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Visa Introduces Features to Prevent, Disrupt Payment Fraud

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Visa Payments

Visa has launched a suite of innovative security capabilities to help prevent and disrupt payment fraud, breaking new ground in cybersecurity and fraud prevention across Central & Eastern Europe, Middle East and Africa (CEMEA) at the Visa CEMEA Security Summit 2019 in Barcelona, Spain.

The forum brings together payment industry experts from risk, business and operational departments of financial institutions, merchants, processors and other payment service providers.

The new payment security services and capabilities help protect the integrity of the payments ecosystem by detecting and disrupting fraud threats targeting financial institutions and merchants.

The new features are available to Visa clients at no additional cost or sign-up, but through Visa’s continued investments in intelligence and technology. These add to the long list of benefits financial institution and merchant clients enjoy as participants in the Visa global payment network.

“Cybercriminals attempt to bypass traditional defenses by stealing credentials, harvesting data, obtaining privileged access, and attacking trusted third-party supply chains,” said Hector Rodriguez, Regional Risk Officer, CEMEA, Visa. “Visa’s new payment security capabilities combine payment and cyber intelligence, insights and learnings from breach investigations, and law enforcement engagement to help financial institutions and merchants solve the most critical security challenges.”

According to a global report by Forrester Consulting commissioned by Visa, ATM cashout attacks that exploit vulnerabilities among financial institutions and processors to remove fraud controls to withdraw money from cash machines fraudulently, and automated testing of values and credentials to gain unauthorized access to information and functionality called “enumeration attacks” were among the most prevalent account-related fraud types identified by respondents.

At the same time, card-not-present fraud that includes ecommerce, phone and mail orders was found to be less frequent but caused more damage to businesses—representing nearly 40% of fraud losses and operational costs. Managing payment fraud holistically is imperative to meet these challenges.

Protecting the Ecosystem from Threats

At the center of every Visa transaction is trust. As threats evolve, Visa’s payment security capabilities help to holistically protect the core components of the ecosystem—people, data and infrastructure—to maintain trust and connect the world through the most innovative, reliable and secure digital payment network. The new security capabilities add to existing protections and include:

Visa Vital Signs

Actively monitors transactions and alerts financial institutions of potential fraudulent activity at ATMs and merchants that may indicate an ATM cashout attack. To limit financial losses for financial institutions, Visa can automatically or in coordination with clients, step in to suspend malicious activity.

Visa Account Attack Intelligence

Applies deep learning to Visa’s vast number of processed card-not-present transactions to identify financial institutions and merchants that hackers may be using to guess account numbers, expiration dates and security codes through automated testing. The machine learning technology detects sophisticated enumeration patterns, eliminates false positives, and alerts affected financial institutions and merchants before fraudulent transactions begin.

Visa Payment Threats Lab

Creates an environment to test a client’s processing, business logic and configuration settings to identify errors leading to potential vulnerabilities. For example, Visa can verify if a financial institution is effectively validating cryptograms—dynamically generated codes unique to each transaction—for EMV® chip transactions.

Visa eCommerce Threat Disruption

A proprietary solution that uses sophisticated technology and investigative techniques to proactively scan the front-end of eCommerce websites for payment data skimming malware. Identifying potential website compromises limits the amount of time malware might be present on a merchant website and significantly reduces exposure of customer and payment data.

These capabilities complement Visa Payment Threat Intelligence, which provides actionable and informational cyber intelligence to clients and merchants worldwide. It offers timely intelligence reporting, technical delivery and educational materials. This includes alerts, analysis, technical indicators, and mitigations for potential cybercrime threats, account compromises and fraud.

Dipo Olowookere is a journalist based in Nigeria that has passion for reporting business news stories. At his leisure time, he watches football and supports 3SC of Ibadan. Mr Olowookere can be reached via [email protected]

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Lagos’ Team Nevo Wins 3MTT Southwest Regional Hackathon

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Lagos 3MTT Hackathon Team Nevo

By Adedapo Adesanya

Lagos State’s representative, Team Nevo, won the 3 Million Technical Talent (3MTT) South-West Regional Hackathon, on Tuesday, December 9, 2025.

The host state took the victory defeating pitches from other south west states, including Oyo, Ogun, Osun, Ekiti, and Ondo States.

This regional hackathon was a major moment for the 3MTT Programme, bringing together young innovators from across the South-West to showcase practical solutions in AI, software development, cybersecurity, data analysis, and other key areas of Nigeria’s digital future.

Launched by the Federal Ministry of Communications, Innovation, and Digital Economy, the hackathon brought together talented young innovators from across the Southwest region to showcase their digital solutions in areas such as Artificial Intelligence (AI)/Machine Learning, software development, data analysis, and cybersecurity, among others.

“This event not only highlights the potential of youth in South West but also advances the digital economy, fosters innovation, and creates job opportunities for our young people,” said Mr Oluwaseyi Ayodele, the Lagos State Community Manager.

Winning the hackaton was Team Nevo, made up of Miss Lydia Solomon and Mr Teslim Sadiq, whose inclusive AI learning tool which tailors academic learning experiences to skill sets of students got the top nod, with N500,000 in prize money.

Team Oyo represented by Microbiz, an AI business tool solution, came in second place winning N300,000 while Team Ondo’s Fincoach, a tool that guides individuals and businesses in marking smarter financial decisions, came third with N200,000 in prize money.

Others include The Frontiers (Team Osun), Ecocycle (Team Ogun), and Mindbud (Team Ekiti).

Speaking to Business Post, the lead pitcher for Team Nevo, Miss Solomon, noted, “It was a very lovely experience and the opportunity and access that we got was one of a kind,” adding that, “Expect the ‘Nevolution’ as we call it, expect the transformation of the educational sector and how Nevo is going to bring inclusion and a deeper level of understanding and learning to schools all around Nigeria.”

Earlier, during his keynote speech, the chief executive officer (CEO) of Sterling Bank, Mr Abubakar Suleiman, emphasised the need for Nigeria’s budding youth population to tap into the country’s best comparative advantage, drawing parallels with commodities and resources like cocoa, soyabeans, and uranium.

“Tech is our best bet to architect a comparative advantage. The work we are doing with technologies are very vital to levelling the playing field.”

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re:Invent 2025: AWS Excites Tech Enthusiasts With Graviton5 Unveiling

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AWS Graviton5

By Aduragbemi Omiyale

One of the high points of the 2025 re:Invent was the unveiling of Graviton5, the fifth generation of custom Arm-based server processors from Amazon Web Services (AWS).

Many tech enthusiasts believe that the company pushed the limits with Graviton5, its most powerful and efficient CPU, frontier agents that can work autonomously for days, an expansion of the Amazon Nova model family, Trainium3 UltraServers, and AWS AI Factories suitable for implementing AI infrastructure in customers’ existing data centres.

Graviton5—the company’s most powerful and efficient CPU

As cloud workloads grow in complexity, organizations face a persistent challenge to deliver faster performance at lower costs and meet sustainability commitments without trade-offs.

AWS’ new Graviton5-based Amazon EC2 M9g delivers up to 25% higher performance than its previous generation, with 192 cores per chip and 5x larger cache.

For the third year in a row, more than half of new CPU capacity added to AWS is powered by Graviton, with 98 per cent of the top 1,000 EC2 customers—including Adobe, Airbnb, Epic Games, Formula 1, Pinterest, SAP, and Siemens—already benefiting from Graviton’s price performance advantages.

Expansion of Nova family of models and pioneers “open training” with Nova Forge

Amazon is expanding its Nova portfolio with four new models that deliver industry-leading price-performance across reasoning, multimodal processing, conversational AI, code generation, and agentic tasks. Nova Forge pioneers “open training,” giving organizations access to pre-trained model checkpoints and the ability to blend proprietary data with Amazon Nova-curated datasets.

Nova Act achieves breakthrough 90% reliability for browser-based UI automation workflows built by early customers. Companies like Reddit are using Nova Forge to replace multiple specialized models with a single solution, while Hertz accelerated development velocity by 5x with Nova Act.

Addition of 3 frontier agents, a new class of AI agents that work as an extension of your software development team

Frontier agents represent a step-change in what agents can do. They’re autonomous, scalable, and can work for hours or days without intervention. AWS announced three frontier agents—Kiro autonomous agent, AWS Security Agent, and AWS DevOps Agent. Kiro autonomous agent acts as a virtual developer for your team, AWS Security Agent is your own security consultant, and AWS DevOps Agent is your on-call operational team.

Companies, including Commonwealth Bank of Australia, SmugMug, and Wester Governors University have used one or more of these agents to transform the software development lifecycle.

Unveiling Trainium3 UltraServers

As AI models grow in size and complexity, training cutting-edge models requires infrastructure investments that only a handful of organizations can afford.

Amazon EC2 Trn3 UltraServers, powered by AWS’s first 3nm AI chip, pack up to 144 Trainium3 chips into a single integrated system, delivering up to 4.4x more compute performance and 4x greater energy efficiency than Trainium2 UltraServers.

Customers achieve 3x higher throughput per chip while delivering 4x faster response times, reducing training times from months to weeks. Customers including Anthropic, Karakuri, Metagenomi, NetoAI, Ricoh, and Splash Music are reducing training and inference costs by up to 50 per cent with Trainium, while Decart is achieving 4x faster inference for real-time generative video at half the cost of GPUs, and Amazon Bedrock is already serving production workloads on Trainium3.

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NITDA Alerts Nigerians to ChatGPT Vulnerabilities

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ChatGPT

By Adedapo Adesanya

The National Information Technology Development Agency (NITDA) has issued an advisory on new vulnerabilities in ChatGPT that could expose users to data-leakage attacks.

According to the advisory, researchers discovered seven vulnerabilities affecting GPT-4o and GPT-5 models that allow attackers to manipulate ChatGPT through indirect prompt injection.

The agency explained that hidden instructions placed inside webpages, comments, or Uniform Resource Locators (URLs) can trigger unintended commands during regular browsing, summarisation, or search actions.

“By embedding hidden instructions in webpages, comments, or crafted URLs, attackers can cause ChatGPT to execute unintended commands simply through normal browsing, summarization, or search actions,” they stated.

The warning followed rising concerns about AI-powered tools interacting with unsafe web content and the growing dependence on ChatGPT for business, research, and public-sector tasks.

NITDA added that some flaws allow the bypassing of safety controls by masking malicious content behind trusted domains.

Other weaknesses take advantage of markdown rendering bugs, enabling hidden instructions to pass undetected.

It explained that in severe cases, attackers can poison ChatGPT’s memory, forcing the system to retain malicious instructions that influence future conversations

They stated that while OpenAI has fixed parts of the issue, Large-Language Models (LLMs) still struggle to reliably separate genuine user intent from malicious data.

The Agency warned that these vulnerabilities could lead to a range of cybersecurity threats, including unauthorised actions carried out by the model; unintended exposure of user information; manipulated or misleading outputs; and long-term behavioural changes caused by memory poisoning, among others.

It advised Nigerians, businesses, and government institutions to adopt several precautionary steps to stay safe. These include limiting or disabling the browsing and summarisation of untrusted websites within enterprise environments and enabling features like browsing or memory only when necessary.

It also recommended regular updates to deployed GPT-4o and GPT-5 models to ensure known vulnerabilities are patched.

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