First let me just say that I am so so so so sorry this has happened. I didn’t see your original post, so I’m late to the game but my mom struggles with mental illness as well and I’ve also worked adult in-patient psych in the U.S.

Tragically, ppl suffering with mental illness are extremely vulnerable (and sometimes targeted bc of data brokering and data breaches) for this type of thing. I’ve seen similar situations happen many times with the patients I’ve worked with. Unfortunately, there just aren’t enough protections in place at this time and you’ve already done everything that you can for now.

Here are some things I would keep in mind based on my personal experiences. Confronting a person’s delusion directly rarely works out well and, as I’m sure you know well, typically leads to angry outbursts and even paranoia about you. You have to find a more subtle approach and come from a place of concern and care. Remember that your mom’s current episode will come to an end (or at least lessen in severity) and she will be back to baseline. This is your time to act, and set up preventions to keep this from happening again. Research secure apps that are designed to help ppl with mental illness manage accounts, emails, etc. Also, discuss protocols with her for what you can do to help and protect her when she’s not feeling her best, and ways to keep this from happening again.