To keep up with current malware, Spybot needs to be updated with new definitions regularly.
Spybot Free Edition definitions are updated on a weekly basis, and can be manually updated using the Update symbol in Start Center.
The Home Edition and above of Spybot +AV include dedicated antivirus detection with multiple definition updates a day. These will be downloaded automatically via a scheduled tasks that you’ll never miss an update.
Please see here for instructions if you are experiencing any issues updating Spybot manually: