Telecommunications

Call Spoofing Protection 2026

March 1, 2026

•

5 min

•

checkeverything.ch Team

Call Spoofing Switzerland 2026: New measures against fake caller IDs from 1 January. How to protect yourself from phone fraud.

Note: This article contains affiliate links. If you purchase a product through these links, we receive a commission. There are no additional costs for you. Product selection is editorially independent.

Call Spoofing: New Protection Measures 2026

From 1 January 2026, stricter rules against call spoofing – the falsification of caller IDs on phone calls – apply in Switzerland. Further measures come into force from 1 July 2026. These changes are designed to better protect consumers from phone fraud.

What is Call Spoofing?

Call spoofing refers to manipulating the displayed phone number on a call. Fraudsters use this technique to:

Spoofing Type	Description	Typical Goal
Authority Spoofing	Display police/authority number	Gain trust
Bank Spoofing	Bank hotline as sender	Steal login credentials
Neighbour Spoofing	Display local Swiss number	Make you answer the call
Callback Spoofing	Brief ring then hang up	Provoke expensive callback

The New Rules Overview

From 1 January 2026

Measure	Description	Implemented By
CLI Validation	Verification of caller ID at network transition	Telecom providers
Blocking Fake CH Numbers	Block calls with manipulated +41 number	Network operators
Reporting Obligation	Report suspicious patterns to OFCOM	Providers

From 1 July 2026

Measure	Description
Extended Authentication	STIR/SHAKEN-like protocols for VoIP
International Cooperation	Collaboration with EU regulatory authorities
Customer Information	Providers must inform about spoofing risks

How to Protect Yourself from Phone Fraud

Recognise Warning Signs Immediately

Warning Sign	Typical Statement	Correct Response
Time Pressure	"You must act immediately!"	Hang up, call back yourself
Money Transfer	"Transfer to this account"	Never transfer by phone
Password Request	"Tell me your PIN"	Banks never ask by phone
Remote Access	"Install this software"	Never grant remote access
Authority Threat	"The police will come"	Police don't call like this

Technical Protection Measures

Measure	Description	Availability
Call Filter App	Automatic spam detection	iOS & Android
Provider Filter	Spam protection from mobile provider	Most providers
Block Unknown	Only allow known numbers	Smartphone setting
Report Number	Report suspicious numbers to OFCOM	Online form

Mobile Plan with Spam Protection

Modern mobile plans offer integrated protection against spam calls. Compare the best offers now.

Compare mobile plans →

What to Do in Case of a Fraud Attempt

Immediate Actions

Hang up – Don't get drawn into a conversation
Note the number – If displayed
Don't call back – Could be an expensive number
Inform family – Especially elderly relatives

Reporting Points

Office	Responsibility	Contact
OFCOM	Telecommunications supervision	bakom.admin.ch
NCSC	Cybersecurity	ncsc.admin.ch
Cantonal Police	In case of damage or threat	Local police
Consumer Protection	Consumer advice	konsumentenschutz.ch

FAQ

What exactly is call spoofing?

Call spoofing is falsifying the caller ID so that a different number appears on the display than the actual one. Fraudsters use this to appear as a bank, authority, or known person.

Are the new rules effective?

The measures from 2026 cannot completely prevent spoofing, but significantly hinder it. In particular, calls with fake Swiss numbers (+41) will be better detected and blocked.

Can I protect myself?

Yes, through healthy suspicion, call filter apps, and the rule: Never reveal sensitive data over the phone. When in doubt, hang up and dial the official number yourself.

What if I fell for a scam?

Immediately contact your bank (stop transfer), inform the police, and document all details. The faster you act, the higher the chance of recovering money.

Where can I report suspicious calls?

To OFCOM (Federal Office of Communications) via the online form or to the NCSC (National Cyber Security Centre).

Conclusion

The new anti-spoofing rules 2026 are an important step against phone fraud. Nevertheless, your own behaviour remains the best protection:

Be suspicious of unexpected calls
Never reveal data over the phone
Call back yourself for alleged banks/authorities
Protect relatives – especially seniors

Legal Notice: The information in this article is for informational purposes only and does not constitute legal advice. The exact regulations may change. Binding information is available from OFCOM or your telecommunications provider.