Weak app security-***** case

My mother’s Nedbank app got hacked and maxed out the credit card plus lost het whole salary. Why is it so easy for people to hack Nedbank bank app how is this okay? First it was running up and down in between work to get everything sorted to open a ***** case at the police and they said the money would be paid back in 10 weeks (maximum) this was back in August already. Every time we call to hear what’s happening they just have a better answer and in the meantime the credit card instalment went up (because the hackers maxed out the credit card) and now my mother has to pay the higher instalment for money she didn’t use?? How is that right or fair. She banked her whole life with Nedbank and this is the service she gets, it’s disgusting the last update said they are experiencing a high rate of ***** cases and they are apparently waiting on the investigator to review the cases. It’s not right, Nedbank, do better and be better it is your fault that your banking apps are so easy to hack, you say then yourself you are experiencing a high number of cases, fix it and settle the ***** cases this is a disgrace, you are losing customers very fast my mother already moved to another bank and I will personally make sure once the case is settled that she closes all her accounts and credit card and NEVER bank with you ever again.