Hackers expose 453,000 credentials allegedly taken from Yahoo service 0 By Shannon Ortiz on July 12, 2012 News and Events, Security Awareness Hackers expose 453,000 credentials allegedly taken from Yahoo service Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on LinkedIn (Opens in new window) Share. Twitter Facebook Google+ Pinterest LinkedIn Tumblr Email