Tamodo Data Breach (2020): What Was Exposed & What To Do

In February 2020, the affiliate marketing network Tamodo experienced a data breach that exposed records belonging to approximately 495,000 accounts. The incident came to light when the data appeared on a popular hacking forum, and the company did not respond to repeated attempts to notify it through its published channels. The event illustrates the ongoing exposure of personal information held by online marketing platforms, where large volumes of user data are stored for operational purposes.

Inside the incident

The breach was reported on 28 February 2020. Public records indicate that nearly 500,000 accounts were involved, with the data subsequently posted on a hacking forum. Named data elements included names, email addresses, dates of birth, genders, geographic locations, IP addresses and passwords stored as bcrypt hashes. No information has been released about the date or method of the initial intrusion, the precise volume of records accessed, or any internal response by the organisation.

How a breach like this happens

Incidents affecting online service providers often begin with unauthorised access to customer databases through compromised credentials, unpatched software or misconfigured access controls. Once inside, an actor can copy stored records and later publish them on forums or other public channels. In many cases the victim organisation receives no prior notification and learns of the event only after the data appears externally.

Tamodo and its sector

Tamodo operated as an affiliate marketing network, connecting advertisers with publishers and maintaining accounts for participants in those programmes. Such platforms routinely collect registration details and technical identifiers to manage campaigns, track performance and handle payments. A breach at a firm of this type is consequential because the records can be repurposed for further account takeovers or combined with data from other sources.

What data was at risk

The exposed fields were limited to the categories listed in public reports of the incident. Exact contents of every record remain unconfirmed beyond those categories.

• Names
• Email addresses
• Dates of birth
• Genders
• Geographic locations
• IP addresses
• Passwords stored as bcrypt hashes

What's at stake

Individuals whose information appeared may face an increased likelihood of targeted phishing or attempts to access other accounts that reuse the same credentials. The presence of dates of birth and locations can aid identity-verification processes used by other services. For the organisation, the incident highlights gaps in incident-response procedures and the difficulty of containing data once it has been copied from internal systems.

If your data was in this breach

Review any accounts that share the exposed email address or password and change those credentials where reuse is detected. Enable multi-factor authentication on services that offer it. A free exposure scan of an email address against known breach data can indicate whether the address has appeared in this or other documented incidents.

AICompiled with AI assistance from public sources and published under our editorial standards.