Breach date: 2016-06-01. Added to this index: 2016-06-27. Accounts affected: about 2.7M. Domain: uiggy.com.
What happened
In June 2016, the Facebook application known as Uiggy was hacked and 4.3M accounts were exposed, 2.7M of which had email addresses against them. The leaked accounts also exposed names, genders and the Facebook ID of the owners.
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
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.
Genders: The gender or sex recorded on your profile, usually picked from a list at signup, sometimes with a title such as Mr or Ms or a gender identity option beyond male and female.
Names: Your first name, surname and sometimes middle name or initials, as you gave them when you signed up. It appears in almost every breach because nearly every account asks for it.
Social connections: Lists of your friends, followers, contacts, groups or professional connections on a social, dating, gaming or networking platform.
Website activity: Records of your actions on a website or app, such as pages viewed, searches, clicks, downloads, logins, cart activity, IP addresses and timestamps.
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 Uiggy breach?
The Uiggy breach exposed Email addresses, Genders, Names, Social connections, Website activity. About 2.7M accounts were affected.
Was I affected by the Uiggy 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 Uiggy 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.