My Solana wallet was drained 3 months ago

My Solana wallet was drained 3 months ago. I have a general idea of what happened, but one thing keeps bothering me — the assets haven't moved at all since they were transferred. Am I missing something, or is this just a lazy or forgetful thief?

This is the final destination of my funds and this is my wallet. I pretty much abondoned the wallet since the incident.

I've been checking the funds regularly, just in case they were moved to a CEX and I could somehow contact the exchange to freeze them, but the wallet has been dormant for 3 months now.

Can someone more experienced break down what happened so I can move on peacefully?