Security Think Tank: What are the risks associated with social-
media use, and who owns these risks?  Is social media a security
problem? What are the security risks associated with social-
media use, and who owns these risks?   Deeper relationships must
be balanced with reputational risk  Avtar Sehmbi, member of
ISACA London security advisory group, head of security and IT
risk management, Deloitte  Let's start by asking whether social
media presents an increased security threat. Leaving aside the
much-promoted benefits of collaboration and interactivity, as a
risk and controls expert I believe social media do indeed
introduce an increased level of risk with several complex and
evolving dynamics which need to be understood and managed so
that our businesses can operate securely.  My first challenge is
to fully understand the risks associated with social media.  I
count myself lucky in that my role as head of security at
Deloitte means I get to work alongside one of the best advisory
teams in the market. Our In