My bank uses "smsTAN", so when I make a transfer, the TAN gets texted to me. I would like to prevent texts from my bank from appearing in the lock screen as this lowers the safety of this method (someone would just have to nab my phone and find out my five-letter online PIN, don't ask me why my bank still enforces five-letter PINs).
I'd like to keep my other texts appearing in the lock screen.