Abusers are using e-transfers to contact their victims. Who is responsible for stopping them?

Friends say it could've been prevented:Début du widget Widget. Fin du widget Widget. Fin du widget Widget. Calls for banks to stop abusive messages sent by e-transferThere are calls for Canadian banks to crack down on abusive messages sent via e-transfers. For Angie Sweeney, there wasn't enough time to report the abusive e-transfer messages before her ex shot and killed her last October.