Breach date: 2018-09-18. Added to this index: 2018-09-25. Accounts affected: about 2.5M. Domain: not listed.
What happened
In September 2018, security researcher Bob Diachenko discovered a massive collection of personal details exposed in an unprotected Mongo DB instance. The data appears to have been used in marketing campaigns (possibly for spam purposes) but had little identifying data about it other than a description of "Yahoo_090618_ SaverSpy". The data set provided to HIBP had almost 2.5M unique email addresses (all of which were from Yahoo!) alongside names, genders and physical addresses.
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.
Physical addresses: Your residential, postal, billing or delivery address, stored by retailers, utilities, banks, government services and almost any company that sends you something.
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 SaverSpy breach?
The SaverSpy breach exposed Email addresses, Genders, Names, Physical addresses. About 2.5M accounts were affected.
Was I affected by the SaverSpy 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 SaverSpy 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.