[born2discover]

There is no such thing as a "constitutional right given to Swiss citizens to banking secrecy". Swiss constitution does not provide anything of sort [1]. The "Banking Secret" is defined at art. 47 of the Federal Law on Banking [2] and it has a rather narrow definition.

So there is no such thing as "banking secret" for Swiss residents. Hence even if Credit Suisse is nationalized, it won't change anything for their customers, except perhaps an increase in trust.

[1]: https://www.fedlex.admin.ch/eli/cc/1999/404/en [2]: https://www.fedlex.admin.ch/eli/cc/51/117_121_129/fr#art_47