technology

So I don't know shit about Crypto, but someone I know may have had their stuff hacked recently (sounds like there was a breach a week ago). They haven't been able to get back into their account and the whole thing sounds fishy from an outsider perspective so I wanna get someone else's thoughts on how to approach this because I think they are being seriously hacked and that someone might possibly be trying to steal their identity.

This person reached out to customer support and provided the appropriate documentation after locking their account, but this person said that they submitted the docs over and over, and for whatever reason the person they have been in contact with has not yet verified that the documentation is sufficient. This supposed customer service rep sounds like they, for whatever reason, have access to this person's entire browsing history and told them the last time that they logged on to their email account, social media, etc. This person also told me that at some point since this all began, that the cursor on the desktop started moving independently, and that some weird shit started updating or downloading. They are totally distraught so that's pretty much the only information I have...And I don't know what to do with it but I want to help. So if anyone has any info/advice on the coinbase issue, or someone possibly having hacked the desktop I would super appreciate it