CTT data breach
From Breaches, in the HARD wiki · Updated
This article is about the April 2026 breach of CTT. For every breach, see Breaches.
The CTT data breach exposed 468,124 accounts from ctt.pt in April 2026. The data taken includes names, email addresses and phone numbers.[1]
Have I Been Pwned verified it and added it to its search on 19 May 2026, 1 month later. It is the 484th largest of the 618 breaches in HARD’s list.
What was exposed
CTT’s breach included 3 kinds of data. What each lets criminals do:
| Data | What it’s used for |
|---|---|
| Names | Makes scam messages personal enough to believe. |
| Email addresses | Expect scam emails that name the company to look genuine. |
| Phone numbers | Expect scam texts and calls, and a higher risk of someone moving your number to their SIM. |
What to do
- Check whether you’re in it.Search your email address on Have I Been Pwned. It tells you which breaches it appears in, CTT among them, without showing the data.
- Distrust messages that mention CTT.Scammers use breach data to sound genuine. Don’t click links in emails or texts about the breach; go to the site yourself.
- Put a PIN on your phone account.Ask your mobile provider for a port-out PIN, so no one can move your number to their SIM.
Timeline
- : the breach, as best it can be dated.
- : Have I Been Pwned verifies the data and adds it to its search, 1 month later.
Similar breaches
Breaches that leaked the same kinds of data, closest in time:
- Addi, March 2026, 35 million accounts
- McGraw Hill, April 2026, 14 million accounts
- CarGurus, February 2026, 12 million accounts
- Pitney Bowes, April 2026, 8.2 million accounts
- Odido, February 2026, 6.1 million accounts
- ADT, April 2026, 5.5 million accounts
See Breaches for all 618, and Updates for keeping your devices patched.
References
External links
- Have I Been Pwned, to check your email address
- ctt.pt, CTT’s website