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  • 3 Steps for Data Assessment, Inventory & Classification

3 Steps for Data Assessment, Inventory & Classification

By Travelers Risk Control

Know Your Data and How to Protect It.

Because businesses and organizations collect many different types of information, to help quantify their cyber security risk exposures, companies should first understand the types of information they are collecting, storing and sharing. This information can range in complexity from a simple inventory of products to personal information, including private health and financial records. Personal and customer information may be subject to federal, state and local regulations, Payment Card Industry standards, or perhaps foreign privacy standards.

While having a data security policy is the first step to help protect your data, the next logical step is to inventory all the data you handle during the course of business. This can help you classify it based on its confidentiality to determine who should be authorized to access it and to determine the level of data security needed.

What Kind of Data are You Handling?

Here is a three-step process that can help companies understand and classify their various data assets.

3 steps for cyber data assessment 3 steps for cyber data assessment

Step 1: Data Inventory

Determine the type of data you store.

  • Personally Identifiable Information: Often referred to as PII, this information may include such things as first and last names, home or business addresses, email addresses, credit card and bank account numbers, taxpayer identification numbers, medical records and Social Security numbers. It also may include gender, age, date of birth, city of birth or residence, driver’s license number, and phone numbers.
  • Customer information: This may include payment information such as payment card numbers and verification codes, billing and shipping addresses, email addresses, phone numbers, and purchasing history, among other data.
  • Intellectual property: This may include proprietary and sensitive business information such as financial records, product designs, human resource records and internal correspondence and reports. It also can include intellectual property of others with whom you have a business relationship, including customers and vendors.

Step 2: Data Classification

Classify the data and establish access privileges based on type and level of confidentiality.

  • Restricted (highly sensitive): This classification applies to the most sensitive business information intended strictly for use within your company. Its unauthorized disclosure could harm your company, business partners, vendors and/or customers in the short and long term.
  • Confidential (sensitive): This classification applies to information about or belonging to customers, employees and information that your company is obligated to protect. This can also apply to information about your own company.
  • Internal use only: This classification applies to sensitive information that is generally accessible by a wide internal audience and is intended for use only within your company. While its unauthorized disclosure to outsiders should be against policy and may be harmful to your company, the unlawful disclosure of the information is generally not expected to impact your company, employees, business partners, vendors and the like.
    Public (general): Information that is generally available or is intended for distribution outside your company.

Step 3: Periodic Data Reassessments

Periodically reassess the classification of the data and who has permission to access it. An information retention policy should include guidance on what types of information should be retained, how long it should be retained and procedures for disposing or destruction of unneeded data. Audit all data and information that you store to be sure it is classified properly, and to determine if unneeded data may be destroyed.

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