Along with prepackaged masking rules, TCS' solution created a custom data masking technique to mask individual CPR numbers. A built-in masking technique masked 10-digit account numbers consistently across heterogeneous data platforms, including Mainframe DB2, IMS DB, HP Tandem no-SQL and Enscribe files, Salesforce, Flat files and relational databases. Taking over the entire process of data provisioning, TCS' DataPlus automated the process of PII data discovery and data masking while processing 8.6 TB of data. We helped TDC discover sensitive data attributes across more than 100 applications using diverse data stores. Automating test data provisioning for TDC's newly-built test environments, DataPlus? dynamic data masking capabilities also enabled GDPR compliance. Supporting varied data technologies in the TDC landscape, our domain knowledge and technical expertise allowed the company to create production-like test data by keeping interapplication relationships intact.