Zurcher Kantonalbank Fraud: How to Report It and Stop the Money
If money left your Zurcher Kantonalbank account without your permission, or you paid a scammer, contact Zurcher Kantonalbank straight away and ask it to block the payment and your card. The first minutes matter most.
Do this first
- Call Zurcher Kantonalbank’s official line below, or use help inside the official Zurcher Kantonalbank app. Never use a number from a text, a caller or a search result.
- Give them the transaction details (amount, time, and the account or number you paid) and ask them to block your card and stop or recall the payment.
- Change your online banking password and PIN if anyone may know them. Zurcher Kantonalbank will never ask for your PIN, password or a one-time code.
- Report it to the police too: see who handles cybercrime in Switzerland, and keep screenshots of every message and payment.
Official Zurcher Kantonalbank fraud contacts
Zurcher Kantonalbank (ZKB)
Bank- Block debit or account card:0844 843 823(24/7)
- Block debit or account card, from abroad:+41 44 293 93 93(24/7)
- Block credit or prepaid card (Switzerland and abroad):+41 58 958 83 83(24/7)
- eBanking support:0844 840 140(Mon–Fri 8am–10pm, Sat–Sun 9am–6pm)
- eBanking and TWINT support, from abroad:+41 44 293 95 95(Mon–Fri 8am–10pm, Sat–Sun 9am–6pm)
- ZKB TWINT support:0844 000 020(Mon–Fri 8am–10pm, Sat–Sun 9am–6pm)
Know this about Switzerland
- 0844 numbers are charged at business rates and may not work from abroad: use the +41 44 or +41 58 numbers instead.
- For UBS and TWINT, use the contact in your app or the number on the back of your card; we could not verify their pages.
If Zurcher Kantonalbank won’t help
Swiss Banking Ombudsman
Free, neutral information and mediation for clients of Swiss banks. It cannot issue binding rulings.
Official websiteReport it to the police too
Cybercrime agencies in Switzerland lists who to report to, and our step-by-step guide covers the rest: How to Report Cybercrime in Switzerland (and Get Your Money Back).
Common questions about Zurcher Kantonalbank fraud
- What is the Zurcher Kantonalbank fraud helpline number?
- Zurcher Kantonalbank lists these numbers on its own website: Block debit or account card: 0844 843 823 (24/7); Block debit or account card, from abroad: +41 44 293 93 93 (24/7); Block credit or prepaid card (Switzerland and abroad): +41 58 958 83 83 (24/7); eBanking support: 0844 840 140 (Mon–Fri 8am–10pm, Sat–Sun 9am–6pm); eBanking and TWINT support, from abroad: +41 44 293 95 95 (Mon–Fri 8am–10pm, Sat–Sun 9am–6pm); ZKB TWINT support: 0844 000 020 (Mon–Fri 8am–10pm, Sat–Sun 9am–6pm). Always dial the number printed on your card or shown in the official app if you are unsure.
- How do I report fraud to Zurcher Kantonalbank?
- Call Zurcher Kantonalbank's official line. Tell them the amount, the time and the account the money went to, and ask them to block your card or the payment.
- What if Zurcher Kantonalbank will not help or refund me?
- In Switzerland you can complain to Swiss Banking Ombudsman. Details of what each one handles are on this page.
Other providers in Switzerland
These contacts were read on Zurcher Kantonalbank’s own website on 3 October 2026. If a number has changed, use the one in the official app and tell us. Ministry of Cyber Affairs is not Zurcher Kantonalbank and cannot recover money. All Switzerland providers are in Bank Fraud Help: Switzerland.