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.
Voters to make major decisions this weekend
Voters head to the polls this weekend to decide two closely watched national issues.
Moves to toughen juvenile justice
There are moves to toughen up how courts can deal with juvenile offenders, including giving more leeway to treat a young offender as an adult.
New Geneva school already full
A brand-new Geneva school is already full.
Mpox infections on the rise
Health authorities here are reporting a rise in mpox infections this year, mirroring trends seen elsewhere in Europe.
Possible relief for over debt
Parliament has approved a new right to debt erasure for the chronically indebted.
Border closures and checks start today
Cross border commuters face heavy delays from today as border checks and closures start, due to increased security measures ahead of the G7 summit.
