Scans your device after account creation, then scans again on a weekly basis; cloud definitions are always up to date. A threat definition is a set of fingerprints that characterizes viruses, spyware, or other types of unwanted items.
Monitors all newly installed memory cards and applications for threats. To learn more, see About Shields.
Monitor all visited websites for malware and phishing attempts, and blocking potentially malicious sites. To learn more, see Using Secure Web Browsing.