What's with the security check?

[rado84]

Sounds like Malware to me. Probably should do a scan on your computer.

As I already mentioned, it's not a PC, it's a smartphone with Windows 8.1 and since it's not open source there are no viruses or malware for it.
I can't provide a screenshot because I'm 3 miles away from the nearest cell and uploading fails 90% of the time. But I can tell you it's that kinda check which requires choosing 3 or 4 images with street signs or buses or rivers. Once I do that and proceed, the forum says "can't upload file; too big for PHP" and I have to go back twice and hit "post reply" for the whole thing to work.