September 30, 2010, 8:55 AM — Windows 7 has been warmly received and swiftly adopted by businesses, with the result that many IT admins are now struggling with the platform's new security features. In addition to changes to User Account Control, BitLocker, and other features inherited from Windows Vista, Windows 7 introduces a slew of new security capabilities that businesses will want to take advantage of.
Windows 7 improves on Vista with a friendlier UAC mechanism, the ability to encrypt removable media as well as hard drive volumes, broader support for strong cryptographic ciphers, hassle-free secure remote access, and sophisticated protection against Trojan malware in the form of AppLocker, to name just a few.
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In this guide, I'll run through these and other significant security enhancements in Windows 7, and provide my recommendations for configuring and using them. I'll pay especially close attention to the new AppLocker application-control feature, which may be a Windows shop's most practical and affordable way to combat socially engineered Trojan malware.
Windows 7 has literally hundreds of security changes and additions, far too many to cover in one fell swoop. While this guide focuses on the ones that most organizations will be interested in, keep in mind that plenty of others may deserve your attention. A few the biggies not discussed here are built-in support for smart cards and biometrics, the ability to force the use of Kerberos in a feature called Restrict NTLM, and support for the new DNSSec standards, which are becoming essential to prevent DNS exploitation attacks. Also noteworthy is a new feature called Extended Protection for Authentication, which prevents many sophisticated man-in-the-middle attacks that can strike at some of our most trusted security protocols (such as SSL and TLS).