Take this as a sketchy version, as my mother was flustered and was unable to give me accurate details.
It started when she tried to access the AIB app, she received a message saying that her account had been compromised, and that she should transfer her money to her Revolut account. The message disappeared and she can't find it to forward to me.
She rang me to tell me this, as I was telling her not to, she got cut off, as she had rang me on whatsapp and she received a phone call from 35312695022.
That phone call was a person saying that they were from AIB and her account was compromised in Scotland, there was some suspicious activity, a pending transaction from her AIB account of €1500 to her revolut.
He said he would ring back in ten minutes.
I told her it is a scam. €1500 from her account to her Revolut isn't that unusual to begin with. But I think on this occasion she didn't have the amount to cover it in her AIB account.
I then started to wonder if the original message was telling her about the attempt. I am still unsure.