Nigeria’s accelerating digital transformation is creating new opportunities for growth but also opening the door to a fast-expanding wave of cyber threats that are evolving in both scale and sophistication.

According to the Deloitte Cybersecurity Outlook 2026, cybercrime and online fraud are rising in parallel with economic expansion and digital adoption across the country. The report, released in January, highlights a growing global pattern in which increased connectivity directly correlates with increased exposure to cyberattacks.

This warning gained renewed urgency this week after the Central Bank of Nigeria (CBN) issued a public alert over fraudulent messages and coordinated phishing attempts targeting the regulator, commercial banks, and other financial institutions. The alert underscores a widening attack surface that now includes even the most secure government and financial systems.

Speaking on the development, Tope Aladenusi, Africa Cybersecurity Leader at Deloitte, described the situation as a natural but dangerous consequence of rapid digitalisation.

“We are moving into a fully digital economy. Everything is now connected from banking to tax filing to business operations. That connectivity brings efficiency, but it also introduces a new level of risk,” he said.

Aladenusi explained that the rise in cyberattacks is not coincidental but structurally linked to how modern economies now function. As financial transactions, government services, and business operations increasingly migrate online, cybercriminals are following the same path, exploiting vulnerabilities in systems that were often not designed with security at their core.

“It is a new level, new devil scenario. Every technological advancement comes with associated risk. The more we digitise, the more exposed we become,” he said.

While economic growth often attracts investment and innovation, it also draws the attention of cybercriminal networks seeking financial gain, data access, or operational disruption.

Traditionally, financial institutions were the primary targets of cyberattacks due to their direct access to funds. However, the landscape has shifted dramatically. Today, attackers are no longer focused solely on stealing money; they are increasingly engaged in data extortion and system hijacking, a model that allows them to lock organisations out of their own infrastructure and demand ransom for restoration.

“In the past, attackers went after cash. Now they go after systems, data, and trust. They can shut down operations entirely and demand payment before restoring access,” Aladenusi explained.

This evolution has made virtually every sector vulnerable, from fintechs and telecoms to government agencies and regulatory bodies. Even the Central Bank of Nigeria recently warned that attackers were impersonating its officials, sending fraudulent messages designed to trick recipients into revealing sensitive credentials or clicking malicious links.

One of the most alarming aspects of modern cybercrime is its borderless nature. Once an organisation is connected to the internet, it becomes exposed to potential attacks from anywhere in the world.

“There are no boundaries online. An attack can come from anywhere whether China, Russia, Iran, or the United States. The internet is a global attack surface,” he said.

He added that attackers often operate strategically, targeting regions or institutions where systems are less secure or easier to penetrate. “If it takes five months to breach a system in one country but five days in another, attackers will always choose the easier target.”

Beyond visible cyberattacks lies a more hidden threat, the dark web ecosystem, where stolen data is traded and cybercrime services are exchanged. According to Aladenusi, government institutions and private organisations are already being listed on underground platforms where attackers sell access to compromised systems or sensitive information.

Cybersecurity experts warn that cybersecurity is no longer just a technical concern for IT departments. It has become a matter of national security and economic stability. In Nigeria, financial institutions, government agencies, fintech companies, and telecommunications operators collectively form critical national infrastructure. An attack on any of these sectors can trigger widespread disruption across the economy.

“When these systems are attacked, it is not just one company that suffers, it is the entire ecosystem,” Aladenusi said. “Trust in digital systems begins to break down, and that affects everything from payments to public services.”

Beyond immediate financial losses, cyberattacks carry long-term consequences including business downtime, reputational damage, regulatory penalties, investigation costs, and customer loss. In some cases, organisations are completely unable to operate until systems are restored.

“The cost goes far beyond the initial breach,” he noted.

A key challenge is that many digital systems were not originally designed with security as a foundational principle. “In the past, organisations built systems first and added security later,” Aladenusi said. “But modern cybersecurity requires security to be built into every layer from the start.”

With Nigeria heading toward the 2027 general elections, cybersecurity experts also warn of increased digital interference risks. Globally, elections have become prime targets for cyberattacks ranging from misinformation campaigns to system disruptions and politically motivated hacking.

“These attacks are not always about money. Sometimes they are about influence shaping narratives, supporting candidates, or undermining institutions,” he said.

Adding to the challenge is a global shortage of cybersecurity professionals. Millions of cybersecurity roles remain unfilled worldwide, leaving organisations exposed at a time of rising threats. Nigeria is also affected, as many skilled professionals migrate abroad in search of better opportunities.

“Security is not just about technology it is about people, process, and governance,” he said.

While Nigeria has made progress in cybersecurity regulation, experts argue that enforcement and coordination remain critical gaps. The next phase must move beyond policy frameworks to active implementation, ensuring breaches are reported, accountability is enforced, and institutions work more closely together.

As digital adoption continues to accelerate, one reality is becoming increasingly clear: cybersecurity is no longer optional. It is now the foundation of economic survival in a connected world.