Windows Vista introduces number of new security features to protect computer from malware. It is always good to know about them, that will help you to implement them in your computer.
The Encryption File System (EFS) is a powerful tool for encrypting information on client computers and remote file server to protect them from unauthorized users. EFS support storing user keys as well as administrative recovery keys on smart cards. If smart cards are used for logon, EFS operates in a Single Sign On mode, where it uses the logon smart card for file encryption without further prompting for the PIN. The Client Side Cache, which stores offline copies of files from remote servers, can also be encrypted with EFS. Another way that malicious software makes its way onto a user’s machine is by taking advantage of buffer overruns. Address Space Layout Randomization (ASLR) is a defense capability in Windows Vista that makes it harder for malicious code to exploit a system function. Whenever a Windows Vista computer is rebooted, ASLR randomly assigns executable images such as DLLs and EXEs to one of 256 possible locations in memory. This makes it harder for exploit code to locate and therefore take advantage of functionality inside the executables. It is very common in office environment that somehow malware got into one of the systems and from there malware spread into other systems in the local nework. To avoid those circumstances vista introduced Network Access Protection(NAP) that performs computer health policy validation. Independent hardware and software vendors can plug their security solutions into NAP, so IT administrators can choose the security solutions that meet their unique needs and NAP helps ensure that every machine on the network makes full use of those solutions.
Vista also includes the much improved Internet Explorer 7, which includes more than a dozen new security enhancements.
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