Most websites make their privacy policies available to site visitors. A privacy page should specify any personally identifiable information that is gathered, such as name, address and credit card number, as well as other things like order history, browsing habits, uploads and downloads. The policy should also explain if data may be left on a user’s computer, such as cookies. According to best practices, the policy should disclose if data may be shared with or sold to third parties and if so, what the purpose is.
There is no concensus as to whether or not privacy policies are legally binding and no consistency in enforcement. In the United States, the Federal Trade Commission (FTC) promotes enforcement of existing laws and industry self-regulation. Generally for the FTC, data breaches are not sufficient for legal action if there is no loss of money associated with the breach.
The European Union’s Data Protection Directive has confronted companies such as Google about privacy changes that went contrary to E.U. law, threatening sanctions on the massive company.