1. California Consumers’ Privacy Act. https://oag.ca.gov/privacy/ccpa
2. International Data Corporation Forecast. https://tinyurl.com/y694wg2v
3. IoT Line Up. http://iotlineup.com/
4. Privacy Grade Website. http://privacygrade.org/third_party_libraries
5. Spearman Coefficient. https://tinyurl.com/nctpfudu