Security Tokens: Everything You Need to Know

August 18, 2025

The Internet of Value is revolutionizing many areas of our lives. Specifically, it is bringing about a radical transformation in the traditional financial sector.

In today's session, we'll be discussing "Security Tokens," a key component of Web 3.0 that enables the optimization of a wide range of financial assets thanks to the blockchain ecosystem.

In this case, technology allows us to enhance these assets in certain ways, such as by increasing their liquidity, availability, and flexibility. In other words, the assets themselves do not improve, but their management is simplified, providing many benefits to all stakeholders, including investors.

However, the issuance and sale of these security tokens is not merely a technological issue, as regulators have classified them as traditional financial assets in an effort to protect retail investors (and to share in the benefits of this new landscape).

Next, we’ll take a look at exactly what security tokens are, the benefits of using them, and the regulatory requirements that apply to them.

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What are security tokens?

A security token is a cryptoasset hosted on a blockchain network that represents a traditional financial asset (bonds, futures, debt, company stock, gold, etc.). But what does this mean?

Security

To understand what security tokens are, we must first understand the traditional concept of “security.” This term refers to financial assets or securities. They are, therefore, investment instruments. They are represented by legal documents that confirm the holder’s ownership rights or the issuance of a loan.

A security is any promissory note, stock, futures contract, bond, debt instrument, certificate of interest, or any other financial instrument.

There are various types of securities: debt securities, equity securities, hybrid securities, derivative securities, etc.

Whether an asset or instrument is considered a “security” depends on the jurisdiction, as there are no clearly defined criteria. It is often difficult to clearly determine whether something is a security or not, which requires a legal analysis. However, it is important to be able to determine this, as securities markets are strictly regulated. To do so, the Howey Test is generally used, which we will examine in detail in the following section.

Security Token

A security token is a type of digital asset that represents a traditional security on a blockchain network. Essentially, a security token is a tokenized security. Tokenization, in this context, involves digitally representing a value or a right—such as a right of ownership, usufruct, use, or ownership interest in a company—through a token on a blockchain network. This process allows these assets to be easily stored, transferred, exchanged, and even used as collateral via the blockchain, facilitating access to markets that operate on a peer-to-peer (P2P) model and eliminating the need for intermediaries.

Features and Benefits of Security Tokens

  1. Decentralization and Security:
    • Because they are blockchain-based, security tokens leverage blockchain technology to offer greater security, transparency, and resistance to censorship. Decentralization ensures that transactions are immutable and verifiable by multiple nodes on the network.
  2. Interoperability and Efficiency:
    • Security tokens can interact with other tokens and systems on different blockchains, promoting greater interoperability. This facilitates integration with other financial platforms and reduces the costs and time associated with traditional intermediation.
  3. Global Access and Liquidity:
    • Tokenization allows investors to access global markets without the geographical barriers that traditionally limit investment in financial assets. In addition, the liquidity of security tokens can improve significantly, as they can be easily traded on digital trading platforms and specialized exchanges.
  4. Cost Reduction and Streamlined Processes:
    • By eliminating the need for intermediaries such as banks, brokers, and registrars, security tokens significantly reduce operating costs and fees. In addition, they simplify the processes of issuing and managing securities, making transactions faster and less prone to errors.
  5. Regulatory Compliance and Transparency:
    • Security tokens can incorporate compliance and identity verification mechanisms directly into their smart contracts, facilitating regulatory compliance and increasing transparency. This is crucial for complying with financial regulations and protecting investors.

Applications and Uses of Security Tokens

  1. Tokenization of Traditional Assets:
    • They can represent physical assets such as real estate, art, and other tangible assets. This opens up new investment opportunities, allowing investors to purchase fractional shares of these assets and diversify their portfolios with less capital.
  2. Shares and Equity Interests in Companies:
    • Security tokens can represent shares and equity interests in companies, making it easier to issue and trade securities more efficiently. This democratizes access to investments in private companies and startups, allowing for greater participation by retail investors.
  3. Bonds and Debt:
    • They can tokenize bonds and other debt instruments, making it easier to issue, manage, and trade them. This can also include issuing public and private debt with clearer and more efficient terms.
  4. Investment Funds and Real Estate Funds:
    • The tokenization of investment funds and real estate funds allows investors to access these vehicles with less capital and greater liquidity, diversifying their investments without the traditional restrictions.
  5. Smart Contracts and Automation:
    • Security tokens use smart contracts to automate processes such as dividend payments, interest payments, and profit distribution. This reduces the need for human intervention and increases the efficiency and accuracy of transactions.

Challenges and Considerations

  1. Regulation and Compliance:
    • Although tokenization offers many advantages, it also presents significant regulatory challenges. Legal frameworks and regulations surrounding security tokens are still evolving in many jurisdictions, which can create uncertainty for investors and issuers.
  2. Adoption and Education:
    • The adoption of security tokens requires a deep understanding of both blockchain technology and traditional financial markets. Educating and training market participants is essential to overcoming barriers to entry and fostering widespread adoption.
  3. Security and Scalability:
    • Blockchain security is essential, but the scalability of blockchain networks remains a challenge. Scalability solutions, such as sidechains and Layer 2 solutions, are being developed to improve the capacity and speed of security token transactions.
  4. Cross-Platform Interoperability:
    • Interoperability between different blockchains and trading platforms is crucial for the liquidity and functionality of security tokens. Standards and protocols are being developed to improve interoperability and facilitate the integration of different systems.

The Future of Security Tokens

The future of security tokens looks promising, with growing interest and development in the blockchain and decentralized finance (DeFi) space. More countries and regulators are expected to adopt clear, supportive legal frameworks for security tokens, promoting their growth and expansion in the global market. Technological advancements and collaboration between players in the financial and technology sectors will continue to drive innovation and the adoption of this new class of digital assets.

How can you tell if a security token is a security? (Howey Test)

To determine whether a particular cryptoasset meets the requirements to be classified as a financial instrument (security token), the so-called “Howey Test” must be applied.

It can be applied to any contract, plan, or transaction, whether in the traditional financial sector or the crypto space.

According to this test, an investment contract exists provided that the following requirements are met:

  • There is an investment of money in a joint venture.
  • There is an expectation of financial return.
  • The results will be the product of others' efforts.

If the answer to all three questions is yes, we can confidently conclude that the token or cryptoasset in question is a security token.

Regulation of security tokens (Spain and the U.S.)

In Spain, security tokens are considered financial instruments under Article 2 of the Consolidated Text of the Securities Market Law, and their initial issuances (primary market) are regulated by Articles 33 et seq. of that law, in addition to complying with European directives and regulations.

In Europe, the MiCA Regulation governs all types of non-financial crypto-assets, which will not be subject to securities market law. It allows for the issuance of a license covering the entire EU market.

For the regulation of financial instruments (security tokens), we must refer to the recent Regulation (EU) 2022/858 on a pilot scheme for market infrastructures based on distributed ledger technology and amending Regulations (EU) No 600/2014 and (EU) No. 909/2014 and Directive 2014/65/EU (MiFID II).

Regulation (EU) 2022/858 will allow the tokenization of the following as of March 23, 2023:

-Shares of small-cap companies (issuers with a market capitalization of less than 500 million euros).

-Bonds and other forms of debt.

-Shares in collective investment schemes (assets under management exceeding 500 million euros).

It will therefore be possible to tokenize financial instruments and organize markets around them.

However, the tokenization of real property rights is not covered, as these rights are recorded in the property registry, and any modification requires a notarized deed and registration in the registry itself.

In order to tokenize real property rights, the relevant regulations (specifically the mortgage law) would first need to be amended.

Finally, we would like to highlight the eIDAS II Regulation, which aims to establish a digital identity for all EU citizens. Since the registry is stored on a distributed blockchain and is considered tamper-proof, it can be used as admissible evidence in court.

However, it is currently only a draft, and the regulation currently in force is the original eIDAS, Regulation (EU) No 910/2014.

In the United States, security tokens are regulated by the Securities and Exchange Commission (SEC) and must comply with the provisions of the Securities Act of 1933, just like any other security.

Now that we understand the legal framework that must be taken into account when working with security tokens, let’s examine the advantages of using them.

Benefits of security tokens

Technological advantages:

  • Programming: Process automation tailored to business operations, for both investors and issuers (automated dividend distribution, token-based governance, investment capital management, collateralization, etc.)
  • Regulation: Regulation can be managed automatically using smart contracts, allowing for the management of token rights or permissions.
  • Liquidity: 24/7/365 access to global markets.
  • Fractional ownership: Providing even greater liquidity for investors and issuers (stocks, bonds, commercial paper, funds, real estate interests, and other instruments).
  • Transparency and immutability: This not only facilitates audits and processes for regulators but also provides investors with complete transparency.
  • Efficiency: It eliminates friction and intermediaries through process automation and the trust built between the parties.

Advantages of the Internet of Value ecosystem:

  • Wallets: The ability to establish ownership and transfer it in a standardized manner as an integration mechanism. There is no need to build the entire infrastructure from scratch; instead, existing infrastructure is utilized.
  • Custodians: A technological infrastructure for the custody of cryptoassets that can be easily adapted for security tokens.
  • Stablecoins. Availability of assets representing 1:1 fiat values for payments or collections on security tokens.
  • Other crypto assets. Integration with other forms of value on the blockchain, enabling more complex, high-value financial integrations.
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Advantages over the decentralization of traditional assets:

Decentralization is a concept that cannot be defined simply in absolute terms; rather, it exists on a spectrum. In the context of security tokens, although these are not fully decentralized (since there is typically a sponsor or issuer responsible for the asset and subject to regulatory obligations), they do offer a higher degree of decentralization than their traditional counterparts thanks to the use of the blockchain ecosystem.

Key Points on Decentralization

  1. Cutting Out the Middleman:
    • One of the key advantages of security tokens is their ability to eliminate intermediaries. Through blockchain technology, investors can hold their securities directly without the need for third parties such as banks or custodians.
  2. Instant Proof of Ownership:
    • Security tokens enable immediate and transparent proof of ownership. Every transaction and transfer of tokens is recorded on the blockchain, providing complete and verifiable traceability.
  3. Direct Transfers:
    • The ability to transfer security tokens without the involvement of direct intermediaries is a significant advantage. Holders can transfer tokens via the blockchain securely and quickly, without having to go through traditional intermediaries.
  4. Receipt of Direct Payments:
    • Distribution payments, such as dividends or interest, can be made directly to token holders' wallets. This not only streamlines the process but also reduces the costs and time associated with financial intermediaries.

Interdependence Between Physical and Digital Assets

When a physical asset is represented by a digital asset, a relationship is established between the physical asset, an intermediary, and the digital asset. This relationship is often unavoidable, as someone must maintain the link between the two types of assets to ensure that the purpose of the security token is fulfilled.

For example, consider a security token that represents an economic interest in a real estate project. For this security token to generate returns for its holders, the underlying real estate project must be managed efficiently. This management involves a series of operational and administrative tasks that depend on an "intermediary" or project manager.

Physical and Digital Asset Management

  1. Operations Management:
    • Physical asset management, such as in the case of a real estate project, involves overseeing construction, maintenance, day-to-day operations, and financial management. The success of these tasks is crucial to ensuring that the project generates the expected returns.
  2. Legal and Contractual Relationship:
    • The legal relationship between the security token and the underlying asset must be clearly defined. This includes contracts that set forth the rights and obligations of token holders and the issuer or project manager.
  3. Audits and Compliance:
    • To maintain trust and transparency, it is essential to conduct regular audits of the project and the tokenization system. These audits ensure that funds are used appropriately and that the project’s performance is reported accurately.

Benefits for Investors

Despite the need for an intermediary to manage the physical asset, security token holders enjoy several advantages in terms of decentralization:

  1. Free Trade:
    • Tokens can be traded on secondary markets without restrictions, providing investors with liquidity that is not available with many traditional assets.
  2. Personal Custody:
    • Investors can store their tokens in their own digital wallets, eliminating the need to rely on third parties for the security of their assets.
  3. Access to Global Markets:
    • Tokenization opens the door to a global investor base, enabling greater geographic diversification and potentially increasing the demand for and value of tokens.
  4. Transparency and Traceability:
    • All transactions are recorded on the blockchain, providing a complete and transparent history that can be verified by any participant in the network.

Challenges and Opportunities

  1. Regulation:
    • Although security tokens offer numerous advantages, they must comply with applicable financial regulations. Regulations vary by jurisdiction, and compliance is essential for legitimacy and long-term sustainability.
  2. Investor Education:
    • Understanding blockchain technology and security tokens is crucial for investors. Proper education and outreach are necessary to foster trust and adoption.
  3. Technological Innovation:
    • The ongoing evolution of blockchain technology offers opportunities to improve the efficiency and functionality of security tokens. This includes the development of new solutions for scalability, interoperability, and security.

In summary, while security tokens do not completely eliminate the need for intermediaries, they offer a significant degree of decentralization that improves the efficiency, transparency, and accessibility of financial markets. The tokenization of physical assets presents challenges, but it also opens up new opportunities for investors and issuers in an increasingly interconnected and digitized global market.

Practical use cases for security tokens

Thanks to the advantages outlined above, some players are taking advantage of this opportunity to create new business models based on this technology and the issuance of security tokens.

One of the most interesting examples of how to enhance a traditional asset can be found in the real estate sector. This sector, which has traditionally been a solid and profitable investment, faced a number of limitations that this technology specifically addresses.

The flexibility in managing the asset, transparency in the investment process, increased liquidity, and democratized access to investment... are some of the key factors that are giving rise to some very interesting use cases.

A clear example is Domoblock, a high-end real estate investment firm that issues debt security tokens backed by real estate assets.

This means that anyone can invest in real estate passively with as little as 200 euros and liquidate their investment at any time by selling their stake on a secondary market.

Conclusion

The blockchain ecosystem adds value to digital asset management by standardizing mechanisms and user experiences.

The fact that holdings in a financial asset (such as a stock or a fund share) can be represented as a token on the blockchain means that we can leverage the entire surrounding infrastructure, thereby benefiting the asset.

For all of this to be possible, security tokens must operate in a standardized manner; and to achieve this, regulations must provide for the creation of a technological infrastructure that enables the realization of all the benefits mentioned in this article.

In short, and to quoteSergio Navarro, CEO of Domoblock: "The tokenization of real estate assets makes it possible to convert any type of asset into a 'financial instrument,' potentially transforming it into a medium of exchange that is easily tradable and convertible."

Do we realize what this means?

We look forward to reading your comments.

By Jorge Infante Fernandez.

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Sergio Navarro

Expert in blockchain, investments, and personal finance.

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