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joltsik
Contributing Writer

Users Are Not Embracing Storage Encryption for Data Erasure

Analysis
Jun 22, 20092 mins
Cisco SystemsData and Information SecurityEncryption

security

While large organizations are implementing encryption technology for laptops, tape backup and networks, the vast majority have not added encryption capabilities on their enterprise storage systems. Since most big storage systems reside in the data center, CISOs believe that existing physical and electronic security safeguards provide adequate protection given the risks.Okay but what about data destruction. Today most firms employ physical or electronic processes to destroy the data resident on disk drives before sending them off-site for retirement or maintenance. If all disk drives were encrypted, you could simply delete the encryption key associated with a particular drive and voila, all the data becomes unreadable. This could automate the whole data destruction process and thus save large organizations lots of time and money.ESG agrees that this is true in theory but users don’t seem to have a big enough problem with data destruction to render key deletion the “killer app” for encrypting storage. In a recent ESG Research survey, only 15% of large organizations (i.e. 1,000 employees or more) claim that data destruction processes require a “significant” amount of finanacial and operational resources (while 42% said that data destruction processes require a “marginal” amount of finanacial and operational resources and 27% said that data destruction processes require a “minimal” amount of finanacial and operational resources). You can download an ESG Research Brief with more detail at: http://www.enterprisestrategygroup.com/ViewSecureDocument.asp?ReportField=ReportBodyAttachment&ReportID=1229&ReportType=Brief.In the future, disk encryption will probably become mainstream but this will happen as a result of supply side economics rather than demand side requirements. In other words, when disk drives come standard with encryption capabilities at little to no extra cost, users will deploy this technology as part of a layered defense. Until then storage encryption will remain a small niche in the enterprise market.

joltsik
Contributing Writer

Jon Oltsik is a distinguished analyst, fellow, and the founder of the ESG’s cybersecurity service. With over 35 years of technology industry experience, Jon is widely recognized as an expert in all aspects of cybersecurity and is often called upon to help customers understand a CISO's perspective and strategies. Jon focuses on areas such as cyber-risk management, security operations, and all things related to CISOs.

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