Trello data breach
From Breaches, in the HARD wiki · Updated
This article is about the January 2024 breach of Trello. For every breach, see Breaches.
The Trello data breach exposed 15,111,945 accounts from trello.com in January 2024. The data taken includes usernames, names and email addresses.[1]
Have I Been Pwned verified it and added it to its search on 22 Jan 2024, within a month. It is the 108th largest of the 618 breaches in HARD’s list.
What was exposed
Trello’s breach included 3 kinds of data. What each lets criminals do:
| Data | What it’s used for |
|---|---|
| Usernames | Half of a login. With a reused password, it opens other accounts. |
| Names | Makes scam messages personal enough to believe. |
| Email addresses | Expect scam emails that name the company to look genuine. |
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, Trello among them, without showing the data.
- Turn on two-step sign-in.On Trello (trello.com) and your email, so leaked sign-in details aren’t enough on their own.
- Distrust messages that mention Trello.Scammers use breach data to sound genuine. Don’t click links in emails or texts about the breach; go to the site yourself.
Timeline
- : the breach, as best it can be dated.
- : Have I Been Pwned verifies the data and adds it to its search, within a month.
Similar breaches
Breaches that leaked the same kinds of data, closest in time:
- The Post Millennial, May 2024, 57 million accounts
- Zacks (2024), June 2024, 12 million accounts
- Spoutible, January 2024, 207,114 accounts
- SoundCloud, December 2025, 30 million accounts
- Adpost, February 2025, 3.3 million accounts
- Duolingo, January 2023, 2.7 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
- trello.com, Trello’s website