1 00:00:02,440 --> 00:00:09,230 We also have patch Garda's additional security as we know from one of the earlier lectures. 2 00:00:09,460 --> 00:00:15,100 The patch card program is designed to prevent changes in the kernel system structure which are incompatible 3 00:00:15,100 --> 00:00:16,840 with Microsoft assumptions. 4 00:00:19,120 --> 00:00:25,050 The operation is based on the fact that when such a change is detected the system is immediately stopped. 5 00:00:27,390 --> 00:00:32,760 However PESCHARDT does not protect against viruses root kits or changes to the disk. 6 00:00:37,080 --> 00:00:43,730 The same occurs with kernel mode code signing it's additional protection that prevents loading unsighted 7 00:00:43,730 --> 00:00:49,090 and drivers in the 64 bit version of the operating system. 8 00:00:49,090 --> 00:00:56,690 All drivers must be signed However it is not security that can be bypassed. 9 00:00:56,760 --> 00:01:00,780 It's not even designed as such but we've already mentioned this 10 00:01:05,260 --> 00:01:12,310 newer versions of Windows particularly 64 bit versions in addition to security elements have a few built 11 00:01:12,310 --> 00:01:13,200 in safeguards 12 00:01:15,720 --> 00:01:18,540 even if the application does not use such safeguards. 13 00:01:18,630 --> 00:01:23,250 We can configure it virtually using emet for it to use such safeguards. 14 00:01:24,160 --> 00:01:29,890 The net result is that work in a 64 bit environment is inherently safer. 15 00:01:29,980 --> 00:01:30,460 Thank you.