[CentOS] Bourne shell deprecated?

Wed Apr 27 01:45:25 UTC 2016
Jack Bailey <jack at internetguy.net>

Hello List,

Today someone in a meeting claimed the Bourne shell is deprecated, one 
of the reasons being it supposedly has security issues.  Well that's all 
news to me, and I cannot find anything online to corroborate the claim.  
Is this true, is it a bash vs. Bourne FUD, or something else?