Notice and opt-out (no law at the moment).

From a legal point of view, the Federal Act on Data Protection of 19 June 1992 (Bundesgesetz vom 19. Juni 1992 über den Datenschutz) and The Federal Law on Unfair Competition of 19 December 1986 (Bundesgesetz gegen den unlauteren Wettbewerb) apply to cookies.

There is no guidance from the Data Protection Authority or SDV.

IAB Switzerland has published guidance on the rules applicable to online advertising (Leitfaden. Recht und Onlinewerbung):