Over the course of a year, a case study by Google & the University of California has identified that there could be 1.9 billion usernames and passwords that have been exposed via data breaches and traded on the black market. As Internet users expand, relying and utilising social networks, online shopping, and data stored in the cloud, As identified the email account underpins the security of the users online entire identity. If this information is exposed a hijacker can reset passwords and gain access to private data. Impersonation, theft and any number of malicious activities can then take place. In this report Google have identified that to make email accounts and online transactions safe, users need to create strong passwords and the accounts being used possibly use an unphishable two-factor authentication. Case Study Google & University of California