Breach date: 2017-11-28. Added to this index: 2018-01-15. Accounts affected: about 512K. Domain: opencsgo.com.
What happened
In December 2017, the website for purchasing Counter-Strike skins known as Open CS:GO (Counter-Strike: Global Offensive) suffered a data breach (address since redirects to dropgun.com). The 10GB file contained an extensive amount of personal information including email and IP addresses, phone numbers, physical addresses and purchase histories. Numerous attempts were made to contact Open CS:GO about the incident, however no responses were received.
Breach data sourced from Have I Been Pwned, used under CC BY 4.0. Additional breach metadata provided by XposedOrNot. DataExposed is an independent service and is not affiliated with or endorsed by either.
What was exposed
Avatars: The small profile image attached to your account, which may be a real photo, a cartoon, a generated icon or a picture taken from another service.
Email addresses: The email address you used to register or log in. It is the most common field in breaches because it doubles as your username on most sites.
IP addresses: The network addresses your devices used when you signed up, logged in or posted, recorded by almost every website in its access logs.
Phone numbers: Your mobile or landline number, collected at signup for contact, delivery updates, marketing and two-factor codes.
Physical addresses: Your residential, postal, billing or delivery address, stored by retailers, utilities, banks, government services and almost any company that sends you something.
Purchases: Records of items or services you bought, often with order numbers, prices, dates, delivery addresses and the store or seller involved.
Social media profiles: Usernames, profile URLs or handles for social networks such as Facebook, Instagram, X, TikTok, LinkedIn or Discord, stored alongside another account.
Usernames: The handle or login name you chose for an account, which may be public on forums, games and social platforms or used privately to sign in.
What to do now
Check whether your own address is in this dataset with the free email breach check.
Review the accounts connected to this service and turn on two-factor authentication.
Turn on two-factor authentication on your email account first, because it is the reset path for everything else.
Treat calls and messages that quote real details about you as hostile until you verify them another way.
Frequently asked questions
What data was leaked in the Open CS:GO breach?
The Open CS:GO breach exposed Avatars, Email addresses, IP addresses, Phone numbers, Physical addresses, Purchases, Social media profiles, Usernames. About 512K accounts were affected.
Was I affected by the Open CS:GO breach?
Run the free email breach check with the address you used on that service. It will tell you whether your address appears in this dataset.
What should I do about the Open CS:GO breach?
Treat any message that quotes details from this breach as suspicious, turn on two-factor authentication, and consider removing your details from people-search sites if your address or phone was included.