I agree with the excel thing.
Not with thinking it can't happen with vibecoded python.
I think handling sensitive data should be done by professional.
A lawyer handles contracts, a doctor handles health issue and a programmer handles data manipulation through programs.
This doesn't remove risk of errors completely, but it reduces it significantly.
In my home, it's me who's impacted if I screw up a fix in my plumbing, but I won't try to do it at work or in my child's school.
I don't care if my doctor vibe codes an app to manipulate their holidays pictures, I care if they do it to manipulate my health or personal data.
Of course issues CAN happen with Python, but at least with Python we have tools to check for the issues.
Bunch of your personal data is most likely going through some Excel made by a now-retired office worker somewhere 15 years ago. Nobody understands how the sheet works, but it works so they keep using it :) A replacement system (a massive SaaS application) has been "coming soon" for 8 years and cost millions, but it still doesn't work as well as the Excel sheet.
Because Excel has no way of doing unit tests or any kind of significant validation. Big BIG things have gone to shit because of Excel.
Things that would have never happened if the same thing was a vibe-coded python script and a CSV.