THE SINGLE BEST STRATEGY TO USE FOR SPAM TEXT

a person movie called me yesterday eight/six/24 from my son's gmail , I believed it was him then I answered, no person was there to answer, I hung up, then texted my son he explained it was not him, will that be a way for scammers to get into my cellphone and have my facts???? what need to I do?I no longer solution calls from numbers not in my Get