# Cybercrime and impersonation fraud in Switzerland > Live situation record from CLSTR: https://clstr.news/situations/cybercrime-and-impersonation-fraud-in-switzerland > Updated: 2026-09-14T13:40:19.000Z. Sources: 3. Developments: 2. 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. ## Timeline ### 2026-09-14: Swiss cantons warn of tax-related phishing scams Swiss authorities in Zug and Schwyz are warning residents about professional phishing emails impersonating tax administrations to steal banking and personal data. 2 sources. https://clstr.news/cluster/swiss-cantons-warn-of-tax-related-phishing-scams ### 2026-08-26: Switzerland sees drop in authority impersonation calls Switzerland sees a 75 percent drop in authority impersonation calls following new caller ID labeling, though tax fraud scams and AI-driven phishing remain high risks. 2 sources. https://clstr.news/cluster/switzerland-sees-drop-in-authority-impersonation-calls --- Cite as: Cybercrime and impersonation fraud in Switzerland. CLSTR, https://clstr.news/situations/cybercrime-and-impersonation-fraud-in-switzerland