How would PayPal know what you are saying on the internet?
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The same way I had a cell phone conversation with my Sister regarding picking up some quilts and comforters she no longer needed. The next day my phone was hit with dozens of ads for quilts and blankets.
Every transmission vocal or data is monitored, collected, and sold to the highest bidder.
What you say on your phone is listened to. What you post online is recorded for all of time.
Your smart phone and computer probably also eavesdrop on audible conversations that are NOT on electronic devices.