Data masking or data obfuscation is the process of modifying sensitive data in such a way that it is of no or little value to unauthorized intruders while still being usable by software or authorized personnel. Data masking can also be referred as anonymization, or tokenization, depending on different context.
The main reason to mask data is to protect information that is classified as personally identifiable information, or mission critical data. However, the data must remain usable for the purposes of undertaking valid test cycles. It must also look real and appear consistent. It is more common to have masking applied to data that is represented outside of a corporate production system. In other words, where data is needed for the purpose of application development, building program extensions and conducting various test cycles. It is common practice in enterprise computing to take data from the production systems to fill the data component, required for these non-production environments. However, this practice is not always restricted to non-production environments. In some organizations, data that appears on terminal screens to call center operators may have masking dynamically applied based on user security permissions (e.g. preventing call center operators from viewing credit card numbers in billing systems).
The primary concern from a corporate governance perspective[1] is that personnel conducting work in these non-production environments are not always security cleared to operate with the information contained in the production data. This practice represents a security hole where data can be copied by unauthorized personnel, and security measures associated with standard production level controls can be easily bypassed. This represents an access point for a data security breach.
^"Information Management Specialists". GBT. Retrieved 24 August 2017.
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style mask, which is an eyes-and-nose diving mask with a built-in LCD display, commercially known as a DataMask, capable of providing various dive data from...
data through datamasking, row permissions, and role-based security, and can utilize database audit utilities to maintain audit trails for their data...
threshold of hearing Temporal masking (forward masking, backward masking) Simultaneous masking (also known as spectral masking) A compression algorithm can...
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