A survey conducted by Securosis and financed by data security vendor Imperva of 1,100 security professionals yielded some interesting and conflicted results. The survey evaluated perceived effectiveness, not actual effectiveness, of several technologies (not specific products). The responses came from professionals across all major verticals and from organizations of varying sizes. Job titles included IT manager, IT security manager, IT security professional.
The top ten most effective controls were perceived to be:
Securosis notes:
One major ?aw in the survey is that, despite our quality assurance and editing before releasing the questions, web application ?rewalls were omitted from the potential response list, and rated well in the previous questions. WAF was also the most cited write in control, followed (again) by user education.
Here's what the respondents thought were the least effective:
What's interesting is that e-mail filtering came in as number three on the list of most effective list and number one on the "least effective" list.
"There will always be a gulf between perceived and actual security," says Chris King, director of product marketing at Palo Alto Networks. "Aside from the fact that the latter is difficult to measure (all we can measure is our opinion of its effectiveness), threats are a moving target."
Securosis' survey found that most controls were actually pretty effective. "Around half of respondents reported that nearly half of the controls completely or dramatically reduced incidents."