact of both accidental and intentional distractions on users in such situations has received little investigation. In particular, it is unclear whether and how sensory stimuli (e.g., sound or light) influence users' behavior and trigger mistakes. Better understanding of the effects of such distractions can lead to increased user awareness and countermeasures.

The Internet has become an integral part of everyday life. The great benefits of the Internet also come with potential risks, security issues, and privacy concerns. Internet security products are usually employed to inform users about security incidents.

In phishing, an attacker tries to steal sensitive information, e.g., bank/credit card account numbers, login information, etc., from Internet users. The US society and economy are increasingly dependent on the Internet and the web, which is plagued by phishing. One popular phishing method is to create a site that mimics a good site and then attract users to it via email, which is by far the most popular medium to entice unsuspecting users to the phishing site.

As higher education institutions consider moving services to the cloud to save costs and improve collaboration, significant challenges to successful large-scale adoption still exist. Institutions are unwilling to risk cloud deployment because provable technological defenses have thus far been lacking. Control over sensitive data is relinquished without the institution's knowledge, liability is shifted and data breach risks are significantly increased. Further, regulatory-sensitive data has become an increasingly attractive target.

Whether it is on their smartphones, in their browsers or on social networks, people are confronted with an increasingly unmanageable number of privacy settings. What is needed is a new, more scalable paradigm that empowers them to regain control over the collection and use of their data. This is particularly the case for mobile apps people download on their smartphones. These apps have been shown to collect and share a wide variety of sensitive data, with users unable to keep up.