I have begun to receive spam text messages on my iPhone. The frequency increased from about twice a year to twice a week. Two things changed recently. I gave my phone number to some fifteen dozen college students, some of whom are naive about keeping personal info secure. I switched carriers, from AT&T to Verizon. Unwilling to just delete this garbage as it arrives, I changed two options provided by my carrier: Block all text messages sent from the web. Block all text messages sent from email. My intention is to block spam while remaining available to friends, family, and students who want to text me. Is there a downside to choosing both of these options?