Amazon's Ring doorbell has launched a new AI-powered facial recognition feature called 'Familiar Faces,' enabling users to identify up to 50 frequent visitors and receive personalized alerts. The feature encrypts data and deletes unrecognized faces after 30 days. Despite these measures, privacy advocates and Senator Ed Markey have raised concerns due to Amazon's past data-sharing practices with law enforcement and a $5.8 million FTC fine for video access violations. The feature is prohibited in Illinois, Texas, and Portland, Oregon.