https://www.malwarebytes.com/blog/news/2022...to-new-guidance

Netflix can monitor multiple logins from different locations or devices despite randomized MAC and dynamic IP addresses through several methods:

• User behavior analysis: Netflix can analyze user behavior to detect any unusual patterns of activity, such as multiple logins from different locations or devices at the same time. By analyzing user behavior, Netflix can identify when an account is being shared among multiple users.
  
• Cross-referencing login data: Netflix can cross-reference login data with other information, such as geolocation data, to determine whether multiple logins are coming from the same or different locations.
  
• Device fingerprinting: Netflix can use device fingerprinting techniques to identify individual devices and track their usage over time. Device fingerprinting can identify unique characteristics of a device, such as the browser version, screen resolution, and operating system, which can be used to track users across different locations and devices.
  
• Session management: Netflix can use session management techniques to track user sessions over time. By tracking user sessions, Netflix can identify when multiple users are using the same account simultaneously.
  
• IP address analysis: While dynamic IP addresses can change frequently, Netflix can still track IP addresses associated with each login and compare them to the known locations of the account holder. Netflix can use geolocation data to determine the approximate location of an IP address and compare it to the known location of the account holder.

Overall, Netflix uses a combination of techniques to monitor multiple logins from different locations or devices, despite randomized MAC and dynamic IP addresses. By analyzing user behavior, cross-referencing login data, using device fingerprinting, session management, and IP address analysis, Netflix can detect when an account is being shared among multiple users and take appropriate action to prevent password sharing.

This post has been edited by eclectice: May 24 2023, 12:16 PM