Around 53% do not have confidence in their security systems.
Around 64% believe that their organisation is a possible target for nation-state cyberattacks, according to a survey conducted by Tripwire at the Black Hat USA 2015 security conference in Las Vegas.
Around 86% of the respondents claimed that they have seen an increase in targeted attacks at their networks over the last year.
Only 47% said that they have confidence in their organisations’ ability to detect and respond to a cyber attack during last year.
However, 53% claimed that they do not have the visibility necessary for finding out the threats targeting their networks.
According to the study, 64% of the respondents admitted that attacks on their networks are now 20% or more when compared to last year, and 41% said that there has been significant increase in the number of cyber attacks that were successful in the last 12 months.
Tripwire director IT security and risk strategy Tim Erlin said: "Organisations know they are being actively targeted and that their current capabilities aren’t enough to consistently detect and defend against these attacks.
"While new defensive technologies are constantly being developed organisations are hard pressed to deploy these new tools effectively.
"In many cases, these organizations would do well to evaluate their investment in foundational security controls. Although these controls are not new, they are the backbone of effective breach detection and response."