Data breaches → 집꾸미기
Was your data in the 집꾸미기 breach?
2020 · ggumim.co.kr · ~1,298,651 accounts exposedHigh severity · 7/10
집꾸미기 (ggumim.co.kr) suffered a data breach in 2020 that exposed around 1,298,651 accounts. If you had an account, some of your personal data may be circulating in leaked databases. The fastest way to know is to check your own email — free, in about 30 seconds, no password required.
What happened
In March 2020, the Korean interior decoration website ???? (Decorating the House) suffered a data breach which impacted almost 1.3 million members. Served via the URL ggumim.co.kr, the exposed data included email addresses, names, usernames and phone numbers, all of which was subsequently shared extensively throughout online hacking communities. The data was provided to HIBP by breachbase.pw.
Breach details sourced from Have I Been Pwned, the industry-standard breach database. Risk analysis by Nullivo.
What was exposed, and why it matters
Not all breaches carry the same risk — what matters is which fields leaked. Here is what the 집꾸미기 breach exposed and what each item actually enables:
Enables SIM-swap attacks (hijacking your number to intercept SMS codes), smishing, and voice scams that appear to come from your bank.
Links this leak to your other accounts — a reused username lets anyone build a profile of you across platforms.
Puts you on spam and phishing lists, and confirms to attackers that you hold an account with this service — which makes impersonation emails more believable.
Also listed in this breach: Email addresses, Names, Phone numbers, Usernames.
What to do if you were affected
These steps are ordered for this specific breach — the most urgent action given what leaked comes first.
- Phone numbers: Move two-factor authentication off SMS to an authenticator app or passkey, and add a port-out PIN with your mobile provider.
- Names and usernames: Search your usual username to see what else it exposes, and use distinct handles for sensitive accounts.
- Email addresses: Treat any message referencing this service with suspicion, and never act on links in unexpected emails.
- Check whether your own email appears in this breach — run a free scan to confirm before you spend time on the steps above.
How urgent is this now?
This breach is over 6 years old. Old credentials still cause harm — leaked passwords from a decade ago are still tried against new accounts every day.
Remember: a breach can't be "un-leaked" — once a database is out, it exists in countless copies. The goal is to make the leaked data useless: change what can be changed, lock down what can't, and remove what has been republished.
Frequently asked questions
What data was exposed in the 집꾸미기 breach?
The 집꾸미기 breach exposed phone numbers, names and usernames, email addresses. Enables SIM-swap attacks (hijacking your number to intercept SMS codes), smishing, and voice scams that appear to come from your bank.
How many people were affected by the 집꾸미기 breach?
Around 1,298,651 accounts were exposed, making it a large breach.
What should I do if I had a 집꾸미기 account?
Move two-factor authentication off SMS to an authenticator app or passkey, and add a port-out PIN with your mobile provider. You can check whether your own email appears in this breach with a free Nullivo scan — no password required.
Breaches that exposed similar data
If the 집꾸미기 breach affected you, these breaches exposed comparable information — worth checking too, since leaked datasets are routinely combined.
- Was your data in the NetGalley breach? (2020, ~1,436,435 accounts)
- Was your data in the GamingMonk breach? (2020, ~654,510 accounts)
- Was your data in the TrueFire breach? (2020, ~599,667 accounts)
- Was your data in the LiveAuctioneers breach? (2020, ~3,385,862 accounts)
- Was your data in the ProctorU breach? (2020, ~444,453 accounts)
- Was your data in the CyberServe breach? (2021, ~1,107,034 accounts)