Mate1.com Data Breach (2016): What Was Exposed & What To Do
SourceBreach data provided in part by Have I Been Pwned, used under CC BY 4.0.
The Mate1.com Data Breach (2016) (reported February 29, 2016) exposed Astrological signs, Dates of birth, Drinking habits and Drug habits belonging to roughly 27.4M people. If you have an account with them, your information may now be circulating on the open web and with data brokers. Here’s exactly what happened, how to check if you were affected, and what to do next.
People who created accounts on the dating platform Mate1.com may still encounter privacy and account-security consequences from a breach reported in early 2016. The incident exposed records belonging to 27.4 million subscribers, including personal details that can be used to identify individuals or target them for further misuse.
The scale of the event and the nature of the data involved mean that anyone who registered with the service around that period has reason to review their current online accounts and security practices.
Inside the incident
The breach was reported on 29 February 2016. It involved the disclosure of information belonging to more than 27 million Mate1.com subscribers. Public reporting at the time stated that the exposed material included personal details about subscribers’ private lives as well as passwords stored in plain text. No information has been released about the method used to obtain the data or the precise timeline of the intrusion itself.
How a breach like this happens
Incidents affecting online service providers commonly begin with an attacker gaining unauthorised access to internal systems, often through compromised credentials, unpatched software, or misconfigured databases. Once inside, the attacker can copy large volumes of stored records. In sectors that retain user profiles over many years, such copies may include both current and older entries that were never deleted.
Who is Mate1.com?
Mate1.com operated as an online dating service, connecting individuals through profiles that described personal characteristics and preferences. Organisations in this sector routinely collect and store contact information, demographic details, and self-reported lifestyle data to facilitate matching. A breach at such a service is consequential because the records frequently contain information users consider sensitive and do not share in other contexts.
The information in question
The following categories of data were named in reports of the incident:
- Astrological signs
- Dates of birth
- Drinking habits
- Drug habits
- Education levels
- Email addresses
- Ethnicities
- Fitness levels
- Income levels
- Sexual fetishes
- Passwords stored in plain text
Exact confirmation of every field present in the data set remains limited to these reported categories.
What's at stake
Individuals whose records were exposed face the possibility that their email addresses and other identifiers could be used for phishing or account-takeover attempts. Plain-text passwords increase the chance that any reused credentials on other sites could be exploited. Personal details such as habits and preferences may also be used to craft more convincing social-engineering messages. For the organisation, the incident highlights the long-term liability that accompanies retention of detailed user profiles.
Were you affected?
Anyone who held an account on Mate1.com can check whether their email address appears in public breach data sets through free lookup services. Practical next steps include changing passwords on Mate1.com and any other sites where the same password was used, enabling multi-factor authentication, and monitoring email accounts for unexpected login attempts or messages.
AICompiled with AI assistance from public sources and published under our editorial standards.
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Read GalaxyWarden’s full analysis of the Mate1.com Data Breach (2016) →
Verified breach. Breach data provided in part by Have I Been Pwned, used under CC BY 4.0.
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