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The Top Vulnerabilities in IoT Devices: What Hackers Target and How to Defend Against Them

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The Internet of Things (IoT) has revolutionized the way we interact with technology, seamlessly integrating smart devices into our daily routines.
Introduction

The Internet of Things (IoT) has revolutionized the way we interact with technology, seamlessly integrating smart devices into our daily routines. From smart thermostats and wearable fitness trackers to home security cameras and voice assistants, IoT devices offer unparalleled convenience and connectivity. However, their rapid proliferation and extensive network connectivity also present significant security challenges. As more devices become interconnected, they create a broader attack surface for cybercriminals. This article aims to delve into the most common security vulnerabilities found in IoT devices, examining how these weaknesses can be exploited by hackers. Furthermore, it will provide practical strategies to defend against these risks, ensuring that your IoT ecosystem remains secure. Understanding these vulnerabilities and implementing effective defences is crucial for safeguarding personal and organizational data in an increasingly connected world.

 

What are IoT Devices?

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IoT devices are interconnected objects that communicate over the internet, allowing them to send and receive data to and from other devices. These devices range from everyday items like smart thermostats and security cameras to advanced wearable technology such as fitness trackers and smartwatches. By integrating sensors, software, and network connectivity, IoT devices enhance functionality and user convenience. For example, a smart thermostat adjusts home temperatures based on real-time data and user preferences, while a security camera offers remote monitoring capabilities for enhanced safety.

In modern life, IoT devices play a crucial role in both personal and professional settings. They streamline everyday tasks, improve efficiency, and provide valuable insights through data collection and analysis. In personal settings, IoT devices contribute to home automation, energy management, and health monitoring. Professionally, they facilitate enhanced operational efficiency, predictive maintenance, and smarter decision-making. The pervasive adoption of IoT technology is reshaping industries by offering innovative solutions and creating new opportunities for businesses and individuals alike. However, as their influence grows, addressing the associated security challenges becomes increasingly essential to ensure their benefits are fully realized without compromising safety.

 

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Common Vulnerabilities in IoT Devices

  • Weak or Default Passwords: Many IoT devices come with weak or default passwords, such as “admin” or “123456,” which are rarely changed by users. This vulnerability allows attackers to easily gain unauthorized access, compromising the device and potentially the entire network it is connected to. These default credentials are often publicly known and exploited in automated attacks, leading to breaches that can affect both personal and organizational security.
  • Lack of Encryption: Insufficient data encryption is another significant vulnerability in IoT devices. Without robust encryption, data transmitted between devices or from a device to the cloud can be intercepted and accessed by unauthorized parties. This lack of encryption exposes sensitive information, such as personal details or operational data, to tampering and theft, compromising user privacy and security.
  • Insecure Communication Protocols: Insecure communication protocols also pose a major risk. Many IoT devices use outdated or poorly secured protocols for data transmission, which can be intercepted by attackers. These unprotected communication channels allow cybercriminals to eavesdrop on or manipulate data, potentially leading to unauthorized control of the device or leakage of sensitive information.
  • Outdated Firmware and Software: Outdated firmware and software contribute to security vulnerabilities by leaving known flaws unpatched. Manufacturers may not regularly update their devices, leading to unaddressed security issues. This neglect creates opportunities for attackers to exploit these vulnerabilities, gaining control over the device or leveraging it as a gateway to other parts of the network.
  • Insecure Interfaces: Insecure web and mobile interfaces are another point of attack. Many IoT devices are controlled through apps or web interfaces that may lack proper security measures. Attackers can exploit weaknesses in these interfaces to gain unauthorized access, control the device, or disrupt its functionality. Poorly designed interfaces can thus serve as gateways for broader cyberattacks, undermining device security and user safety.

 

Exploitation of IoT Vulnerabilities

The exploitation of IoT vulnerabilities can have significant and far-reaching consequences. One major method attackers use is the creation of botnets, which are networks of compromised devices controlled remotely by cybercriminals. By exploiting vulnerabilities in IoT devices—such as weak passwords or outdated firmware—attackers can hijack these devices and enlist them into a botnet. Once in control, the botnet can be used to launch distributed denial-of-service (DDoS) attacks, overwhelming targeted websites or online services with traffic and causing them to become inaccessible (as shown in fig. 2). Such attacks can disrupt business operations, damage reputations, and incur substantial financial losses.

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Another critical risk is data theft and privacy breaches. Many IoT devices collect and transmit sensitive personal or business data, including health metrics, financial information, or proprietary business information. When these devices lack proper encryption or have insecure communication protocols, attackers can intercept and access this data.

For instance, a compromised smart home security camera might reveal private footage, or a hacked wearable fitness tracker might expose health records. The theft or manipulation of such data not only violates privacy but can also be used for identity theft, financial fraud, or corporate espionage. Also, exploited vulnerabilities can lead to unauthorized control of IoT devices. Attackers gaining control over a smart thermostat could disrupt heating or cooling, while compromised industrial IoT systems could lead to operational failures or even safety hazards. This unauthorized control can be used to cause physical damage, disrupt operations, or manipulate critical systems, posing severe risks to both individuals and organizations.

 

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Strategies for Defending Against IoT Vulnerabilities

Defending against IoT vulnerabilities requires a proactive and multi-layered approach to ensure the security and integrity of connected devices. Implementing strong security practices can significantly mitigate the risks associated with IoT devices.

Change Default Passwords: One of the most fundamental steps is to change default passwords. Many IoT devices come with factory-set passwords that are often weak and widely known. These default credentials can easily be exploited by attackers if not changed. Users should create strong, unique passwords for each device, incorporating a mix of letters, numbers, and special characters. This practice prevents unauthorized access and enhances the overall security of the IoT network. It is crucial for both individuals and organizations to establish password policies and enforce regular password changes to maintain device security.

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Implement Encryption: Implementing strong encryption is another vital strategy. Encryption protects data by converting it into an unreadable format that can only be deciphered with the correct decryption key. For IoT devices, it is essential to use robust encryption protocols for data in transit and at rest. This means ensuring that all data transmitted between devices, as well as stored data, is encrypted to prevent interception and unauthorized access. Encryption helps safeguard sensitive information such as personal data, operational details, and business intelligence, reducing the risk of data breaches and privacy violations.

Regular Software Updates and Patches: Regular software updates and patches are crucial for addressing known vulnerabilities. IoT device manufacturers periodically release updates to fix security flaws and improve functionality. Users should regularly check for and install these updates to ensure that their devices are protected against newly discovered threats. Outdated firmware and software can be exploited by attackers to gain unauthorized access or disrupt device operations. By keeping devices up to date, users can benefit from the latest security enhancements and minimize the risk of exploitation.

Secure Communication Protocols: Secure communication protocols are also essential in protecting IoT devices. Many devices use communication protocols that may not be adequately protected. Implementing secure protocols, such as Transport Layer Security (TLS) or Secure Socket Layer (SSL), ensures that data exchanged between devices and servers is encrypted and protected from eavesdropping or tampering. Users should verify that their IoT devices support modern security standards and employ protocols that offer robust protection against potential attacks.

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Device and Network Segmentation: Device and network segmentation is a strategic approach to limiting the impact of potential breaches. By isolating IoT devices on separate networks from critical systems and data, users can contain any security incidents that may occur. For example, creating a separate network for IoT devices, distinct from the main business network, helps prevent a compromised device from affecting other sensitive areas. Additionally, network segmentation can help manage and monitor device traffic more effectively, making it easier to detect and respond to suspicious activities.

 

Let me leave you with this final note

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IoT devices, while offering substantial benefits through their connectivity and automation capabilities, present significant security vulnerabilities that need to be addressed. Common issues include weak or default passwords, lack of encryption, insecure communication protocols, outdated firmware, and insecure interfaces. These vulnerabilities can lead to serious consequences, such as unauthorized access, data breaches, and operational disruptions.

To effectively defend against these risks, adopting a proactive approach is crucial. Changing default passwords to strong, unique ones is a fundamental step in preventing unauthorized access. Implementing robust encryption for data both in transit and at rest ensures that sensitive information remains protected from interception and tampering. Regularly updating firmware and software is essential to patch known vulnerabilities and mitigate security risks. Using secure communication protocols, such as TLS or SSL, helps protect data exchanges between devices. Finally, segmenting devices and networks limits the potential impact of breaches by isolating IoT devices from critical systems.

 

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Authors Name: Ahmed Olabisi Olajide (Co-founder Eybrids)
LinkedIn: Olabisi Olajide | LinkedIn

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Storm at NSITF as ₦297bn Workers’ Fund Allegations Trail MD/CEO Oluwaseun Mayomi Faleye

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Fresh allegations of large-scale financial irregularities, abuse of office, and governance breakdown have engulfed the Nigeria Social Insurance Trust Fund (NSITF), following a series of petitions by the Arewa Revival Project, a civic accountability and good-governance advocacy group, calling for urgent investigations into the activities of the Managing Director/Chief Executive Officer, Mr. Oluwaseun Mayomi Faleye.

The group has formally written to the Economic and Financial Crimes Commission (EFCC), the Independent Corrupt Practices and Other Related Offences Commission (ICPC), the Office of the Auditor-General of the Federation, the Federal Ministry of Finance under the Whistleblower Policy, the Federal Ministry of Labour and Employment, the NSITF Management Board, as well as organised labour bodies, including the Nigeria Labour Congress (NLC) and the Trade Union Congress (TUC).

At the centre of the controversy are allegations involving the management of approximately ₦297,019,145,288.60 in workers’ funds collected under the Employees’ Compensation Act (ECA) between January 2 and October 9, 2025.

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Workers’ Funds, Not Government Revenue

The Employees’ Compensation Scheme is funded through compulsory employer contributions of one per cent of payroll, designed to provide compensation to Nigerian workers who suffer injury, disability, or death in the course of employment.

According to multiple senior NSITF officials cited in investigative reports, the funds administered by NSITF are not government revenue, but trust funds belonging exclusively to Nigerian workers.

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“This is not government money. This is workers’ money, contributed mandatorily under the law,” one senior official was quoted as saying. “Every kobo is supposed to be protected by layers of checks and balances.”

₦243.2bn Allegedly Spent Without Board Approval

Documents reviewed by investigators indicate that out of the total inflow of ₦297,019,145,288.60, expenditures amounting to ₦243,203,518,621.17 were recorded within the same period.

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Multiple sources allege that a significant portion of this expenditure was carried out without the approval of the NSITF Management Board, in violation of the NSITF Act and existing federal financial regulations.

Officials familiar with the records described the development as a “complete collapse of safeguards” meant to protect workers’ funds.

‘No Approval Limit’ Resolution Raises Alarm

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Central to the allegations is an internal document dated March 4, 2025, reportedly extracted from the minutes of the 46th Executive Committee (EXCO) meeting of NSITF, chaired by Mr. Faleye.

According to the document, financial approval limits were set as follows:

  • Other General Managers: ₦25,000
  • General Manager (Finance): ₦50,000
  • Other Executive Directors: ₦750,000
  • Executive Director (Finance and Investment): ₦1,000,000

However, under the same resolution, the Managing Director/Chief Executive Officer allegedly approved “no limit” for his own spending authority.

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Sources allege that this effectively granted Mr. Faleye unrestricted powers to approve payments of any amount without recourse to the Board or external oversight.

“He simply wrote and signed a document granting himself ‘No Approval Limit’,” a senior official disclosed. “There is absolutely no legal basis for this in the NSITF Act or federal financial regulations.”

Under existing federal thresholds, Managing Directors of government parastatals are reportedly capped at ₦30 million for works and ₦10 million for goods and services, subject to board oversight.

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Over 100 Bank Accounts Linked to One BVN

Perhaps the most startling allegation involves the operation of over 100 bank accounts allegedly linked to a single Bank Verification Number (BVN) belonging to Mr. Faleye.

Documents reportedly show that the BVN, registered on June 10, 2015, with Guaranty Trust Bank, Ajose Adeogun Branch, is associated with numerous accounts, some of which allegedly received funds traceable to NSITF operations.

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“The scale is staggering,” one insider said. “You don’t run over 100 accounts accidentally. This points to systematic structuring.”

$7.3m and Hundreds of Millions of Naira Traced

In a separate document obtained by investigators, alleged inflows of millions of dollars and hundreds of millions of naira were traced to accounts linked to Mr. Faleye and entities reportedly associated with him.

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The transactions listed include:

  • Faleye Oluwaseun Mayomisola, GTBank USD Account 0111206422 – $336,917.00
  • Faleye Oluwaseun Mayomisola, GTBank USD Account 0004754113 – $6,743,421.00
  • Faleye Oluwaseun Mayomisola, GTBank NGN Account 0004754096 – ₦291,182,605.00
  • Fides & Fiducia Client Account, Access Bank NGN Account 0718896883 – ₦584,950,000.00
  • Fides & Fiducia, Access Bank USD Account 0690403396 – $626,279.00
  • Fides & Fiducia, Zenith Bank NGN Account 1013806407 – ₦93,757,500.00
  • Pluschess Limited, Zenith Bank USD Account 071315271 – $20,000.00
  • Faleye Oluwaseun Mayomisola, GTBank USD Account 3001101016 – $75,558.00

The total dollar inflow alone is estimated at over $7.3 million, excluding naira-denominated transactions.

“These are not small transfers,” a source familiar with the documents said. “The volume, frequency, and structuring suggest deliberate efforts to move and possibly conceal funds.”

₦5.53bn Commission Payments Questioned

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Further allegations relate to commission payments totalling ₦5,533,517,486.90, allegedly approved and paid without the consent of the NSITF Management Board or the supervising Ministry.

The payments reportedly include:

  • ₦1,379,186,010.00 – Assurance Services ST ADBA Ltd (09/10/2025)
  • ₦865,000,000.00 – TAGG Global Resources Ltd (18/03/2025)
  • ₦683,777,666.40 – Rate Seal Support & Project Ltd (17/09/2025)
  • ₦659,303,810.50 – Rate Seal Support & Project Ltd (16/05/2025)
  • ₦648,750,000.00 – Rate Gold Solution Nig Ltd (16/05/2025)
  • ₦648,750,000.00 – Gold Solution Nig Ltd (01/08/2025)
  • ₦648,750,000.00 – TAGG Global Resources Ltd (01/08/2025)

Sources allege that the commissions ranged between 15 per cent and 20 per cent, and were paid without lawful authority.

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Board Absence and Governance Vacuum

Mr. Faleye was appointed Managing Director in July 2023, while the NSITF Management Board was reportedly not constituted until around January 2025, creating a governance gap of over one year.

“The Act expressly forbids Executive Management from spending funds without board approval,” a top official explained. “If there is no board, spending should not take place.”

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Arewa Revival Project Condemns Alleged Acts

Reacting to the allegations, the Arewa Revival Project, under the leadership of Hon. Muttakka Ahmed Ibrahim, condemned the alleged acts, describing them as a grave betrayal of public trust if proven.

The group called on President Bola Ahmed Tinubu, as well as all relevant anti-corruption and regulatory authorities, to urgently investigate the allegations to protect workers’ funds and restore confidence in public institutions.

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Responses from Officials

When contacted, Mr. Faleye reportedly stated that he was not aware of the allegations. However, when questioned about the dollar accounts and alleged inflows of over $7.3 million, he reportedly ended the call abruptly.

The Permanent Secretary of the Ministry of Labour, Mr. Salihu Usman, reportedly denied prior knowledge of the alleged transactions, while the Chairman of the NSITF Board, Mr. Shola Olofin, requested time to verify the claims.

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Presumption of Innocence

All allegations remain unproven and subject to investigation. Analysts note that the unfolding developments represent a major test of Nigeria’s public finance accountability framework, particularly in institutions entrusted with workers’ welfare.

As investigations commence, millions of Nigerian workers await answers over the safety of funds meant to protect them in times of injury, disability, and loss.

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Adamawa Business School Hosts Workshop on New Tax Reform Law

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Adamawa Business School Hosts Workshop on New Tax Reform Law

Adamawa Business School Hosts Workshop on New Tax Reform Law

By Ibrahim Abubakar Jimeta

The Adamawa Business School (ABS) has organised a high-level training and sensitisation workshop on the New Tax Reform Law in Nigeria, aimed at enhancing understanding of recent fiscal reforms and strengthening public sector administration in Adamawa State.

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The workshop, held in collaboration with the Office of the Head of the Civil Service of Adamawa State and supported by the Federal Inland Revenue Service (FIRS), brought together Permanent Secretaries, senior public servants, tax officials, and policy experts to examine the implications of the new tax framework for governance and fiscal sustainability.

Speaking during the opening session, the Co-Founder of Adamawa Business School, Mallam Jamilu Yusuf, described the workshop as a strategic intervention designed to bridge knowledge gaps and improve policy implementation within Ministries, Departments, and Agencies (MDAs).

Yusuf explained that the engagement was organised under the school’s Public Policy Support Initiative, a non-profit platform that provides research, training, and capacity development support to government institutions. He noted that Nigeria’s evolving tax landscape, driven by Finance Acts, administrative reforms, and digital innovations, requires senior public officials to be well-informed in order to translate policy into effective practice.

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According to him, Permanent Secretaries and top civil servants play a crucial role in ensuring compliance and successful implementation of tax reforms at the sub-national level, stressing that inadequate understanding of tax laws often creates implementation challenges that negatively affect citizens and institutions.
He reaffirmed Adamawa Business School’s commitment to supporting the state government through policy-focused learning, dialogue, and partnerships that promote transparency, fiscal sustainability, and improved service delivery.

In his remarks, the Head of the Adamawa State Civil Service, Isa Shehu Ardo, mni, emphasised the importance of equipping senior public servants with a clear understanding of the new tax laws. He noted that Permanent Secretaries, as the most senior career officers in the public service, must fully comprehend the reforms in order to guide implementation and avoid difficulties that often arise from poor information and limited awareness.

Delivering the welcome address on behalf of the Office of the Head of Civil Service, the Permanent Secretary, Establishment and Training, Fabian S. Wambai, commended Adamawa Business School for organising the workshop as part of its corporate social responsibility.
Wambai described the new national tax law as a major reform with far-reaching implications for public finance, compliance, and economic stability. He said the workshop provided a valuable opportunity for Permanent Secretaries, as accounting officers and senior administrators, to deepen their understanding of the law and its impact on government operations and engagements with the private sector.

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He urged participants to actively engage in discussions, interact with resource persons, and leverage the knowledge gained to strengthen institutional compliance, improve advisory roles to political leadership, and promote transparent and accountable governance.

The workshop featured sessions led by experienced tax professionals, focusing on the provisions of the new tax reform law, its implications for public financial management, and strategies for effective collaboration between federal and state institutions.

Participants expressed optimism that the training would enhance policy implementation, reduce administrative challenges, and contribute to a more efficient and fiscally informed public service in Adamawa State.

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Noble Ladies Champion Women’s Financial Independence at Grand Inauguration in Abuja

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Women from diverse backgrounds across Nigeria and beyond gathered at the Art and Culture Auditorium, Abuja, for the inauguration and convention of the Noble Ladies Association. The event, led by the association’s Founder and “visionary and polished Queen Mother,” Mrs. Margaret Chigozie Mkpuma, was a colourful display of feminine elegance, empowerment, and ambition.

The highly anticipated gathering, attended by over 700 members and counting, reflected the association’s mission to help women realise their potential while shifting mindsets away from dependency and over-glamorization of the ‘white collar job.’ According to the group, progress can be better achieved through innovation and creativity. “When a woman is able to earn and blossom on her own she has no reason to look at herself as a second fiddle,” the association stated.

One of the association’s standout initiatives is its women-only investment platform, which currently offers a minimum entry of ₦100,000 with a return of ₦130,000 over 30 days—an interest rate of 30 percent. Some members invest as much as ₦1 million, enjoying the same return rate. Mrs. Mkpuma explained that the scheme focuses on women because “women bear the greater brunt of poverty” and the platform seeks “to offer equity in the absence of economic equality.”

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Education is also central to the Noble Ladies’ mission, regardless of age. Their mantra, “start again from where you stopped,” encourages women to return to school or upgrade their skills at any stage in life. The association believes that financial stability is vital in protecting women from cultural practices that dispossess widows of their late husbands’ assets, while also enabling them to raise morally and socially grounded families.

Founded on the vision of enhancing women’s skills and achieving financial stability, the association rests on a value system that discourages pity and promotes purpose. “You have a purpose and you build on that purpose to achieve great potentials and emancipation,” Mrs. Mkpuma said.

A criminologist by training and entrepreneur by practice, she cautions against idleness while waiting for formal employment. “There are billions in the informal and non-formal sectors waiting to be made,” she said, rejecting the “new normal of begging” and urging people to “be more introspective to find their purpose in life and hold on to it.”

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Mrs. Mkpuma’s management style keeps members actively engaged, focusing on vocational skills and training to prepare them for competitive markets. She is exploring “innovative integration of uncommon technologies” and is already in talks with international franchises to invest in Nigeria, with Noble Ladies as first beneficiaries.

The association’s core values include mutual respect, innovation, forward-thinking, equal opportunity, and financial emancipation. With plans underway to establish a secretariat in the heart of Abuja, the group aims to expand its impact.

The event drew high-profile guests, including former Inspector General of Police, Mike Okiro, and a host of VIPs, marking a significant milestone in the association’s drive for women’s empowerment.

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