Your data has not necessarily been stolen from you directly.
It could have been stolen from the service or goods providers to whom you entrust your personal information, from your employers, even from your friends and family.
After more than seven months of research, Hold Security identified a Russian cyber gang which is currently in possession of the largest cache of stolen data.
The Cyber Vor gang amassed over 4.5 billion records, mostly consisting of stolen credentials.
1.2 billion of these credentials appear to be unique, belonging to over half a billion e-mail addresses.
To get such an impressive number of credentials, the Cyber Vors robbed over 420,000 web and FTP sites.
Initially, the gang acquired databases of stolen credentials from fellow hackers on the black market.
These databases were used to attack e-mail providers, social media, and other websites to distribute spam to victims and install malicious redirections on legitimate systems.