WEBVTT 00:00.500 --> 00:06.720 We are now going to talk about operating systems in relation to security now an operating system or 00:06.810 --> 00:15.300 OS is system software that manages computer hardware and software resources and provides common services 00:15.590 --> 00:17.440 for computer applications. 00:17.460 --> 00:23.370 The operating system is the main software on a computer that controls all the applications. 00:23.370 --> 00:33.270 Examples of desktop operating systems include Windows 7 a 10 also Mac us Debian Linux a boon to Linux 00:33.330 --> 00:37.700 BSD salon resect cetera on the mobile phone. 00:37.840 --> 00:47.310 There are operating systems such as iOS for Apple Android Windows OSs BlackBerry OSS Symbian and so 00:47.310 --> 00:48.000 on. 00:48.090 --> 00:52.940 The operating system has full control of all actions on a device. 00:52.980 --> 01:00.090 If the operating system isn't secure or is compromised it is absolutely game over from the start for 01:00.090 --> 01:01.230 your security. 01:01.230 --> 01:07.300 The OS needs to be a secure base to hope to have a secure environment. 01:07.650 --> 01:12.930 There are a lot of misconceptions when it comes to operating systems and security. 01:12.960 --> 01:15.990 You may have heard for example that Macs can't get viruses. 01:15.990 --> 01:17.460 Not true. 01:17.460 --> 01:21.200 Lots of people also say that Windows is terrible when it comes to security. 01:21.210 --> 01:23.590 Not necessarily true either. 01:23.610 --> 01:28.830 Then you've got people in the Linux camp that think Linux is the greatest operating system for security 01:28.830 --> 01:29.710 without fault. 01:29.790 --> 01:34.190 Not true Linux like any operating system isn't perfect. 01:34.380 --> 01:41.700 So let's explore some of those beliefs based on facts and statistics over the next few lectures and 01:41.700 --> 01:47.340 see where we actually end up when it comes to the security of Common Operating Systems. 01:47.340 --> 01:54.180 First let's consider the security features available within operating systems and also available third 01:54.180 --> 01:57.590 party apps for those operating systems. 01:57.720 --> 02:01.640 So Windows Windows has got a bad track record. 02:01.650 --> 02:03.670 There's no doubt about that. 02:03.690 --> 02:10.110 It's had weak security design from the beginning but you have to give credit where credit is due. 02:10.140 --> 02:16.380 In the more recent operating systems Microsoft has started to take security seriously and with its later 02:16.380 --> 02:23.550 products and its later security features like bit lock the device guard windows halo windows trusted 02:23.640 --> 02:24.180 apps. 02:24.300 --> 02:27.870 It has a fairly solid set of security features. 02:27.870 --> 02:33.570 Now the thing that lets windows down especially with the more recent Windows 10 are the tracking and 02:33.570 --> 02:40.230 privacy issues which is a slightly different thing to security features but it does put some people 02:40.230 --> 02:41.010 off. 02:41.040 --> 02:46.590 We will be covering Windows security and privacy features and applications in much more detail as we 02:46.590 --> 02:47.810 go through the course. 02:47.820 --> 02:49.390 This is an overview. 02:49.400 --> 02:57.510 Next Marcos currently again like Windows has a reasonable solid base of security features things like 02:57.510 --> 03:04.410 address space layout randomisation application sandboxing Firebolt to privacy controls. 03:04.440 --> 03:09.050 Apple's trusted store apps and so on all strong security features. 03:09.150 --> 03:16.520 But if you were to compare Windows 10 to the latest Mac course Windows has more security features and 03:16.530 --> 03:22.830 much more third party security applications are available for Windows over Mac of sorts. 03:22.840 --> 03:28.410 I mean by that so for example if you're looking for a good application firewall for Mac us or another 03:28.470 --> 03:32.140 security product or feature you're going to get from a third party. 03:32.220 --> 03:34.410 You have limited choice. 03:34.410 --> 03:37.350 There just isn't much available for Windows. 03:37.350 --> 03:39.410 The choice is almost endless. 03:39.420 --> 03:44.580 We will be covering makkal security and privacy features and applications in more detail as we go through 03:44.580 --> 03:45.330 the course. 03:45.420 --> 03:52.590 Then we have Linux Linux type operating systems BSD type Unix like operating systems. 03:52.620 --> 03:58.830 There's a large variety of these operating systems so I'm bucketing them all together for convenience 03:58.830 --> 04:00.090 here for this lecture. 04:00.120 --> 04:04.930 If you're looking for the most secure operating systems this is where you're going to find them. 04:04.950 --> 04:13.500 The likes of cubes OS tale's Debian Arch Linux would be good examples of security and privacy focused 04:13.620 --> 04:20.070 operating systems and we will of course be covering cubes as tails and other Linux operating system 04:20.070 --> 04:24.740 security features and applications as we go through the course and just for your information if you're 04:24.750 --> 04:33.260 looking for beginner friendly Linux operating systems then consider Manjari you a bound to and mint. 04:33.480 --> 04:40.800 But Debian is my recommendation for a general use operating system that also consider security and privacy. 04:40.800 --> 04:47.220 If you're looking for a Linux operating system when we consider Windows Mac and Linux Windows has the 04:47.220 --> 04:54.300 most security features and third party security applications available Mac has the least security features 04:54.300 --> 05:00.470 and third party security applications available and Linux is where this security focused rating systems 05:00.470 --> 05:01.470 can be found. 05:01.520 --> 05:09.200 Windows Mac has a linux based on their security features can all be used as a secure base operating 05:09.200 --> 05:09.770 system. 05:09.920 --> 05:16.790 But if you need higher levels of protection you'll be looking towards Linux type operating systems on 05:16.790 --> 05:18.290 the mobile platform. 05:18.290 --> 05:24.200 The main competing operating systems are android from Google and also from Apple. 05:24.200 --> 05:30.110 Android is a more open operating system when you're allowed to do more with it and you can do more with 05:30.110 --> 05:33.780 it which is great but this isn't good for security there. 05:33.790 --> 05:37.490 IOS is a closed system restricting what you can do. 05:37.520 --> 05:42.890 You can do less on it than you can on Android but because it's a restricted operating system a close 05:42.890 --> 05:46.010 operating system this is good for security. 05:46.010 --> 05:52.390 Android is improving security all the time but iOS from Apple will be the market leader. 05:52.390 --> 05:56.370 If you're looking for a secure mobile operating system right now.