Google scans your Google Docs?
Apparently so. Users of Google Docs found themselves blocked from accessing their own documents with Google telling them they were blocked for “violating terms of service” with Google.
People had critical documents needed for meetings, university assignments and more – blocked.
By later in the day, Google has fixed the problem but their explanation indicates Google Docs does scan all of our documents. It is unclear what Google does with the scanning of our document content, other than scanning it for unclear violations of terms of service.
This issue should now be resolved and you should be able to access your files.
For more details, this morning, we made a code push that incorrectly flagged a small percentage of Google Docs as abusive, which caused those documents to be automatically blocked. A fix is in place and all users should have full access to their docs. Protecting users from viruses, malware, and other abusive content is central to user safety. We apologize for the disruption and will put processes in place to prevent this from happening again.
Google Docs Community
Source is Google support https://support.google.com/docs/forum/AAAABuH1jm0PImCWRuosbY/?hl=en