Scam

13/01/2026

Important security notice:
Phishing scam involving alleged TWINT or PayPal payments

There has been an increase in phishing scams involving purchase and sale agreements for advertisements.

Fraudsters specifically pose as interested buyers. They offer to pay for an item via TWINT or PayPal – often including shipping costs.

They then ask the seller to click on a link or QR code to confirm the alleged payment or to log in to TWINT or PayPal.

However, these links and QR codes lead to fake websites. Any login details or payment authorizations entered there are intercepted by the fraudsters in order to obtain personal data or money.

Important:

• Do not confirm payments via links or QR codes sent to you.

• Never log in to TWINT or PayPal via external links.

• Only use the official app or the official website.

• Do not disclose any passwords or personal data.

• Delete suspicious messages immediately.

Further information and current warnings:

• TWINT: https://www.twint.ch/en/private-customers/support/security/current-security-issues/?lang=en

• PayPal: https://www.paypal.com/ch/cshelp/article/wie-erkenne-ich-eine-gef%C3%A4lschte-betr%C3%BCgerische-oder-phishing-e-mail-oder-website-die-vorgibt-von-paypal-zu-stammen---help164?locale.x=de_CH

Stay alert and report any suspicious contacts to the Unimarkt team.

Frequently asked questions about phishing

1. What is phishing?

Phishing refers to attempts to obtain personal data such as passwords, credit card details, or login information via fake emails or websites. These messages often appear to be genuine and seem to originate from Unimarkt.

2. How can I recognize a phishing email?

Typical characteristics:

• The sender's address looks similar, but is not exactly the same (e.g., support@unimarktplattform.com instead of markt@unibas.ch or no-reply@unibas.ch).

• You are asked to click on a link and enter your login details there.

• The message uses urgency or threats (“Your account will be blocked”).

• Grammar or spelling mistakes are noticeable.

3. What should I do if I receive a suspicious email?

• Do not click on any links.

• Do not open any attachments.

• Only log in directly via our website https://markt.unibas.ch/auth/login.

• Delete the suspicious message.

4. I have already clicked on a link – what now?

• Change your password immediately via our website. https://markt.unibas.ch/auth/login

• Use a secure password that you have never used before.

• If you use the same password for other services, change it there as well.

• If you notice any further irregularities, please contact our support team: markt@unibas.ch.

5. How does Unimarkt protect itself against phishing?

• We do not send emails asking you to enter your password via a link.

• Official communications always come from the sender address markt@unibas.ch or no-reply@unibas.ch.

• We constantly monitor new phishing attempts and will inform you immediately if necessary.

6. How can I protect myself further?

• Use different passwords for different services.

• Always be skeptical of unexpected messages.

General information about the risks of fraud on the Internet

Detailed information about different types of internet fraud can be found on the website of Crime Prevention Switzerland: skppsc.ch

Fraudulent real estate advertisements

Online classified platforms, such as Unimarkt, pose an increased risk of fraudulent real estate ads.

How to Protect Yourself:
Always visit the property in person before signing a contract.
Never transfer money until you have a legally binding contract.

Recommendation from the Unimarkt Editorial Team:
Read the article "Fake Listings: Tips to Avoid Fraud on Real Estate Platforms" on comparis.ch.