Trust has been essential since the dawn of commerce. In the era of direct barter, trust in the quality of the product and the integrity of the merchant was necessary. With the creation of currency, it became even more critical to trust not only the parties involved but also the value of the medium of exchange itself, which led to formal coinage. Later, the increase in transaction volume demanded more efficient representations of capital, giving rise to paper money. With the evolution of the international banking system, fiat currency emerged, requiring even greater trust in the monetary system, since it no longer had direct and full convertibility into gold reserves. It is within this context of progressive dematerialization that the digital age has emerged, where services are increasingly disconnected from physical reality and linked to the virtual sphere, bringing with them a natural sense of mistrust.
Today, when all services are available on the internet, trust is even more imperative than in the past. Trust is required in the quality of products and services, in the reliability of merchants, and in the stability of the financial system itself. We must be certain that money deposited in the bank is safeguarded; we must prevent and avoid online scams; and it is also essential to trust that large technology platforms like Google handle data ethically and securely.
Thus, digital trust has become the cornerstone of modern financial services. Security no longer depends on safes, keys, or paper signatures, but rather on the strength of encryption, protection against cyberattacks, and the transparency of institutions. The global and nearly instantaneous mobility of capital is only possible thanks to this invisible foundation. Without this sense of security, the digital financial ecosystem itself collapses, as trust is the true currency that enables the continuity of transactions in the modern era.
The importance of this factor is clear in consumer behavior. According to the Marktest Basef Banca study (covering the four-month period ending in May 2011), the attribute "being trustworthy" was cited by Portuguese consumers as the most important aspect of a bank, receiving the preference of 21.7% of residents in mainland Portugal aged 15 or older. Clarity of information (21.1%) and quality of customer service (20.6%) followed closely behind. Other factors, such as financial stability (7.8%), loan interest rates (6.7%), efficiency (4.2%), and deposit interest rates (3.3%), recorded significantly lower percentages.
A historical analysis of this data reveals a significant structural shift: the quality of in-person customer service, which had been the clear leader since 2002, began to lose ground starting in 2007 and was overtaken in 2009. The expansion of digital channels, with online banking and digital banking at the forefront, largely explains the reduced importance placed on human interaction at the teller window. In contrast, perceptions of "trust" and "clear information" have skyrocketed. The year 2008 marked a decisive turning point in public opinion, in a clear reaction to the instability and loss of credibility caused by the global financial crisis of that period.
In recent decades, this phenomenon has not only taken hold but has also intensified exponentially. The transition to a fully digital environment, accelerated by the democratization of Artificial Intelligence (AI) and the emergence of concepts such as Open Banking, has brought new challenges. While AI enables the personalization of services and real-time fraud detection, it also exposes users to more sophisticated threats, such as hyper-realistic phishing, deepfakes, and automated social engineering.
In short, the history of commerce shows that the means of exchange are changing, but the need for trust remains unchanged. In the digital age, trust is no longer built on the physical grandeur of a bank branch, but rather on the efficient invisibility of cybersecurity and the ethics of data handling. In a world dominated by algorithms and artificial intelligence, the challenge for the financial services industry is to ensure that technological innovation never outpaces user security. After all, technology may be the engine of modern banking, but trust will continue to be, as it always has been, its fuel.