# Survey Security

## 🔑 What is survey security ?

The survey security let you define how the survey respondent data will be encrypted. Setting the [data classification](https://docs.ngsurvey.com/data-encryption/data-classification) will affect following data from your survey on newly collected data.

* Respondent IP.
* Respondent user agent.
* Respondent username. 
* Token First name.
* Token Last name.
* Token email.
* All saved security item attributes.

## 🔅 Survey security properties

* **`Public PGP encryption key`** Public PGP key that will be used to encrypt all the data that have been classified as [restricted](https://docs.ngsurvey.com/data-encryption/data-classification/restricted).
* **`Data classification`**Set the [data classification](https://docs.ngsurvey.com/data-encryption/data-classification) to define the [encryption](https://docs.ngsurvey.com/data-encryption) level for text based answers.