Bitdefender Internet Security 2015 builds on technology awarded by AV-TEST Best Protection for three years straight, and Best Performance for system speed. It is exceptionally easy to use. It detects when you are working, playing, or watching movies, and prevents apps from slowing down your system. OneClick Optimizer frees up hard disk space. Besides unrivalled antimalware protection, Bitdefender Internet Security 2015 offers network protection by preventing unauthorised access to your private data with a two-way firewall. Additionally, the state-of-the-art antispam technology blocks all unwanted e-mails, and keeps your children safe by helping you monitor their activities with the complete yet subtle Parental Control.