NEW STEP BY STEP MAP FOR STOPPING SCAMMERS

an individual online video called me yesterday eight/six/24 from my son's gmail , I assumed it absolutely was him then I answered, no-one was there to reply, I hung up, then texted my son he claimed it wasn't him, will that be a means for scammers to enter into my mobile phone and have my facts???? what should I do?The FTC sends e mail to people th