In more mild cases, like password sharing among family members, the streaming platform could simply send an email or notification suggesting that they upgrade to a premium or "family" account.
Synamedia's Credential Sharing Insights service analyzes streaming data from all its users.
Synamedia CTO Jean-Marc Racine said, 'A typical pattern would be you have a subscriber that is simultaneously watching content on the East Coast and West Coast of the US.
The company pointed to research that about one in four millennials give other people their credentials for video screaming services.
It can also distinguish users who are sharing passwords with friends or kids who no longer live at home.More news: Google Pixel lockscreen Assistant feature coming to all Android devices
The new technology was revealed by Synamedia at the Consumer Electronics Show (CES) tech conference this week.
Synamedia's machine learning program, called Credentials Sharing Insight, looks at where an account is being used, when it is being used, what content is being streamed, and what devices are being used to stream that content.
Before you know it, your second cousin once removed who lives in Ballina is using your account to binge watch Orange is the New Black.
According to Synamedia, its system is now undergoing pilot trials at a number of undisclosed streaming firms. It is already being used in trials with a number of pay-TV operations, Synamedia said.