[MAC] Desktop App Vulnerable?!

[Pestmeester]

1. Spotify opened with the computer boot as usual
2. Used the app to listen to some stuff 
3. Paused the music to work with my own music 
4. Did a break in the work and went to Spotify window 

5. THIS MESS! (see attachment) 

What I expected to happen - This to not happen. 
What actually happened - Check attachment. 
My OS - OSX 10.10.3
Spotify Version - 1.0.4.90.g0b6df40b
Internet Provider - Net Virtua/Brazil 
User - 12154265808 

Please explain yourselves, I never had any problems like this and I use the app everyday, also I check my computer for threats now and then. I don't even know how to explain this, malware, adware, a demon or even a big bug from your app. 

Restarting the app solved the issue, but I think some explanation is necessary as well to let the community aware of this problem as I couldn't find anything regarding this. 

[Jordi]

Hi there and welcome to the community,

I have never seen this issue before. Could you try doing a full reinstallation of the app, including removing your local cache/data files.

I'd also recommend checking your system for unusual applications/files.