I Opened An Account At A Stock Holding Company (computer Share) Under My Deceased Mother’s Name.

In order to view any holdings she had, (she had none) under that account, and I’m now realizing that might’ve been very, very stupid and illegal. There was no attempt at fraud, I’ll be named an executor on her estate soon in fact and will be entitled to whatever might’ve been in there regardless (albeit split between me and two siblings) - just want to ensure I don’t really have anything to worry about here.

I used her account number at the company to set up the account online, not her SSN. But I did answer personal identification questions like “which address have you been associated with” or “what is your relationship to John Smith.” When I got in, I viewed her past transactions and remembered we sold her stock together a few months back to supplement her income, as money was tight due to her cancer treatment. I made no transactions, I purely opened the account to view the holdings which again amount to $0.

Does the action of setting up this account in a deceased persons name, regardless of intent, does that put me at risk of anything? Just hoping someone will tell me im wildly overthinking this and there’s nothing to worry about lol