Antivirus software and data security provider BitDefender released the latest version of its security software suite, BitDefender Total Security 2009, earlier today.

New enhancements to the 2009 package include an online backup service for preserving sensitive information and instant messaging encryption to protect Yahoo! Messenger and MSN Messengers users from eavesdroppers.

A new “Laptop mode” feature automatically detects when a laptop moves to battery power and postpones regularly scheduled scans, backups and tune-ups to prevent unnecessary battery drain.

Other changes include a locally stored File Vault, proactive security for online activities, increased home network management control and an improved Gamer mode.

BitDefender differs from the other security software suites that focus on pre-existing virus lists by using “proactive B-HAVE technology that identifies and blocks new and zero-day threats,” states the company release. According to BitDefender, Total Security 2009 will also keep PCs running “at optimal speed and protected from data loss.”

A yearly subscription is available for USD $69.95. The 3-PC license is priced at $79.95.