Passage: On January 6, 2005, Microsoft released a Beta version of Microsoft AntiSpyware, based upon the previously released Giant AntiSpyware. On February 14, 2006, Microsoft AntiSpyware became Windows Defender with the release of Beta 2. Windows Defender is a freeware program designed to protect against spyware and other unwanted software. Windows XP and Windows Server 2003 users who have genuine copies of Microsoft Windows can freely download the program from Microsoft's web site, and Windows Defender ships as part of Windows Vista and 7. In Windows 8, Windows Defender and Microsoft Security Essentials have been combined into a single program, named Windows Defender. It is based on Microsoft Security Essentials, borrowing its features and user interface. Although it is enabled by default, it can be turned off to use another anti-virus solution. Windows Malicious Software Removal Tool and the optional Microsoft Safety Scanner are two other free security products offered by Microsoft. In the Windows 10 Anniversary Update, Microsoft introduced the Limited Periodic Scanning feature, which allows Windows Defender to scan, detect, and remove any threats that third-party anti-virus software missed. The Advanced Threat Protection service is introduced for enterprise users. The new service uses cloud service to detect and take actions on advanced network attacks.

Question: What type of cyber protection software did Microsoft release on January 6, 2005?
Microsoft AntiSpyware