Cyberthreats by Malware

1. 00:01For being prepared to consider cyberthreats by malware in our
2. 00:06openHPI course, we have a closer look to Nowaday's Internet.
3. 00:12Here are the smart devises which we can use to connect to the internet,
4. 00:17to do the services that are provided in the net.
5. 00:21We can use it in home, we can use it in work and in other places. So
6. 00:27we can access and use internet application by computers, by laptops, tablets, smartphones,
7. 00:34but also by television and game consoles but even more by sockets
8. 00:41and lamps, these are the Internet of Things (IoT) applications that become more and more
9. 00:48common up to tooth brushes and coffee machines that can interact over the internet.
10. 00:58Typically it's organized if we look
11. 01:01to our home environment. It is organized in a way that in the middle
12. 01:07there is a Wi-Fi router
13. 01:11with a modem which connects the home situation with the internet
14. 01:18and the Wi-Fi can be used by different devices. So we can connect
15. 01:26to the internet, we can connect by our game console or by our computer
16. 01:31over wi-fi to the internet, we can do this by our smartphone and all the devices
17. 01:36I had mentioned before.
18. 01:41The connection of our home situation, of our home wi-fi to the
19. 01:46internet is organised in a way that there is a telephone socket
20. 01:50or a cable connection
21. 01:54which connects us about such a dial-up modem, such a router
22. 01:59to a regional ISP. ISP are the Internet Service Provider or a
23. 02:07contract partner of such an internet service provider and then
24. 02:10the internet service provider
25. 02:13takes care for connecting in this case us with the internet
26. 02:18and all the other users of the internet.
27. 02:22So if we look in a more global situation, then we have many
28. 02:29different internet service providers with
29. 02:33their circle of networks around which are using this internet provider
30. 02:39to connect to the internet and these internet service provider are
31. 02:44connected to each other. They are connected
32. 02:48to each other and in this way,
33. 02:51let's have a look again, and in this way, some
34. 02:56network which is connected to this service provider can interact with users
35. 03:02that are connected to the internet by that internet service provider.
36. 03:08So for the user, the internet looks like a virtual
37. 03:14network. A homogeneous network. Although the
38. 03:18internet consists of many different small networks, here is another
39. 03:25graphic illustration. So we have different devices that
40. 03:31are connected to the internet service provider by being connected
41. 03:36in a local area network, for example like such a wi-fi network
42. 03:41and these networks are connected to the internet service providers,
43. 03:45each internet service provider has many customers,
44. 03:50many such local
45. 03:52area networks that are connected and then the internet service providers
46. 03:57are interconnected with each other by the so called backbone, a connection, very
47. 04:04fast broadband interconnection so that a machine here which
48. 04:09gets connect to the internet by means of that internet service provider
49. 04:14can easily interact with an user which is connected
50. 04:20to this local area network
51. 04:23that is connected to the internet by this internet service provider.
52. 04:28So the internet today
53. 04:31is used by everyone around the world by means of a personal network
54. 04:39or by means of public access points, libraries, airports,
55. 04:44companies and others.
56. 04:46The internet is everywhere. We can access
57. 04:51internet services by means of our computer,
58. 04:56by means of our laptop, by means of our mobile phone,
59. 04:59even radios and the typical internet of things devices.
60. 05:07The use of the internet technology is also
61. 05:12very meaningful for private business corporation.
62. 05:17They organize their corporation network by means of the -
63. 05:23by using the internet communication protocols.
64. 05:27These internet inside a private corporation is called intranet.
65. 05:34So all attacks that are working over the internet
66. 05:40are also working within such intranet because the same technology is used.
67. 05:48If we consider mobile applications then they become more and
68. 05:52more important in our society, for example each police vehicle
69. 05:57is connected to the internet for providing a fast communication,
70. 06:02each medical service
71. 06:05is connected to the internet
72. 06:08and many other things too. So the internet is
73. 06:14becoming the basic communication infrastructure
74. 06:18for our society. And also internet is changing how we communicate.
75. 06:24So typically we write short SMS or short
76. 06:29emails. In the past there was letters written and sent. Now we can do
77. 06:37this communication within seconds. We can process the information that we
78. 06:44provide in a very fast way because
79. 06:50when it is transported over the internet, it is in a form that
80. 06:53can be electronically processed.
81. 06:56And also the globalisation is
82. 07:00pushed forward because the internet does work
83. 07:05also beyond the boundaries of the national states.
84. 07:10So processing international transactions becomes easier
85. 07:15and this all characterize the internet situation today but
86. 07:23unfortunately there are no standards against cybercrime.
87. 07:29And that's the reason, because for cybercrime we need regulation,
88. 07:33we need power to force such regulations and
89. 07:39we have here a large deficit which needs to be closed
90. 07:46over the next decades. We are in this first years of the internet. Internet was invented
91. 07:53fifty or sixty years ago. The world wide
92. 07:58web which has made the internet popular is about thirty years old.
93. 08:03So we are in a very very early phase of the internet and
94. 08:08in particular the security inside the internet needs to be
95. 08:14improved over the next years.
96. 08:17So if we look here again to our internet situation, to the
97. 08:23ISPs, with the local area networks, it's a
98. 08:27connect to the internet, then the services that are provided
99. 08:32by the internet, we as a user in the middle that can access
100. 08:37that can use the services over our
101. 08:41devices and then there are the attackers.
102. 08:45And the attacker really attack all what they can get. They attack the system
103. 08:50inside the internet which are connected to the internet, they
104. 08:55attack the internet connection, so the intermediate systems
105. 09:00that connect the different
106. 09:02networks which are interconnected into the internet,
107. 09:07they attack the services here that are provided in the internet and
108. 09:12they attack the user. The users, the devices of the user and the application
109. 09:18the user is using. So the internet nowadays is really
110. 09:26an el dorado for cybercriminals and we have to learn how to protect us,
111. 09:33how to protect our data.

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