The unencrypted hints also disclosed much about the passwords adding further to the risk that hundreds of millions of Adobe customers already faced.
The breached data was found being regularly traded online and included usernames, email and IP addresses and MD5 passwords.
Compromised data: Avatars, Email addresses, Geographic locations, IP addresses, Names, Passwords, Usernames, Website activity In July 2015, the infidelity website Ashley Madison suffered a serious data breach.
The breach resulted in nearly 6k user accounts and over 220k private messages between forum members being exposed.
Compromised data: Email addresses, Instant messenger identities, IP addresses, Names, Passwords, Private messages, Usernames, Website activity In December 2015, the service for creating and running free Minecraft servers known as Aternos suffered a data breach that impacted 1.4 million subscribers.
The data included usernames, email and IP addresses and hashed passwords.
Compromised data: Email addresses, IP addresses, Passwords, Usernames, Website activity In May 2014, the Avast anti-virus forum was hacked and 423k member records were exposed.
Likely obtained several years earlier, the data contained 112 million unique email addresses with personal data including names, birthdates and passwords stored as MD5 hashes.
Whilst there are many indicators suggesting Badoo did indeed suffer a data breach, the legitimacy of the data could not be emphatically proven so this breach has been categorised as "unverified".
The compromised data included email addresses, user birth dates and passwords stored as a salted MD5 hash.