Overcoming the Challenges and Limitations of Data Tokenization
Tokenization replaces sensitive data with non-sensitive stand-ins called tokens. The mapping between the token and the original value sits in a secure service or vault. If attackers steal a database full of tokens, the stolen data has little value. This is why tokenization is popular for payment card industry (PCI) workloads, customer PII, and healthcare records. Yet tokenization is not magic. Like any control, it has weak points and practical limits. Teams often learn about those limits the hard way.