OPAL is allowed to work with F-Secure and altcoin.center, but i like the security since long time and i never had problem to bypass f-secure antivirus (antivirus only)... this is not always the case with Avira. Now i appreciate the initiative and i'm sure F-secure can be the best in the cryptocurrency security, if they start to work on it.
So F-secure stay one of the best, but i can't lie... avira free is in the first place since long time (even in the media and tester).
I give you a better solution for all people noob in security:
1: Avira antivirus free / F-secure if you want
2: a Keyscambler tool (this is not optional ... take it)
If you have the time to configure a firewall do it.
And if you have a question ask it.
ps: keyscambler -> http://www.qfxsoftware.com/download.htm
EDIT: Happy new year
Welcome to the internet It's amazing how people feel they can act when they are 'protected' behind a screen and a keyboard.
Also, @StonerStanley (nice nick. ha). OPAL team did not "give" 1 million coins to any pirate. In fact they are working to do quite the opposite in retrieving them, and the 1 million is a big over estimate.