Digital footprint or digital shadow refers to one's unique set of traceable digital activities, actions, contributions, and communications manifested on the Internet or . Digital footprints can be classified as either passive or active. Passive footprints consist of a user's web-browsing activity and information stored as HTTP cookie. Active footprints are intentionally created by users to share information on websites or social media. While the term usually applies to a person, a digital footprint can also refer to a business, organization or corporation.
The use of a digital footprint has both positive and negative consequences. On one side, it is the subject of many privacy issues. For example, without an individual's authorization, strangers can piece together information about that individual by only using . Social inequalities are exacerbated by the limited access afforded to marginalized communities. Corporations are also able to produce customized ads based on browsing history. On the other hand, others can reap the benefits by profiting off their digital footprint as social media . Furthermore, employers use a candidate's digital footprint for online vetting. Between two equal candidates, a candidate with a positive digital footprint may have an advantage. As technology usage becomes more widespread, even children generate larger digital footprints with potential positive and negative consequences such as college admissions. Media and information literacy frameworks and educational efforts promote awareness of digital footprints as part of a citizen's digital privacy. Because digital footprints are difficult to avoid, scholars and policymakers increasingly emphasize the importance of understanding how online behavior can shape public perception and opportunities.
Active digital footprints are deliberate, as they are posted or shared information willingly. They can also be stored in a variety of ways depending on the situation. A digital footprint can be stored when a user logon into a site and makes a blog post or change; the registered name is connected to the edit in an online environment. Examples of active digital footprints include social media posts, video or image uploads, or changes to various websites.
Interested parties use Internet footprints for several reasons; including cyber-vetting, where interviewers could research applicants based on their online activities. Internet footprints are also used by law enforcement agencies to provide information unavailable otherwise due to a lack of probable cause. Also, digital footprints are used by marketers to find what products a user is interested in or to inspire ones' interest in a particular product based on similar interests.
Social networking systems may record the activities of individuals, with data becoming a Lifestreaming. Such social media usage and roaming services allow digital tracing data to include individual interests, social groups, behaviors, and location. Such data is gathered from sensors within devices and collected and analyzed without user awareness. When many users choose to share personal information about themselves through social media platforms, including places they visited, timelines and their connections, they are unaware of the privacy setting choices and the security consequences associated with them.Ball, Albert; Ranim, Michelle; Levy, Yair (January 1, 2015). Examining users' personal information sharing awareness, habits, and practices in social networking sites and e-learning systems. Online Journal of Applied Knowledge Management. pp185 Many social media sites, like Facebook, collect an extensive amount of information that can be used to piece together a user's personality. Information gathered from social media, such as the number of friends a user has, can predict whether or not the user has an introvert or extrovert personality. Moreover, a survey of SNS users revealed that 87% identified their work or education level, 84% identified their full date of birth, 78% identified their location, and 23% listed their phone numbers.
While one's digital footprint may infer personal information, such as demographic traits, sexual orientation, race, religious and political views, personality, or intelligence without individuals' knowledge, it also exposes individuals' private psychological spheres into the social sphere. Lifelogging is an example of an indiscriminate collection of information concerning an individual's life and behavior. There are actions to take to make a digital footprint challenging to track. An example of the usage or interpretation of data trails is through Facebook-influenced creditworthiness ratings, the judicial investigations around German sociologist Andrej Holm, advertisement-junk mails by the American company OfficeMax or the border incident of Canadian citizen Ellen Richardson.
In some professions, maintaining a digital footprint is essential. People will search the internet for specific doctors and their reviews. Half of the search results for a particular physician link to third-party rating websites. For this reason, prospective patients may unknowingly choose their physicians based on their digital footprint in addition to online reviews. Furthermore, a generation relies on social media for livelihood as influencers by using their digital footprint. These influencers have dedicated fan bases that may be eager to follow recommendations. As a result, marketers pay influencers to promote their products among their followers, since this medium may yield better returns than traditional advertising. Consequently, one's career may be reliant on their digital footprint.
An example of digital inequality is access to essential e-government services. In the United Kingdom, individuals lacking a sufficient digital footprint face challenges in verify their identities. This creates new barriers to services such as public housing and Health care, producing a form of “double disadvantage”. A double disadvantage compounds existing issues in digital access by excluded from digital life lack both access and the digital reputation required to navigate public systems. Other communities with private access or open access to technology and digital education from an early age will have greater access to government e-services.
The United Nations International Children's Emergency Fund's (UNICEF) State of the World's Children 2017 report highlights how digital footprints are linked to broader issues of equity, inclusion, and safety, emphasizing that marginalized communities experience greater risks in digital environments.
Scholars suggest that digital footprint literacy falls under privacy literacy, which refers to the ability to critically manage and protect personal information in online environments. Studies indicate that disparities in MIL access across countries and socio-demographic groups contribute to uneven abilities to manage digital footprints safely.
In response to these gaps, researchers in 2022 developed the "5Ds of Privacy Literacy" educational framework, which emphasizes teaching students to "define, describe, discern, determine, and decide" appropriate information flows based on context. Grounded in sociocultural learning theory, the 5Ds encourage students to make privacy decisions thoughtfully, rather than simply adhering to universal rules. Sociocultural learning theory means that students learn privacy skills not just by memorizing rules, but by actively engaging with real-world social situations, discussing them with others, and practicing decisions in authentic, contextualized settings.
This framework highlights that part of digital footprint literacy includes awareness about how people's behaviors are tracked online. Companies can infer demographic attributes such as age, gender, and political orientation without explicit disclosure. This is often done without users' awareness. Educating students about these practices aims to promote critical thinking about personal data trails.
Another part of digital footprint literacy is being able to critically assess one's own digital footprint. Initiatives like Australia's "Best Footprint Forward" program have implemented digital footprint education using real-world examples to teach critical self-assessment of online presence. Similarly, the Connecticut State Department of Education recommends incorporating Digital citizen, internet safety, and media literacy into K–12 education standards.
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