Cybercrime and impersonation fraud in Switzerland

Switzerland has seen a significant reduction in fraudulent calls impersonating authorities, with reports dropping by more than 75 percent following the expansion of caller ID labeling requirements to mobile numbers on July 1, 2026.

Despite this decline in impersonation calls, cybercrime remains a persistent threat. Criminals are increasingly utilizing artificial intelligence to generate highly personalized content. Recent fraudulent activities include phishing attacks targeting job seekers and Microsoft-365 business email accounts.

Authorities in several cantons, including Bern, Zug, and Schwyz, have issued specific warnings regarding tax-related scams. These fraudulent schemes use email, SMS, QR codes, and physical mail to impersonate tax administrations or software like eTax.ch. Scammers often use threats of debt collection, late fees, or interest to pressure victims into revealing sensitive banking and personal information. Officials have clarified that legitimate tax assessments and reminders are typically sent via physical mail.