Declining scams thanks to anti-spoofing measures (cross-border guide)

Context

In short - The number of fraudulent calls on behalf of the authorities has sharply decreased. - The reason is the extended obligation to mark calls from abroad with spoofed Swiss numbers. ## Key facts - What : Declining scams thanks to anti-spoofing measures. - When: From 1 July 2026. - Where: Switzerland. - Who: Federal Office of Cybersecurity. - Amount: Not yet specified. The number of fraudulent calls on behalf of the authorities has significantly decreased. The reason is the extended obligation to mark calls from abroad with spoofed Swiss numbers. From January to June 2026, more than 400 reports per month of attempted phone scams on behalf of the authorities were regularly recorded, as reported by the Federal Office of Cybersecurity. In July there were less than one hundred. On 1 July, the obligation to also mark calls on mobile numbers from abroad with a spoofed Swiss number came into force. This obligation has been extended to all calls from abroad, including mobile numbers. In particular, calls from cities such as Zurich and Bern have been the subject of particular attention. According to experts, phone scams were often carried out by individuals posing as representatives of banks or financial institutions, asking the call recipients for money. However, thanks to the obligation to mark In the first scenario, the person does not provide any personal information and reports the scam to 117. In the second scenario, the person provides some personal and financial information and the scam is not reported to 117. This is an example of how the obligation to dial calls from abroad can help prevent phone scams.

Operational details

Fraudulent calls on behalf of authorities have been a problem for a long time in Switzerland. The Federal Office of Cybersecurity has worked to reduce the number of these calls. The requirement to mark calls from abroad with spoofed Swiss numbers was an important step in achieving this goal. From January to June 2026, over 400 reports per month of attempted phone scams on behalf of the authorities were regularly recorded. In July there were less than one hundred. This means that the obligation to dial calls has had a positive effect.

In the Canton of Ticino, for example, over 150 telephone scams were reported on behalf of the authorities in January 2026. While only 20 phone scams were reported in July. This represents a reduction of 87% compared to the same period last year.

According to experts, the requirement to mark calls has been a key step in reducing the number of phone scams. “Calls coming from spoofed numbers are much easier to recognize as scams,” explains a representative of the Federal Office of Cybersecurity. “Swiss citizens are more aware of not answering these calls and not providing personal information.”

In addition, the requirement to dial calls has also helped reduce the number of online scams. According to data from the Federal Office of

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Key points

If you are a border worker, it is important to be aware of the security measures that have been implemented to reduce the number of fraudulent calls on behalf of the authorities. The requirement to mark calls from abroad with spoofed Swiss numbers is an important step towards achieving this goal. If you have problems with fraudulent calls, you can contact the Federal Office of Cybersecurity for more information.

According to data from the Federal Office of Cybersecurity, the number of fraudulent calls decreased by 30% in 2022 compared to 2021. This is an important achievement, especially considering that Switzerland is one of the most vulnerable countries to phone scams. 📊

However, it is important to continue to be cautious and follow safety measures to protect yourself and your family. Some of the safety measures you can take include:

• Do not answer unknown calls or calls from unrecognized numbers.
• Verify the identity of the calling operator before answering.
• Do not provide personal or financial information to anyone.

You can also use our calculator to calculate your taxes and find useful tax information in Switzerland. 📊

For example, if you are a resident of the canton of Geneva, you can use the calculator to calculate your income taxes and property taxes. According to 2022 data, taxes

Source: tio.ch