The test involves showing a new screen to users who may be using another user's account. The screen reads...
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If you don't live with the owner of this account, you need your own account to keep watching.
If your account was wrongly flagged, Netflix asks you to verify the account with a code sent via email or text.
According to a Netflix spokesperson, "This test is designed to help ensure that people using Netflix accounts are authorized to do so."
Tthe company's terms and conditions say, "The Netflix service and any content viewed through our service are for your personal and non-commercial use only and may not be shared with individuals beyond your household." Despite this, Netflix hadn't taken steps to block password sharing, choosing to set limit on simultaneous streaming instead.
It's unclear if Netflix will decide to expand its crackdown on password sharing in the future but you can download the iClarified app or follow iClarified on Twitter, Facebook, YouTube, and RSS for updates.