2011 seems to cary on with the trend of security companies acquisitions by big IT names. This is now the turn of DELL to buy SecureWorks, planning to offer managed security services in a near future.

Another interesting acquisition is that of Immunet by Sourcefire, which should help the later company to grow its business “in the cloud”.

SaaS and “in the cloud” are two 2010 themes which are likely to grow even more this year.