1 00:00:00,990 --> 00:00:08,550 So as we know from the previous lectures Tales is alive and an amnesiac operating system. 2 00:00:08,550 --> 00:00:16,110 What we mean by this is it leaves no traces on the computer that it gets used on and it does this by 3 00:00:16,110 --> 00:00:18,930 never using the internal storage. 4 00:00:18,930 --> 00:00:22,720 It runs completely from the RAM which is securely wiped. 5 00:00:22,740 --> 00:00:30,510 Once you turn off or restart the computer then when that computer boots it will boot into its default 6 00:00:30,570 --> 00:00:32,070 operating system. 7 00:00:32,070 --> 00:00:36,300 This system will work exactly the same way that it was working before. 8 00:00:36,690 --> 00:00:42,700 And even if the whole computer gets inspected there will be no traces of what you've done. 9 00:00:42,810 --> 00:00:49,210 And there will even be no traces of tails being used on that computer. 10 00:00:49,420 --> 00:00:53,430 Now this is a great feature that serves the main purpose of tails. 11 00:00:53,560 --> 00:01:01,090 So it improves security because even if someone manages to hack into that computer and install malware 12 00:01:01,120 --> 00:01:05,380 or changed the settings to compromise your privacy and anonymity. 13 00:01:05,380 --> 00:01:11,170 Once you restart and boot in into tails everything will be removed because nothing can be stored on 14 00:01:11,170 --> 00:01:12,640 that system. 15 00:01:12,640 --> 00:01:18,760 Not only that but if you are dealing with sensitive files you can do so without worrying about someone 16 00:01:18,760 --> 00:01:24,940 being able to recover these files because they will never be stored on the system. 17 00:01:24,940 --> 00:01:31,150 So these are great features that serve the main purpose of tells which is an operating system that is 18 00:01:31,150 --> 00:01:34,580 designed to improve our anonymity and privacy. 19 00:01:35,500 --> 00:01:42,220 But this feature is also a little bit inconvenient because like we said we cannot store anything on 20 00:01:42,220 --> 00:01:43,240 the system. 21 00:01:43,240 --> 00:01:49,840 So not only that we can't store files and passwords or keys which is something that we might want to 22 00:01:49,840 --> 00:01:50,610 do. 23 00:01:50,710 --> 00:01:55,150 We also can't save any changes we make to any of the programs. 24 00:01:55,150 --> 00:02:00,730 For example if you configure the mail client or if you changed it or settings or even if you connect 25 00:02:00,730 --> 00:02:06,330 to a Wi-Fi network all of these settings will be removed and forgotten. 26 00:02:06,430 --> 00:02:09,370 Once you restart or boot into tales again. 27 00:02:09,400 --> 00:02:14,530 So every time you boot entails you'll have to go and connect to the network that you always connect 28 00:02:14,530 --> 00:02:15,100 to. 29 00:02:15,160 --> 00:02:20,200 You'll have to go and change the or browser settings if you change them if you set up a mail client. 30 00:02:20,200 --> 00:02:27,220 You'll have to go and set it up again which can be a bit troublesome and take a bit of time. 31 00:02:27,570 --> 00:02:36,360 Now the solution to this is to enable persistence on Intel's persistence allows us to store files passwords 32 00:02:36,360 --> 00:02:40,560 keys or program settings that we modify. 33 00:02:40,560 --> 00:02:46,000 It does this by encrypting whatever that's left on the USB flash drive. 34 00:02:46,050 --> 00:02:52,940 So it still doesn't use the internal storage the internal storage will still remain untouched and it 35 00:02:52,950 --> 00:02:57,300 will only rely on this piece remaining on that USB stick. 36 00:02:57,520 --> 00:03:04,940 It will encrypt that space to improve its security and then when you log in you will have two options. 37 00:03:05,040 --> 00:03:12,840 You can log in with the live default option where nothing is stored or you can unlock the persistent 38 00:03:12,840 --> 00:03:20,880 storage where you'll be able to store files in a specific directory install programs edit settings and 39 00:03:20,910 --> 00:03:28,760 everything will be stored like any other operating system so with this you'll be able to store files 40 00:03:28,760 --> 00:03:29,820 passwords keys. 41 00:03:29,840 --> 00:03:35,330 Like I said you'll be able to modify settings so if you connect to a network or if you log into a mail 42 00:03:35,330 --> 00:03:38,970 client all of these settings will be stored. 43 00:03:38,990 --> 00:03:42,440 So when you log in again you won't have to do them again. 44 00:03:42,440 --> 00:03:49,790 You'll also be able to install programs or a browser plugins and so on now the last two benefits are 45 00:03:49,790 --> 00:03:56,030 in red for a reason because you need to be careful when you're doing these things because you need to 46 00:03:56,030 --> 00:04:00,230 keep in mind that Toles was made with security in mind. 47 00:04:00,440 --> 00:04:07,400 So all of the programs that come pre installed in it are configured in a way to protect your anonymity 48 00:04:07,460 --> 00:04:08,690 and privacy. 49 00:04:08,690 --> 00:04:15,380 Therefore when you modify these settings or if you install more programs these new programs or these 50 00:04:15,380 --> 00:04:19,850 modified settings might compromise your anonymity and privacy. 51 00:04:20,240 --> 00:04:26,370 So only installed programs or modify settings if you know what you're doing. 52 00:04:26,450 --> 00:04:34,520 Not only that but tor entails work best when it is hard to distinguish between people that are using 53 00:04:34,520 --> 00:04:35,830 these systems. 54 00:04:35,870 --> 00:04:41,570 Therefore when you modify settings or install extra programs you're becoming more unique. 55 00:04:41,570 --> 00:04:48,710 Therefore it would be easier to detect you because you're more distinguishable than other users than 56 00:04:48,710 --> 00:04:54,250 the people that are using Tor and tails with the default settings. 57 00:04:54,430 --> 00:05:00,580 So with keeping all of this in mind in the next lecture I'm going to show you how to enable persistence 58 00:05:00,730 --> 00:05:01,450 on tells.