How could information be stolen from a Google spreadsheet, in which access is denied via a link and only I have access?

Question

Information Security

Hello.

I have a google spreadsheet with various passwords.
Someone used the data from this table. There were passwords to different accounts of workers with different passwords. So obviously they pulled it out.

Access to the Google spreadsheet is closed. Only I had access to it and no one else has ever had it.
Signing into Google acc is two-factor.

I haven’t connected to someone else’s open wi-fi for a hundred years already, they hacked recently.

And how can you protect yourself from this in the future?

Answer 1

The session was stolen from the browser.

Answer 2

information from google spreadsheets

I only have access

oxymoron-s :) the whole google has access :) maybe leaked because it seemed valuable

And how can you protect yourself from this in the future?

Do not store in the clouds, and even more so in Google, nothing of value