The Federal Intelligence Service says it is monitoring the activities of 41 people who it considers a threat to the security of the country.
In a statement to the SonntagsZeitung, the service says the radical Islamic scene has been expanding in Switzerland in recent years.
It adds it believes the most likely threat is an attack by a lone individual against a weakly protected target such as a crowd or property.
But it also stresses that there is no evidence of an immediate threat at the moment.
Bern preparing for fuel shortages
Switzerland is bracing for possible fuel shortages after the closure of the Strait of Hormuz disrupted global oil supplies.
Switzerland becoming the new Dubai?
Switzerland is seeing increased interest from expatriates leaving Dubai amid tensions linked to the conflict with Iran, with the canton of Zug emerging as a key destination.
Court slams deportation decision - man dead
A deportation case is sparking controversy after the death of a 29 year old Ukrainian man who was returned from Zurich to a war zone.
Housing scam rampant
Police are warning of increasingly sophisticated rental scams targeting people searching for housing online.
Asylum applications could be carried out abroad - but will be difficult
A new government report says asylum applications carried out abroad would be legally possible, but difficult to implement.
Move to allow cancer survivors to refresh health insurance
Cancer survivors could soon gain stronger protection when applying for private insurance.
