Encryption vs Tokenization - Which One is Better for Data Protection?

October 15, 2021

Introduction

When it comes to protecting data, there are various methods that businesses can employ. Two of the most common data protection techniques are encryption and tokenization. Both encryption and tokenization are used to protect sensitive data by rendering it unreadable and unusable to unauthorized individuals. However, which one is better for data protection? In this article, we will provide a factual, unbiased comparison between encryption and tokenization to determine which one is better for data protection.

Encryption

Encryption is a process that converts data into an unreadable format that can only be decrypted with the appropriate key or password. The process is widely used by businesses to protect sensitive data, including financial information and personal identification data. According to Thales, 47% of all data breaches in 2019 were caused by stolen or lost credentials.

Strengths of Encryption

  1. Encryption is considered one of the most effective methods of data protection.
  2. Encryption can provide secure data transmissions even over unsecured networks.
  3. Encryption helps to ensure the confidentiality and privacy of data.

Weaknesses of Encryption

  1. Because encrypted data requires a decryption key or password, it can be challenging to manage and protect.
  2. Encryption does not offer any data format preservation, which can cause issues for some applications.
  3. Encryption can be a resource-intensive process, which can negatively impact system performance.

Tokenization

Tokenization, on the other hand, is a data protection technique that replaces the sensitive data with a non-sensitive surrogate, known as a token. The token represents the original data, but it is not the actual data. The actual data is stored in a token vault that can only be accessed by authorized personnel. Compared to encryption, tokenization is a relatively new technique and is primarily used in the payment industry to tokenize credit card numbers for security reasons.

Strengths of Tokenization

  1. Tokenization can be more secure than encryption since the original data is not stored with the token.
  2. Tokenization does not require the same level of key or password management as encryption.
  3. Tokenization can be faster and more efficient than encryption.

Weaknesses of Tokenization

  1. Tokens need to be stored in a secure token vault that requires additional security measures.
  2. Tokenization can be more complex to implement than encryption, especially for legacy systems.
  3. Tokenization can present integration challenges when dealing with third-party vendors.

Which One is Better?

Encryption and tokenization both have their strengths and weaknesses when it comes to data protection. The choice of which data protection technique to use will depend on the specific needs of the business. Some industries, such as healthcare and finance, have regulations that specify the type of data protection that should be used.

Ultimately, it is essential to employ a data protection technique that will safeguard confidential and sensitive data. Encryption is more widely used and offers a proven track record of securing data, while tokenization offers a faster and more efficient solution that may be more suitable for some businesses.

Conclusion

In conclusion, the choice between encryption and tokenization is dependent on the business's specific needs. Both data protection techniques have their strengths and weaknesses. While encryption offers a proven track record of security, tokenization offers faster and more efficient processing. Businesses should consult with cybersecurity professionals to make an informed decision on which technique to employ.

References

Thales: Risk of Greatest Data Breaches in 2019.


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