Features new to Windows Vista Windows Vista, Internet Explorer operates in a special "Protected Mode", which runs the browser in a security sandbox that has no access to the rest of the operating system or file system, except the "Temporary Internet Files" folder. This feature aims to mitigate problems whereby newly discovered flaws in the browser (or in ActiveX controls hosted inside it) allowed hackers to subversively install software on the user's computer (typically spyware). Internet Explorer 7 in Windows Vista also exclusively supports Advanced Encryption Standard (AES) key lengths up to 256 bits outlined in RFC 3268 and certificate revocation checking using Online Certificate
Features new to Windows Vista for Windows Vista was developed with the SDL methodology, and all existing code was reviewed and refactored to improve security. Some of the most significant and most discussed security features included with Windows Vista include User Account Control, Kernel Patch Protection, BitLocker Drive Encryption, Mandatory Integrity Control, Digital Rights Management, TCP/IP stack security improvements, Address Space Layout Randomization and Encrypting File System and cryptography improvements. Additionally, Windows Vista includes a range of parental controls, which give owners of a computer a set of tools to limit what other accounts on a computer can do, and an improved Windows Firewall which