Website LinkedIn.com has received some tough criticism as of late, after one security researcher revealed that the cookies used on the website leaves user accounts open to an online attack. In a recent blog, independent researcher Rishi Narang warned members of the business-oriented social network that the cookies found on the site may continue to remain active for up to one year. Extended Expiry Time Aids Hackers...the cookies remain active even after the user has logged out of their LinkedIn session. ... While LinkedIn continues to use an older cryptographic protocol for encryption called Secure Sockets Layer (SSL) in order...