Tor Browser: How It Works and Its Connection to the Dark Web

Personal data breaches have become one of the most concerning issues in Indonesia, with numerous cases emerging in recent years. While technology offers many benefits, it can also facilitate cybercrime, including the leakage of personal data. One technology often associated with such activities is the Tor Browser, which allows users to browse the internet anonymously and access hidden parts of the online world known as the dark web. Understanding how the Tor Browser works and its connection to the dark web is an important step in raising awareness of cyber threats and protecting personal data.

What Is Tor Browser?

Tor Browser is software designed to maintain user anonymity while browsing the internet. The name “Tor” stands for The Onion Router, which reflects how it works—by routing user data through multiple layers of encrypted servers called “nodes” or “relays.” This method helps keep the user’s identity and location hidden, making it extremely difficult for third parties, including hackers or government surveillance, to track online activity. Because of this functionality, Tor Browser is often used by activists, journalists, and individuals who want to protect their privacy online.

Tor was originally developed in the mid-1990s by the U.S. Naval Research Laboratory as a project to secure government communications. Its initial purpose was to provide a safe and anonymous communication channel for military personnel and intelligence agents in the field. Over time, Tor evolved into open-source software accessible to the public. In 2006, The Tor Project was established to further support and develop this technology.

However, beyond its legitimate uses, Tor Browser is often associated with activities on the dark web, a hidden part of the internet that is not indexed by standard search engines. According to reports from Tempo, the dark web is frequently used for illegal activities, such as the trade of personal data, narcotics, and even weapons. This association makes Tor Browser a controversial tool, despite its undeniable benefits in protecting user privacy.

Read: How to Address Corporate Data Breaches Circulating on the Dark Web

How Tor Browser Works

Tor Browser operates based on the principle of Onion Routing, a data transmission method that uses multiple layers of encryption to protect user privacy. The term “onion” reflects this structure, where user data is wrapped in layers of encryption, similar to the layers of an onion. These layers ensure that each point along the transmission path only knows the information necessary for the next step, without ever knowing the complete route or the identity of the sender.

Basic Principle: Onion Routing

When you access the internet through Tor Browser, your data is not sent directly from your device to the destination website. Instead, it is routed through a series of volunteer-operated servers called nodes or relays. Each piece of data you send is encrypted in multiple layers before leaving your device. Each layer can only be decrypted by the corresponding node in the route, ensuring that no single node has complete access to your information. Only the exit node—the final node in the route—can see the data in its final form before it is forwarded to the destination website.

Connection Process to the Tor Network

To understand how Tor Browser works, it is important to know how data moves through the Tor network. This process involves several stages that ensure user privacy and anonymity. Tor uses a layered routing system with multiple interconnected nodes to encrypt and distribute data. Below are the steps of how a connection is established through the Tor network:

1. User Initiates the Connection
   When a user opens Tor Browser, the device first connects to an entry node. The entry node is the starting point that knows your real IP address but does not know which website you are trying to access.
2. Transmission Through Middle Nodes
   From the entry node, your data is forwarded to one or more middle nodes. These nodes pass the data along to the next stage without knowing the original source or the final destination.
3. Exit Node to the Destination Website
   The data is then sent to the exit node, which is the final node that connects you to the destination website. At this point, the last layer of encryption is removed, allowing the destination site to receive your request. However, the exit node does not have access to information about the original source of the data, ensuring that your identity remains anonymous.

Advantages of Tor in Maintaining Privacy and Anonymity

• Anonymity: Through onion routing, Tor hides your real IP address, making your identity difficult to trace.
• Data Privacy: Encrypted data ensures that no single node can access your complete information.
• Unrestricted Access: Tor allows users to access websites that may be blocked or censored in certain regions.
• Additional Security: Even if one node in the network is compromised, the layered encryption continues to protect the confidentiality of the data.

Tor Browser provides a solution for those who require a higher level of privacy on the internet. However, it is important to understand that although Tor offers anonymity, user activity can still be monitored at the exit node if additional security measures—such as using a VPN or extra encryption—are not applied.

Simple Illustration

Imagine you want to send a package to a specific destination. Instead of sending it directly, you wrap the package in three different layers of boxes. The first box is given to courier A, who only knows that it must be delivered to courier B. Courier B then opens the first box and finds a second box with instructions to send it to courier C. Courier C opens the final box and ultimately delivers the package to its destination. In this way, each courier only knows their specific step, without knowing the original sender or the full contents of the package.

The Relationship Between Tor Browser and the Dark Web

The dark web is a part of the deep web, which refers to areas of the internet that cannot be accessed through standard search engines like Google or Bing. While the deep web includes many legitimate resources—such as academic databases or internal company portals—the dark web is a more hidden segment, often used for anonymous and hard-to-trace activities. The Tor Browser is one of the primary tools that enables users to explore the dark web, thanks to its strong anonymity features.

Tor Browser is designed to provide privacy and anonymity by encrypting and masking users’ internet activity. This capability makes it a preferred tool for those who want to access the dark web. Most dark web websites use the .onion domain, which can only be accessed through Tor Browser. Additionally, because the Tor network hides users’ IP addresses, it becomes difficult for authorities or surveillance entities to trace a user’s identity or location. Below are some activities on the dark web that involve the use of Tor Browser:

Sale of Leaked Personal Data

One of the most common activities on the dark web is the trade of personal data. Information such as identification numbers, social media accounts, login credentials, and credit card details obtained from data breaches are often sold on black markets within the dark web. In Indonesia, cases involving the sale of customer data—from telecommunications services to health application users—have surfaced in recent years. Reports indicate that the price for 1,000 leaked personal data records can range from tens to hundreds of dollars, depending on their sensitivity.

Black Market Activities

The dark web is also a hub for illegal transactions involving goods and services such as drugs, weapons, hacking tools, and forged documents. Tor Browser enables perpetrators to operate with reduced risk of detection by authorities. One well-known example is the dark web marketplace called Silk Road, which used Tor and cryptocurrencies like Bitcoin to conceal the identities of buyers and sellers.

Cybercrime Forums and Illegal Services

Beyond marketplaces, the dark web also hosts communities that share hacking techniques, malware, and tools for launching cyberattacks. Many of these discussions take place in closed environments, making Tor Browser a critical tool for accessing such forums.

Statistics and Case Examples in Indonesia

Indonesia is not an exception to this phenomenon. In recent years, large-scale data breaches involving both government institutions and private companies have been found being sold on the dark web. For example:

• In 2021, personal data belonging to more than 270 million Indonesian citizens, including information from BPJS Kesehatan, was reportedly leaked and sold on the dark web for 0.15 Bitcoin.
• In 2022, a forum on the dark web claimed to possess user data from popular applications in Indonesia and offered it for sale to interested buyers.

These statistics highlight how the dark web has become an ecosystem that treats leaked data as a commodity. While Tor Browser has many legitimate uses, it is also frequently exploited by cybercriminals to access and trade stolen data.

The Impact of Tor Browser Usage in Indonesia

Tor Browser has become increasingly well-known among various groups in Indonesia, especially as awareness of digital privacy continues to grow. As software that offers anonymity and freedom on the internet, Tor presents a complex impact—both positive and negative. Below is a more detailed overview of the impact of Tor Browser usage in Indonesia:

Positive Impacts:

1. Anonymity for Activists and Journalists
For activists and journalists, especially those dealing with sensitive issues, Tor Browser is an essential tool. With the anonymity it provides, they can communicate, share information, or access resources without fear of being tracked or monitored. For example, journalists covering corruption cases or activists advocating for human rights often use Tor to protect themselves from threats posed by governments or certain groups.

2. A Tool to Bypass Internet Censorship
In countries or regions that enforce internet censorship, Tor Browser allows users to access blocked content. In Indonesia, although the government rarely imposes widespread internet censorship, certain websites or services have been blocked for security or regulatory reasons. In such situations, Tor Browser becomes a solution for those who want to access information that is otherwise unavailable on standard networks.

Negative Impacts:

1. Misuse for Illegal Activities
Tor Browser’s ability to hide user identity is often exploited by cybercriminals. In Indonesia, the dark web—accessed through Tor—is frequently used as a marketplace for trading personal data obtained from data breaches. In addition, black markets for illegal goods, malicious software, and hacking services are becoming more prevalent. This phenomenon creates serious challenges in maintaining digital security.

2. Challenges for Law Enforcement in Tracking Cybercrime
Tor Browser makes online activity extremely difficult to trace, posing a major challenge for law enforcement. In Indonesia, institutions such as Badan Siber dan Sandi Negara (BSSN) and cyber police units often face difficulties in investigating crimes involving Tor. For example, when user data is sold on the dark web, tracing the perpetrators requires significant resources and advanced technical expertise, compounded by the anonymity that serves as a major barrier.

The use of Tor Browser in Indonesia brings mixed impacts, depending on who uses it and for what purpose. For some, Tor is a tool to protect privacy and freedom on the internet. However, for others, the anonymity it provides can be used to conceal illegal activities. Therefore, better understanding and risk management are necessary to ensure that technologies like Tor are used wisely and responsibly.

The Role of the Dark Web in the Personal Data Breach Crisis

The dark web has become one of the primary places where personal data from Indonesia is traded, including sensitive information such as identification numbers, addresses, and financial details. Cybercriminals often use Tor Browser to access the dark web due to its ability to conceal IP addresses and identities, making tracking significantly more difficult. Their modus operandi typically involves cyberattacks such as phishing, exploitation of vulnerabilities, or even insider collusion to steal data, which is then sold on black markets at certain prices.

Weak data governance in Indonesia is one of the main factors contributing to the rise of such activities. Many organizations have yet to implement adequate security measures, such as encryption or regular audits, making them easy targets for cyberattacks. A lack of awareness and effective regulation further exacerbates the situation, turning data breaches into an increasingly serious threat. Strengthening data security measures and improving cybersecurity awareness are urgently needed to mitigate the impact of this crisis.

Efforts to Address Data Breaches Involving Tor Browser and the Dark Web

The data breach crisis involving Tor Browser and the dark web requires a comprehensive and collaborative approach. With the increasing level of activity on the dark web, all stakeholders—from governments and organizations to the general public—need to take proactive steps to minimize its impact. Below are several actions that can be taken:

1. Strengthening Data Security
   Organizations need to adopt security measures such as data encryption and multi-factor authentication (MFA) to protect data from unauthorized access. Regularly updated and continuously monitored systems are also essential to reduce vulnerabilities to cyberattacks.
2. Enhancing Law Enforcement Capabilities
   Dark web analysis technologies can help law enforcement agencies track illegal activities and cybercriminals who exploit the Tor network. In addition, international cooperation is crucial given the cross-border nature of cybercrime involving the dark web.
3. Public Awareness and Education
   Raising public awareness about the importance of protecting online privacy—such as avoiding careless sharing of personal data—can be a first step in reducing the risk of data breaches. This can be achieved through public campaigns and training programs.
4. Stronger Regulations
   The enforcement of personal data protection laws must be strengthened to ensure that companies and organizations comply with strict data governance standards. Regular audits should also be conducted to identify and fix weaknesses in data security systems.

With strong collaboration between governments, organizations, and society, data breaches involving Tor Browser and the dark web can be minimized. These efforts not only protect personal data but also help build a safer and more trustworthy digital ecosystem.

Read: The Dark Web and Stolen Data: How Do These Black Markets Operate?

Conclusion

Tor Browser is an anonymity tool that offers significant benefits for user privacy, but it also creates opportunities for misuse, particularly in illegal activities on the dark web. The data breach crisis highlights the need to increase public awareness of the risks associated with the dark web and the importance of protecting personal data.

To address these challenges, a strong synergy between advanced technology, strict regulations such as personal data protection laws, and comprehensive education is essential. These efforts are crucial to safeguarding the personal data of Indonesian citizens and building a safer digital ecosystem.