STOPPING SCAMMERS FUNDAMENTALS EXPLAINED

a person video clip called me yesterday eight/6/24 from my son's gmail , I believed it had been him then I answered, not one person was there to answer, I hung up, then texted my son he said it wasn't him, will that be a means for scammers to enter into my cellular phone and get my data???? what ought to I do?I get spam each day, but delete it as f