<prompt> Human: I have never used Venmo but I recently downloaded the app because my roommate has it and suggested it as a way to pay each other back for things. It is not linked to my bank.Today I received a note saying someone had sent me 20. I dont recognize the name and we have no mutual friends. I dont have any friends on Venmo actually, but I peeked at their friends list she had around 60ish people on her friends list and didnt recognize anyone.Is this a phishing thing or just an honest mistake in who they sent money to? Because its not linked to my bank Im not really worried, but now Im curious about potential risks on Venmo.  <response>: If they contact you asking you to send the money back, dont do it. You can tell them to go through Venmo to get it canceled - Venmo would then contact you to authorize that cancellation and wouldnt need you to send the money back directly. 