I was logged into Plesk under the 'admin' user this morning, went to refresh the page and got taken back to the login screen as my session had expired. So I simply re-entered my details and was told 'Access Denied'. I made several more attempts with no success. I then tried another account, which worked fine. I tried logging into 'admin' with a made-up password and it told me: 'Log in incorrect' - but when I input the correct password I get the 'Access Denied' alert again! Does anybody know why Plesk has suddenly taken upon itself to deny the 'admin' user access? Edit: now it would seem all my other accounts have been disabled!