Some of the security features include items such as automatic crash recovery. Automatic Crash Recovery insures tabs are isolated during an event that may cause a crash, this advanced browser treats these tabs independently and recovers the user's last session.
With Data Execution Prevention (DEP), this feature added to Windows Vista Service Pack 1 (Sure to be in Windows 7), adds a security enhancement that helps to prevent viruses and other malicious threats from infecting your computer. With other browsers and former versions, these malicious threats could load into memory and infect your computer.
IE8 also adds a colored address bar that allows the end user to identify possible malicious sites. This coloring of the address bar changes from white, red or green depending on the type of site. Red sites can identify a known phishing site or non secure site. This domain highlighting alerts the user on the type of site they are entering. With cross site scripting, Microsoft's protection against this type of code alerts the user and offers a return to home button for safety. Microsoft's SmartScreen filter insures your data, privacy and identity is protected.
With clickjacking making headlines throughout the year, clickjacking allowed malicious attackers to put malicious invisible links into websites. End users could inadvertently, click on a hidden link that causes harmful code to be delivered to the end user. While clickjacking relies on protection being delivered from webmasters as well as browsers in IE8, the tags in the code is still questionable and many experts recommend other browsers to protect against this threat.