Why does the list of submission numbers, as seen in the File Browser section of the Journal Manager contains holes (only one journal on one OJS installation) ? Eg. #600, #601, #603 appear, but #602 does not exist?
Relatedly, I found some numbers in the file browser which do not correspond to any submission.
The corresponding downloded file has suffix .phtml and the file contains “Captain Crunch Security TeaM”, which could correspond to some hackers. Any idea to avoid such kind of fake submission ?