In a survey of 583 U.S companies conducted by Ponemon Research on behalf of Juniper Networks, 90% of the respondents said their organisations' computers had been breached at least once by hackers over the past 12 months.
Nearly 60% reported two or more breaches over the past year. More than 50% said they had little confidence of being able to stave off further attacks over the next 12 months.
Those numbers are significantly higher than findings in similar surveys, and they suggest that a growing number of enterprises are losing the battle to keep malicious intruders out of their networks.
The survey comes at a time of growing concern about the ability of companies to fend off sophisticated cyberattacks. Over the past several months, hackers have broken into numerous supposedly secure organizations, such as security vendor RSA, Lockheed Martin, Oak Ridge National Laboratories and the International Monetary Fund.
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