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In order to comply with regulations or in response to possible data breaches, many companies are considering implementing tape encryption as a security option. Encryption is only one aspect of a tape security strategy, especially given the removable nature of tapes. For most enterprises, not all data will need to be encrypted. A tape encryption initiative can be completed in tiers, with highly sensitive data that would be costly or embarassing if lost encrypted first. Data encryption can be performed throughout the stack, giving companies the ability to encrypt individual information sets at levels appropriate to the data's confidentiality. Poor implementation of a tape encryption initiative may result in over- and under- protected data, degraded application performance, or service interruption. New encryption technologies are making the tactic less expensive and easier to implement than in the past.