Data Domain Introduces Secure Data Shredding For Deduplication Storage

Press Release

New Software Feature Supports Clearing and Sanitization Requirements of Enterprise and Government Customers

SANTA CLARA, Calif. — May 18, 2009 —Data Domain, Inc. (Nasdaq: DDUP), the leading provider of deduplication storage systems, today announced the introduction of secure, file-level data shredding capabilities as a feature in its Retention Lock software option. This is the industry's first inline deduplication storage solution designed to enable electronic data shredding on a per-file basis. This new shredding feature gives organizations the confidence that deleted files have been disposed of in an appropriate manner, helping them maintain confidentiality of classified material, limit liability and enforce privacy requirements.

Data Domain's approach securely overwrites blocks on disk belonging uniquely to deleted deduplicated files. This way, even small data sets stored inappropriately, for example social security numbers, can be cleared from all disks. As required, safe deduplicated data can be efficiently migrated to another system, quickly freeing the entire original system for proper disposal.

Shredding capabilities are growing in importance for compliance with, for example, the US Department of Defense (DoD) 5220.22-M Clearing and Sanitization Matrix and the National Institute of Standards and Technology (NIST) Special Publication 800-88 Guidelines for Media Sanitization. Data Domain's secure shredding feature was designed to meet these DoD and NIST standards. Government agencies and businesses can now sanitize confidential data that is accidentally written into an unapproved device or shred any content that is no longer required for internal or external purposes. Benefits include;

• Simple: Shredding of data happens in-place, with data in its native deduplicated state, avoiding the hassle and expense of setting up additional environments to extract data and deduplicate it again. During the System Sanitization process non-deleted data is available for restore at all times.
• Secure: By leveraging the locking features of Retention Lock, files may also be protected from accidental deletion, ensuring only the correct files are shredded.
• File-level: An authorized administrator can remove only the unique content of deleted files from the deduplicated environment, using a DoD/NIST compliant algorithm and procedures.

"Enterprise Strategy Group (ESG) estimates that organizations are going to archive 100,000 petabytes over the next three years with much of this retention driven by compliance and electronic discovery requirements," said Brian Babineau, senior analyst with ESG. "We believe two of the reasons why companies are saving so much data is they do not have an efficient means to eliminate redundant content with archive storage systems and they cannot completely delete data when the retention policy expires. With its latest release of Retention Lock, Data Domain is solving both of these pain points - a win-win for customers. By following government standards for digital data shredding, customers can be assured that the information does not exist anymore - a third win for those who have been through the process of believing that sensitive or confidential information is gone, only to have it reappear due to incomplete deletion processes."

"Shredding is required for secure deployment of deduplication storage; the alternatives for deletion of specific blocks in a dedupe store are very awkward and costly," said Brian Biles, VP of Product Management at Data Domain. "Data Domain Retention Lock's shredding features serve to further expand the scope of secure deployments backed by our deduplication storage."

Pricing and Availability
Data Domain Retention Lock software is available today. Pricing starts at $1,500. Existing Retention Lock software users can upgrade to Data Domain OS 4.6 to access the new shredding features at no cost.

ABOUT DATA DOMAIN
Data Domain® is the leading provider of deduplication storage systems. Thousands of companies worldwide have purchased Data Domain systems to reduce storage costs and simplify data management. Data Domain delivers the performance, reliability and scalability to address the data protection and nearline storage needs of enterprises of all sizes. Data Domain products integrate into existing customer infrastructures and are compatible with leading enterprise backup and archive software products. To find out more about Data Domain, visit www.datadomain.com.

Data Domain Forward-Looking Statements
This press release contains forward-looking statements including; "Shredding capabilities are growing in importance for compliance with, for example, the US Department of Defense (DoD) 5220.22-M Clearing and Sanitization Matrix and the National Institute of Standards and Technology (NIST) Special Publication 800-88 Guidelines for Media Sanitization" ; "Enterprise Strategy Group (ESG) estimates that organizations are going archive 100,000 petabytes over the next three years with much of this retention driven by compliance and electronic discovery requirements" ; and regarding our ability to reduce the amount of stored back-up data and associated storage costs and to provide faster access to data and advanced levels of data protection; and other statements identified by forward-looking words such as "anticipated," "believed," "could," "estimate," "expect," "intend," "may," "should," "will" and "would" or similar words. These forward-looking statements involve risks and uncertainties, as well as assumptions that, if they do not fully materialize or prove incorrect, could cause our results to differ materially from those expressed or implied by such forward-looking statements. The risks and uncertainties include: the impact of the global recession and continuing weakening of general economic and market conditions and customer budgets for information technology spending; our ability to react to trends and challenges in our business and the markets in which we operate; our ability to anticipate market needs or develop new or enhanced products to meet those needs; market acceptance of our products; our ability to scale our distribution channels; our ability to recruit and retain personnel; our ability to compete in our industry; our ability to maintain and expand relationships with technology partners; our ability to protect our intellectual property; shortages or price fluctuations in our supply chain and the performance of our contract manufacturer; general political, economic and market conditions and events; and other risks and uncertainties described in the "Risk Factors" section of our Annual Report on Form 10-K for the fiscal year ended December 31, 2008 and our other documents filed with or furnished to the Securities and Exchange Commission. All forward-looking statements in this press release are based on information available to us as of the date hereof, and we assume no obligation to update these forward-looking statements.

Data Domain, the Data Domain logo and Global Compression are trademarks or registered trademarks of Data Domain, Inc. All other trademarks used or mentioned herein belong to their respective owners.

Contact Information

Data Domain

Ed Luboja
203-210-7404
press@datadomain.com