There are many international laws, treaties and pacts which govern data transfers and privacy policies between countries. Some provisions are voluntary while others are mandatory. For example, the EU-U.S. and Swiss-U.S. Privacy Shield Framework is way for U.S. Companies voluntarily comply with E.U. and Swiss Law; there may be pros and cons for your company to do so. For more information on which international privacy laws apply to your particular product or service, you should consult an attorney.