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Security

Phishing warnings

Fraudsters send emails that look like invoices or warnings from hosting providers. Here you can see how we really communicate with you and how to spot fakes.

This translation is provided for convenience. The German version is legally binding. German version

Last updated: 5 October 2026HostOn · Alin Ghiorghiu, Kloten

What HostOn never does

  • Never asks for passwords

    We never ask you for your password by email, phone or chat.

  • Never asks for payment elsewhere

    You only pay invoices in the client area at my.hoston.ch.

  • No 24-hour ultimatums

    We do not set deadlines of hours and do not delete anything without several reminders.

  • Never uses other senders

    Our emails only come from addresses ending in @hoston.ch.

01

Current alerts

We are currently not aware of any phishing campaigns related to HostOn. That does not rule out fakes – always be careful with unexpected payment requests.

Have you received a suspicious email in the name of HostOn that is not listed here? Forward it to phishing@hoston.ch.

02

What is phishing?

In phishing (“password fishing”), fraudsters use fake emails, text messages, calls or websites to obtain passwords, credit card details or money. They often pose as well-known companies – such as a hosting provider, domain registrar, bank or postal service – and put their victims under time pressure.

Typical pretexts aimed at hosting customers are a domain that is supposedly about to expire, a blocked mailbox, a failed payment or a “security problem” that supposedly has to be fixed immediately.

03

How to recognise genuine messages from HostOn

  • Sender

    Genuine HostOn messageAddresses ending in @hoston.ch, e.g. noreply@hoston.ch, support@hoston.ch, buchhaltung@hoston.ch

  • Links

    Genuine HostOn messageOnly to hoston.ch and its subdomains: my.hoston.ch, cpanel.hoston.ch, webmail.hoston.ch, mail.hoston.ch

  • Invoices

    Genuine HostOn messageAlways also visible in the client area under “Invoices” – with the same number and the same amount

  • Greeting

    Genuine HostOn messageWith your name or company name from your customer account

  • Deadlines

    Genuine HostOn messageInvoices about 14 days before the due date, followed by reminders over several days

  • Language

    Genuine HostOn messageCorrectly written in the language of your account (English, German, French, Italian, Spanish or Romanian)

If in doubt, do not click the link in the email; open my.hoston.ch yourself in your browser instead. Anything not shown there did not come from us.

04

Typical warning signs

  • Unfamiliar sender domainThe display name reads “HostOn”, but the address behind it is e.g. @hoston-billing.com or @gmail.com.
  • Extreme time pressure“Within 24 hours”, “final warning”, “your data will be deleted”.
  • Suspicious linksHover over the link with your mouse: if it does not lead to hoston.ch, it is a fake. Watch out for typos such as h0ston.ch or hoston-ch.com.
  • Different amountsThe amount in the email or on the payment page does not match your invoice in the client area.
  • Unexpected attachmentsDo not open ZIP, HTML or Office files you were not expecting.
  • Impersonal and full of errors“Dear customer”, spelling mistakes, mixed languages, unusual sending time.

05

Examples of fake emails

The following examples are reconstructed and show typical patterns that hosting providers encounter again and again.

Example of a fake

From: HostOn Billing <service@hoston-billing-ch.com>

Subject: Final warning: your domain will be deleted today

Dear Customer,

The renewal of your domain has failed. If you do not pay CHF 14.19 within 24 hours, your domain and your website will be permanently deleted.

Pay now

Warning signs

  • Sender domain is not hoston.ch
  • 24-hour deadline and threat of deletion
  • Impersonal greeting, amount does not match any invoice
Example of a fake

From: Support <admin@mail-security-notice.net>

Subject: Your mailbox is full – messages are being held

Your email account has reached its storage limit. 12 incoming messages have been held back.

Sign in now to verify your mailbox and release the messages.

Verify mailbox

Warning signs

  • No connection to HostOn in the sender address
  • Link leads to a copied login page
  • We do not “verify” mailboxes via a link
Example of a fake

From: HostOn <noreply@hoston.ch.secure-payment.co>

Subject: Payment declined – services suspended

Your last payment was declined by your bank. Your services have been temporarily suspended.

Please update your credit card to avoid your account being blocked.

Update card

Warning signs

  • “hoston.ch” only appears at the beginning – the real domain is secure-payment.co
  • Request to enter credit card details outside my.hoston.ch
  • No unpaid invoice is visible in the client area

06

What to do with a suspicious email

  1. 1Do not respondDo not click links, open attachments, reply or pay anything.
  2. 2Check in the client areaOpen my.hoston.ch yourself and check whether there is an unpaid invoice or a notification there.
  3. 3Report itForward the email as an attachment to phishing@hoston.ch. This helps us warn other customers.
  4. 4Delete itYou can then delete the email.

07

Already clicked or entered data?

  1. 1Change passwords immediatelyChange the password for the affected login (client area, cPanel, mailbox) and everywhere else you use the same password.
  2. 2Inform your bank or card issuerIf you entered credit card or bank details, have the card blocked immediately.
  3. 3Contact usWrite to support@hoston.ch. We will check your account for suspicious logins, forwarding rules and outgoing mail, and help you secure it.
  4. 4Check your deviceIf you opened an attachment, scan your device with up-to-date antivirus software.
  5. 5File a police reportIf you have suffered financial loss, report it to the police.

08

How to protect your accounts

  • Use a separate, long password for each login – ideally with a password manager. Our Password generator can help.
  • Enable two-factor authentication wherever it is offered.
  • Keep WordPress, plugins and themes up to date – outdated software is the most common way fake pages end up on other people’s servers.
  • Set up SPF, DKIM and DMARC for your own domain so that fraudsters cannot send emails in your name.

09

Report phishing

  • Fakes in the name of HostOnForward to phishing@hoston.ch – during large campaigns we cannot reply to every report individually, but we thank you all the same.
  • Phishing page hosted with usReport it to abuse@hoston.ch with the exact URL. We block such pages promptly.
  • All other phishing attemptsReport to the Federal Office for Cybersecurity (NCSC) via www.antiphishing.ch
  • More on internet securityTips and guides: www.ibarry.ch and www.skppsc.ch

Frequently asked questions

Typical signs are a false sender address behind the display name, time pressure such as “final warning”, links that do not lead to hoston.ch, and unexpected attachments. If in doubt, open my.hoston.ch yourself in the browser instead of clicking the link.

Our emails come exclusively from addresses ending in @hoston.ch. You only pay invoices in the client area at my.hoston.ch, and we never ask for your password.

Do not click any links, do not open any attachments and do not pay anything. Forward the email as an attachment to phishing@hoston.ch and then delete it.

Immediately change the password for the affected account and everywhere else you use it. If you entered card or bank details, have the card blocked and inform our support.

Fakes in HostOn's name to phishing@hoston.ch, and phishing pages hosted by us to abuse@hoston.ch. Report all other phishing attempts to the Federal Office for Cybersecurity (NCSC) via antiphishing.ch.

No. We do not set deadlines of a few hours and do not delete anything without several reminders. An email with such threats is a strong sign of phishing.

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