Hi guys
Absurd or not, as Treverus pointed out, it is indeed the law. You'll note that personal information can be transferred to the countries in Dawiz's list. For example, anywhere in the EU, or to the US if the company self certifies and a few a other small conditions are met.
However, as noted in that country list document (or at least, in the German one - my limited French makes me think it's there though), that's only for personally identifiable information pertaining to natural persons. Swiss law also enshrines the right to privacy for "juristiche Personen", or legal entities and such, which most other countries do not. Therefore, this information may not be disclosed abroad (indeed, the US-Swiss Safe Harbor agreement explicitly states that it covers natural persons).
Reading legalese can make someone's head spin, but I know of a Zürich law firm that maintains a website where the requirements are translated into simple English; check out
www.dataprotection.ch for more information.
Of course, if you need help assessing the impact of Swiss requirements on your business, or implementing the appropriate controls, I'd be more than happy to further discuss with you.