Mandatory caller ID is proving effective: Fraudulent calls made in the name of public authorities have fallen by over 75 per cent

Measures to combat fraudulent calls made in the name of public authorities are proving effective. The number of reports fell by over 75 per cent in July following the extension of the mandatory caller ID requirement to calls from abroad that use spoofed Swiss numbers. Nevertheless, the threat of cybercrime remains high: in the first half of 2026, the National Cyber Security Centre (NCSC) received 27,128 voluntary reports and 200 mandatory reports of attacks on critical infrastructure. The latest NCSC semi-annual report also highlights how cybercriminals are using AI to carry out increasingly personalised attacks.