Hello, I have a critical security issue.
This morning when logging into my mac next cloud desktop client, I noticed I was logged into an account that wasn’t mine. I was able to see another nextcloud users personal data uploaded to their nextcloud. I had access to all contacts, calendars, files, and account activity etc. I do not know how I was logged into this persons account, all I know is that my nextcloud client was synced to their account. I contacted the email of the user I was logged into to notify them but I got no response.
As of now, I have deleted my account. I was using the cloud provider tabdigital and contacted their support as well. I have gotten no response.