I described what happened in an objective way. Since you do not want to take action and follow up on what happened, only threaten that I make serious accusations against you shows more about you and how you look at your users. Is that the way you run your buisness?
Let your user judge if your product is safe or not to use.
1. Discovered weird activity on my account, a post about cryptocurrency was published and hundreds of new followers are starting to appear in the feed. Checked the login statistics for my Instagram account and I was the only one who has logged in and not any login at the time the activity started.
2. I changed the password on my Instagram account (50 random characters) but still hundreds of new followers appeared.
3. Removed the connection for the plugin and then it completely stopped appearing new followers and no weird activity.