Data breach · April 2026

Was I in the CTT breach?

Data listed as coming from CTT, Portugal's national postal service, dates from April 2026 and holds 468,124 accounts. It included phone numbers, email addresses and names. If you had an account there by April 2026, check your address below to see whether it is one of them.

Breach record last updated . Steps read from the government pages at the foot of this page.

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01

What happened?

In April 2026 data said to come from the postal service was posted on a public hacking forum. It held email addresses, names, telephone numbers and the tracking numbers of parcels. Those numbers can be used to look up where a parcel has been.

The record notes that the company disputed this, or that where the data came from was not confirmed. It is listed here because the data is in monitored breach databases.

Organisation
CTT, Portugal's national postal service (ctt.pt)
When it happened
April 2026
Added to monitored breach databases
19 May 2026
Accounts in the data
468,124
What was exposed
phone numbers, email addresses and names
02

What was exposed, and what does it mean for me?

  • Your phone numberphone numbers

    Expect texts and calls that use your real details to sound genuine. A phone number is also what a fraudster needs to try to move your service to their own SIM card.

  • Your email addressemail addresses

    Expect messages that look like they come from this service or another one you use, written to get you to click a link or sign in on a fake page.

  • Other detailsnames

    On their own these carry less risk, but they make a scam message sound more personal.

03

What should I do now?

In this order, for what this breach exposed.

1. Protect your phone number

  • Ask your mobile carrier to put a PIN or passcode on your account, and ask whether it offers a lock on SIM changes and number transfers.
  • Treat texts about deliveries, accounts or payments with care. Do not tap the link: contact the company on a number you already have.

2. Expect phishing

  • Be wary of messages that urge you to act fast, ask for personal details, or link to an address that is slightly off.
  • If a message might be genuine, do not use its links or phone numbers. Go to the site by typing its address yourself.
04

Is my address in it?

Enter your email address. We check that one address against monitored breach databases and show which breaches list it and what each exposed.

No account needed. We keep the address you check, when, and how many breach records it was found in, to prevent abuse, until you ask us to delete it. Privacy

Sources

Where does this come from?

Other breaches from 2026

All breaches Breaches from 2026 Breaches that exposed phone numbers