Congratulations on your wonderful gift, and Merry Christmas! You are wise to think about security for your tablet, because cybercrooks are producing malware for these devices in increasing numbers.
avast! Mobile Security prevents malware and viruses on Android devices at no cost to you. You get Anti-theft protection, remote control and remote memory wipe, plus privacy reports, anti-spyware, network management, Web protection and a firewall. avast! Free Mobile Security is available for download either via Google Play (Android Market) or our website.
Once you have downloaded, do not forget to set your PIN Recovery in the 'Settings' section. The PIN Recovery feature is the way to get access to your device in case you lose or forget your avast! PIN. You have to set it in Settings or on the avast! Portal. You can use the avast! Portal for controlling your device remotely in case it is stolen. For this operation your device must be paired with your avast! account - if you do not have one, please sign in on dedicated pages.
Have fun with your new Galaxy tablet, and please share avast! Antivirus with your friends. Happy New Year!