G Data Internet Security has in my computers in the past on several occasions Trojans in received emails identified (and moved in Qarantäne) reported portscan attacks and blocked and parried drive-by malware attacks. The sofware reports these events to the user.
I like the user interface of the software very well, I find it well detailed and pleasant in terms of colors, layout and clarity.
The manual disk scan that should run every few days despite the constant vigilance of the G Data software is capable of learning and remembers which file has not been changed since the Scan. That's why the scan is faster and settles down to a couple of times in 15 minutes for about 80 GB available hard disk space a.
For me, a great product, and this also by a German software maker.