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    <journal-meta />
    <article-meta>
      <title-group>
        <article-title>Methods of Monitoring and Collection of User Data on the Example of Facebook</article-title>
      </title-group>
      <contrib-group>
        <contrib contrib-type="author">
          <string-name>Andreja Samčović</string-name>
          <xref ref-type="aff" rid="aff0">0</xref>
        </contrib>
        <aff id="aff0">
          <label>0</label>
          <institution>Faculty of Transport and Trafic Engineering, University of Belgrade</institution>
          ,
          <addr-line>Vojvode Stepe 305, Belgrade</addr-line>
          ,
          <country country="RS">Serbia</country>
        </aff>
      </contrib-group>
      <abstract>
        <p>This paper presents a global overview on the tools and processes that are used every day to collect data on all platforms where the social networks are present. Furthermore, this work reviews the various channels of data application. The central theme is based on drawing the attention of users in all the ways in which the owners of the social networks monitor and record activities of the users. Mechanisms of data collection are described on the example of Facebook, depending on device and users' choice. Some problems of privacy and security are considered in Meta virtual reality.</p>
      </abstract>
      <kwd-group>
        <kwd>eol&gt;privacy</kwd>
        <kwd>user data</kwd>
        <kwd>information</kwd>
        <kwd>social network</kwd>
        <kwd>Facebook</kwd>
      </kwd-group>
    </article-meta>
  </front>
  <body>
    <sec id="sec-1">
      <title>1. Introduction</title>
      <p>
        The human need for connection and communication has
historically been one of the strongest motivations for
development technology and society. In the modern
information society, it is possible to exchange stories and
experiences with people who are on the other side of
the planet. One of the most popular channels of
communication in the modern age is represented by social
networks. The leader in the social network sector
according to annual revenue and number of users is Facebook
[
        <xref ref-type="bibr" rid="ref1">1</xref>
        ]. As a social network, Facebook is one of the largest
generators of user data. The mechanisms and methods
by which a company Facebook.com collects user data
vary depending on a large number of diferent factors.
      </p>
      <p>The first version of Facebook was open only to
Harvard University students. The basic capability provided
by Facebook is to collect and display information about
the identity of all students at Harvard. The popularity
that the network achieved in record time gave an
additional wind behind the team, and after an initial period
of slightly less than two years, Facebook was oficially
launched globally in 2006. The great interest in Facebook
on a global scale is best described by the fact that it
already reached the magical number of one million active
users during the first year. Some of the key
functionalities that have attracted users are primarily the ease of 2. Voluntary sharing of user data
connecting with other users on the platform. The
simplicity and efectiveness of the "add a friend" button is While modern social networks have a wide range of
something that the competition had not applied until technologically advanced mechanisms that monitor and
then. record the behavior of users online at all times, not all
reThe design philosophy is exactly what Facebook man- sponsibility can be pointed at the creators of the network.</p>
      <p>
        Perhaps a seemingly less technologically impressive, but
BISEC’22: 13th International Conference on Business Information far more elegant solution to obtain user information was
Security, December 03, 2022, Belgrade, Serbia to simply ask users to provide that information. An
im*$Coarnrdersepjo@nsdfi.nbgg.aauc.trhso(rA.. Samčović) pressive number of psychologists, anthropologists and
© 2023 Copyright for this paper by its authors. Use permitted under Creative Commons License experts in human behavior and habits have worked day
CPWrEooUrckReshdoinpgs IhStpN:/c1e6u1r3-w-0s.o7r3g ACttEribUutRion W4.0oInrtekrnsahtioonpal (PCCroBYce4.0e).dings (CEUR-WS.org) and night to create a platform that will convince people
aged to set apart from the competition. While other
platforms focused on a robust, powerful system that gives
full control to the user, and did not focus on ease of use
and responsiveness of the pages. Facebook was focused
on simplicity and uniformity of user profiles and
experiences. In the beginning, Facebook’s biggest competitor
on the market was the social network Myspace [
        <xref ref-type="bibr" rid="ref2">2</xref>
        ].
      </p>
      <p>The biggest diference in the approach of these two
social networks is reflected in the issue of user identity
online. On the Internet, before the time of Facebook, a
degree of anonymity was assumed on Internet sites and
social networks [3]. Generated usernames were used,
where great emphasis was placed on the username not
containing the user’s real credentials.</p>
      <p>Facebook invoked a tectonic change in the situation at
the time by allowing people to present themselves with
their first name, last name and profile picture, as well as
additional information about themselves if desired. The
design focused on transparency and de-anonymization
of users at the time was very positively received by users.</p>
      <p>The biggest advantages are that users finally have the
opportunity to present themselves on the Internet, and
to make real, sincere friendships with people from all
over the world.
and instill confidence in them that they can leave their problem. The foundation of the system that has grown
personal data to an unknown third party. Facebook had into today’s most comprehensive individual tracking
sysa pioneering status in this regard because they tried, and tem was based on technology that was created almost
years later it turned out that they succeeded, in chang- a decade before the creation of Facebook. In the initial
ing the previously anonymous, impersonal nature of the stages, Facebook relied on internet cookie technology.
Internet into an environment where people have confi- Today, it can be said with great certainty that there is
dence and desire to stand behind their views with their no site on the Internet that does not use the
functionalifrst name, last name, and their real picture. ity of internet cookies, at least at the lowest functional</p>
      <p>Apart from presenting Facebook as a safe platform level. Facebook, of course, did not miss the opportunity
that will take care of the privacy of users and their data, to implement cookies on its social network. The
comanother key factor in creating the entire user experience plexity and thoroughness of the information that could
of the site is the big message that appears on the first page be collected using cookies grew over time, and so did the
of the platform, when creating a new account [4]. The amount of information [6]. Given that Facebook’s focus
message emphasized in the foreground is "It’s free and was selling advertising space to the right clientele, it was
always will be". Nowadays, the attraction and influence clear from the start that the imperative was to gather as
of free goods and services on the individual have been much information as possible. Apart from the
informathoroughly investigated and the mechanisms that are tion that users voluntarily left on the platform, which
activated in the human brain when they see a free ofer was only a fragment of the overall picture, of significantly
are used daily in the manipulation and persuasion of greater interest to Facebook and client companies were
users on the Internet. Some of the information that users the "invisible" behaviors of users on the social network.
voluntarily provide to Facebook, and share publicly with Internet cookies made exactly that possible. Some of the
their "friends" online are [5]: information that is still recorded and stored in Facebook’s
internet cookies, and later transferred to the company’s
• Name and surname of the user account; servers for analysis and further processing, can be
di• The e-mail address used to create an account - vided depending on the sphere of interest that needs to
mandatory confirmation of the validity of the e- be processed [6].</p>
      <p>mail address; In the early years of Facebook, the vast majority of
• User’s date of birth - necessary when registering users used Internet browsers to access Facebook. The
an account; information that was of interest at the time, and related
• Gender of the user; to the device from which Facebook was accessed, was:
• Mobile phone number - required to confirm the</p>
      <p>user account; • Name and version of the user’s internet browser;
• Synchronization of contacts from the mobile • Browser window size;
phone - access to all phone numbers and names • Device operating system;
of contacts on the mobile device; • Devices connected to the computer;
• Synchronization of e-mail contacts - access to all • Device configuration, in the initial stages
excluaddresses and contacts from the registered e-mail sively related to computers;
account; • Whether the access is via DS (Digital Subscriber
• Data generated through social media posts; Loop), dial-up, or one of the mobile Internet
ac• Data generated through correspondence with cess;</p>
      <p>other online users; • IP address of the device being accessed.
• Linking accounts with sites that have the option
to integrate with Facebook.</p>
      <sec id="sec-1-1">
        <title>Cookies that are created with the aim of obtaining an</title>
        <p>overall technological picture of the user may not appear</p>
        <p>In the initial stages of the platform’s development, to be invasive or too much of a threat to the user’s privacy,
given the technological limitations, the greater focus on but they are not the only cookies used. The applications
obtaining user data depended directly on the user’s will- and potential abuses of information obtained through
ingness to leave that data. With the advancement of internet cookies are comparatively more important when
technology the integrations became more serious. The it comes to users who do not have an online account, and
rudimentary and relatively high complexity of the Inter- when it comes to sites that do not have direct integration
net browser systems at the time made the initial steps with Facebook.
in creating a user tracking ecosystem quite dificult, but Internet cookies alone could fulfill the requirements
with the great interest of companies as well as the com- that were needed, but their big drawback is that users
ing wave of popularity of social networks, diferent net- would very quickly get an insight into the true amount
works started to create their own solutions to the current and type of data that Facebook collects from them. The
situation on the market at the time led Facebook to a
situation where it was necessary to develop new solutions
that would be oriented towards the future. Information
about Facebook’s tools used for in-house analysis is
almost unavailable, inaccessible, and it is dificult to get a
glimpse into the real system behind the aforementioned
giant social network.</p>
        <p>Having that in mind, it is important to emphasize that
the entire functionality of Facebook’s tools and
mechanisms is still largely undiscovered, and for good reason.</p>
        <p>The information that is currently available to the
public is enough to raise serious concerns among network
users, not only for them, but also for people who do not
have accounts on social networks. The technologies that
Facebook itself publicly admits to using on its platforms
are solutions that have grown over the years in their Figure 1: Visual presentation of collected data.
capabilities and the amount of data they can collect.</p>
        <p>The mechanisms that are implemented have diferent
names, and it is dificult to distinguish between them 3. Collection of user data on
without looking "behind the curtain" into the protocols
and the exact processes that these mechanisms execute. mobile devices
In professional literature, the terms tracker, follower,
social plugins, embedded tracker, deeply integrated track- The first decade of the third millennium was marked
ers, highly specialized trackers and many others are men- by the rapid development of Internet technologies and
tioned. companies specialized in doing business in the new era.</p>
        <p>The list of data collected through trackers is not com- Facebook has developed systems for tracking and
collectplete, but the knowledge and information that is available ing data on user computers to a level where it
comfortis enough to raise significant questions about the legality, ably took over an ever-larger part of the market from
necessity, ethical and moral correctness of data collec- competing marketing companies. A big change in the
tion. It is important to emphasize that the systems are ifeld of information technology was brought about by
purposefully designed and created with the user in focus. the popularization of portable devices.
A visual presentation of the collected data can be found Thanks to the development of new platforms for
acin Figure 1 [6]. cessing the Internet, there have been changes in the
be</p>
        <p>Some of the information that there is evidence of being havior and habits of the the users users themselves. Sites
collected through trackers are: that until then were primarily designed for access from
desktop computers had had to be adapted to new
for• Friends in social circles; mats and user requirements. The large heterogeneity of
• Groups, pages, membership and activities therein; devices from the the technological side put the internet
platforms at the time in a problem, because it became
• All interaction with posts and other members; necessary for the user experience on all devices to be
• Monitoring of "liked" activities; be the best possible. It became clear that adapting the
• Monitoring activities related to events posted on- site site for all devices is simply not profitable, and that
line; that it is necessary to find a new solution for the new
• Collection and monitoring of data on photos and new era of devices. The direction the industry turned
video content; was to switch to specialized stand-alone applications
in• Information about time spent on profiles and con- stead of the previous focus on accessing platforms via
tents; internet browsers, where the site was the the focus, and
• Information about published content; the central point of user interaction with many sites. In
• Assessments of the riskiness of user behavior; order to maintain their popularity, social networks have
• Tracking cursor and keyboard activity on the site. been forced to engage in the struggle to create the best
user application for iOS, Android and other operating
systems, primarily designed for portable devices.</p>
        <p>Facebook initially had dificulty creating a successful
app, and they ran into into a lot of problems during initial
development. Some Some of the biggest problems they
had to overcome e were related to the limitations of the
processing power power of mobile devices. At the
beginning of the second decade, mobile devices had relatively
modest chips, which chips, which did not provide
amazing performance, but the priority was on economy and
extended battery battery life, because it was necessary
to use energy y to to power new touch screen screens of
larger dimensions. The lower processor power compared
to to desktop computers made it quite dificult to
implement a monitoring and collection system, but but it was
not the only limitation. The memory on portable portable
devices was very limited and relatively slow, slow, so it
was necessary to keep the amount of data at the lowest
level, so that users would not be forced into not be forced
into a situation where they have to delete the application
in order to be able to use their device. For both factors,
the company managed to make a compromise and find a
solution to adapt to the new situation. The factor they
have not been able to deal with in the best way is the
limitation of data flow.</p>
        <p>Namely, on a global level, access to fast broadband
Internet for mobile devices has not yet been solved in
the best possible way. Data transfer was slow, partly
due to poor network infrastructure, partly due to device
performance, and expences for the user because service
providers had limited capacity and network coverage.</p>
        <p>Facebook then found itself in a dificult situation because
it faced the choice of reducing the amount of data that
it will exchange with users or to continue collecting and
researching a completely new market of data and passing
that cost to the user. The choice from Facebook’s point of
view was clear, the priority was on profit and they
continued with their policy of aggressively collecting user data.</p>
        <p>A fact that Facebook saw earlier than its competition was
the potential of new information it could collect from
users’ mobile devices.</p>
        <p>Facebook noticed that there was a whole new
dimension of data that it could be collected, analyzed and
applied thanks to new platforms and technology. The
biggest diference compared to desktop devices is
mobility. Until then, computers were mostly fixed in one place
and used from the same place, which did not give
companies the opportunity to monitor the movement of users, Figure 2: Collected information on mobile device.
because they accessed social networks only through the
most frequent fixed devices. Information about the
location and movement of users has become a kind of "gold well as the camera. While users thought that the app only
mine" for collecting user data. The application of col- listens when voice messages are being recorded, it turns
lected information about the user’s location has become out that once the user allows access to the microphone,
a priority, due to its great analytical and monetary value. the app has the ability to have constant access, both when
One example of collected information is shown in Figure the app is active and when it’s not, and when the phone is
2. active, and when is in standby mode. Facebook sufered
a great outcry from users, with a large number of people
leaving the network, but in the end the fact still went
unnoticed by most users.</p>
        <p>A significant diference between desktop and mobile
devices is that mobile devices have a microphone,
nowadays more than one, which is always active. Facebook’s
app had the ability to access the devices’ microphones as</p>
        <p>The camera on mobile devices is also in the same
situation. Without the user’s knowledge and confirmation,
the app can access the camera. Almost all metrics that
were used to collect data on desktop computers have been
adapted for mobile applications. One of the new sets of
information that has become of much greater interest is
the set of information about the use of the device itself.</p>
        <p>It primarily refers to the time spent with the screen, and
the way and time the user spends on the device, which
was one of the tricks up the sleeve for Facebook’s further
business.</p>
        <p>The app required permission to write data to the de- Figure 3: Metaverse scene.
vice’s local storage to function properly, but Facebook
went a step further and enabled scanning and
manipulation of files stored on the device. While there is currently
no publicly available evidence of malicious manipulation
of data on the devices, it is publicly available that
Facebook reviews and checks the files on the phone with the
aim of analyzing all other applications that are installed
on the mobile device. Numerous procedures and
investigations have been launched into the legality of tracking
users within these limits. Facebook’s smart moves at the
dawn of the smartphone era have allowed the company
to further distance itself from the competition in terms of
revenue, popularity and technology. Users got new
functionalities and global connectivity with all other users,
and in principle for free, but what is the real price that
users pay?</p>
      </sec>
    </sec>
    <sec id="sec-2">
      <title>4. Collection of user data through virtual reality systems</title>
      <p>The next revolution that has raised the global
telecommunications and Internet industry to a higher level is the
development and progress in the field of virtual reality
(VR) technology [7]. In the middle of the previous decade,
emphasis was placed on creating virtual environments
for socializing and communicating with other people,
with the aim of bringing people who are on opposite
ends of the world closer together digitally. As before,
Facebook was among the first to see the potential value
and perspective of this idea and technology and joined
in the earliest stages of creation.</p>
      <p>The confidence invested in this project is best
described by Facebook’s purchase of Oculus Rift for $2
billion, then a pioneer in the design and development of
software and hardware for virtual reality. As has been
established so far, new technologies have brought with
them new challenges that must be overcome. The
diferences compared to the previous changes are enormous,
and the biggest ones are reflected in the very scope and
ambition of the project.</p>
      <p>The idea, which has been prepared, represents the
unification of all Facebook networks of applications and
services under one name - Meta, and the virtual reality
project is available to users – Metaverse [8]. One example
of Metaverse scene is on Figure 3. After almost a decade
of development, the project is only on the verge of testing
with a limited number of users. Facebook did take over
the production of hardware and software in cooperation
with Oculus Rift, but due to the circumstances of the
global crisis and the pandemic, the project was forced to
slow down, and the public launch was postponed. The
aspects of the project that have not been delayed relate to
the hardware components that were already with users
under the umbrella of Oculus Rift, while Facebook
contributed its software environment and support.</p>
      <p>For optimal use of virtual reality services, it is
necessary to adjust living space in a way that will allow
the easiest use and interaction with the digital
environment. The recommendation of companies that market
services based on virtual reality create the best user
experience is based on the creation of an optimal environment
for monitoring individual behavior. In order to register
movement in the space of virtual reality, it is necessary
to install cameras in living space that will monitor the
location and change of location of the user while using
the platform. When configuring the system for the first
time, it is necessary to calibrate the system to recognize
the individual and adequately adjust other aspects of the
system to best adapt to the user’s inputs.</p>
      <p>For the optimal operation of Meta, and virtual reality
software, it is necessary to collect and process a
considerable number of diferent data from a large number of
input devices located in the hardware system. During
the actual use of the network, the system monitors and
records data that until the recent past were dificult to
imagine, at least on a physical and medical level. Data
collected in more physically demanding activities that
can be experienced through virtual reality are of great
value to the entire health, pharmaceutical and medical
insurance industry. Data on fitness, physical activity and
vital data such as blood pressure and percentage of
oxygen in the blood represent very specific data about users,
because the way in which they are processed and then is obtained by applying various solutions, from internet
distributed to the users themselves represents a complex cookies, integrated trackers, tracking activities on
websystem [7]. sites, tracking contacts, sensors and memory on mobile</p>
      <p>Through the use of virtual reality technology, all users devices, all the way to home mapping, constantly on
miagree that their interaction is actively monitored and crophones with voice recognition and cameras with user
analyzed. Through the terms of use of Meta, it is stated face recognition.
that everything that happens in the Metaverse, i.e. in the While the sanctions and fines the company sufered
space of virtual reality, can be collected and analyzed by were comparatively mild in relation to the damage they
Facebook. The way users consume virtual reality is sig- caused, some users gave up using the network, while
nificantly more active and present than social networks. the vast majority continued to spend time on Facebook.
Interaction with other users is based on active conver- Legislation regarding the protection of user data has been
sation, not messages. Although that functionality also tightened in recent years, but company still left with too
exists, the emphasis is placed on an approximately au- much room for abuse. Most of the responsibility lies with
thentic resemblance to reality. Users have the option to users and their desire and efort to try to protect their
create their own digital character based on their own privacy from the prying eyes of big companies.
appearance and to enter into virtual chatrooms, games The development of tools to protect user privacy has
or creative activities, while on the other hand, business gained popularity in the past few years, mostly due to
users are ofered the option of creating virtual meetings the publication of numerous lapses made by companies
and joint work activities. Users must be aware that every dealing with social networks. In the center of attention
online exchange is under the direct scrutiny of Facebook are Internet browsers and their options that hide at least
and will be used to create user profiles and maximize the part of the activity from trackers, while on mobile devices
profits that users will generate for the company. monitoring is limited through access permissions to
vari</p>
      <p>The conclusion that can be drawn from the knowledge ous device modules. Despite all the protections, the best
of Facebook’s way of doing business on the virtual reality way for the user not to share his data with companies
project is as impressive as it is worrying. So far, no tech- is to neither create nor access diferent social networks.
nology has been invasive at the level of virtual reality, In the modern age, every user has the right whether he
and in a way it represents a benchmark, and on the other wants to access the network or not, and thus bear all the
hand, a kind of pinnacle in the creation of technology consequences of his decisions.
for monitoring and collecting user activity and data that Bearing in mind the facts presented, it is necessary to
was not possible before. Virtual reality is still a relatively educate users, familiarize them with the ways in which
young technology. The consequences of its existence will potentially dangerous data about them is collected, and
not be fully known for some time, but if previous events point them to some of the solutions that will protect their
and the experiences of early adopter users are preludes to privacy while using the Internet. On the other hand, it
future developments and potential problems, attacks on is necessary to put pressure on the legislators to make
user privacy will be increasingly aggressive and invasive. the business rules of companies based on the collection
and processing of user data, by tightening the penalties
and sanctions in cases of "data leakage" or unauthorized
5. Conclusion access to user data.</p>
      <p>The value of user data and information on the market
shows a growing tendency, and therefore the need to
collect an increasing number of them. Through its many
years of work, Facebook has developed mechanisms and
methods that have brought the company to a convincing
leadership position in terms of the value and amount
of collected data. The company followed technological
trends and marketed its platform on almost all possible
devices that support the functionalities necessary for the
correct operation of the network.</p>
      <p>Historically, Facebook was initially designed as a
platform for desktop computers, then the focus was on smart
devices, while in the last few years the priority has shifted
to virtual reality technology. Facebook’s presence on a
wide range of diferent platforms enables the collection
of over 4 petabytes of data on a daily basis. User data</p>
    </sec>
    <sec id="sec-3">
      <title>Acknowledgment</title>
      <sec id="sec-3-1">
        <title>This work is supported by the Ministry of Education, Science and Technological Development of the Republic of Serbia [projects TR32025, TR32048].</title>
        <p>[3] T. Aichner, M. Grünfelder, O. Maurer, D. Jegeni,
Twenty-five years of social media: a review of social
media applications and definitions from 1994 to 2019,
Cyberpsychology, behavior, and social networking
24 (2021) 215–222.
[4] Facebook, Manage Your Privacy, 2022. URL:
https://www.facebook.com/about/basics/
manage-your-privacy/.
[5] Facebook Help, Cookies on Facebook,
2022. URL: https://www.facebook.com/help/
336858938174917/.
[6] S. P. Singh, 32 Types of User Data Facebook
Collects; This is How You Can See Yours, 2021.</p>
        <p>URL: https://gadgetstouse.com/blog/2021/01/20/
32-types-of-data-facebook-collects-this-is-how-you-can-see-yours/.
[7] E. Dick, Balancing user privacy and innovation in
augmented and virtual reality, Technical Report,
Information Technology and Innovation Foundation,
2021.
[8] J. P. Calbalhin, Facebook user’s data security and
awareness: A literature review, Journal of Academic
Research 3 (2018) 1–13.</p>
      </sec>
    </sec>
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