What are the opening hours?

Monday 07:00 - 18:00 Tuesday 07:00 - 18:00 Wednesday 07:00 - 18:00 Thursday 07:00 - 18:00 Friday 07:00 - 18:00

BUI

Dublin
D24 EO29
Ireland

IRVINE
530 Technology Drive
Suites 100 and 200
Irvine, California
92618
United States

BUI is an award-winning global technology consultancy delivering cloud, security, networking and managed services from offices in South Africa, East Africa, the United Kingdom, Ireland, and the United States. Deeply rooted in the Microsoft ecosystem, BUI is a Microsoft Azure Expert MSP and Microsoft Solutions Partner for Microsoft Cloud with verified expertise in Business Applications, Data & AI,

Digital & App Innovation, Infrastructure, Modern Work, and Security. In addition, BUI holds 10 Microsoft Advanced Specializations and is proud to be a Microsoft Security Experts MXDR Partner and a member of the Microsoft Intelligent Security Association. BUI draws on more than 20 years of industry experience and its longstanding partnerships with Microsoft, Cisco, and Palo Alto Networks to help customers be more productive, more secure, and more resilient in a changing world. BUI is ISO 22301:2019 and 27001:2022 certified and is consistently recognised for its premier capabilities in cloud computing, cyber security, customer enablement, and business innovation. Recent Microsoft accolades include:

• 2024 Country Partner of the Year (South Africa)
• 2023 Country Partner of the Year (South Africa)
• 2022 Azure Infrastructure Partner of the Year
• 2022 Modern Work Partner of the Year
• 2022 Security Partner of the Year
• 2021 Azure Infrastructure Partner of the Year
• 2021 Modern Work Partner of the Year (Finalist)
• 2021 Security Partner of the Year
• 2021 Consulting Services Partner of the Year (Finalist)
• 2020 Country Partner of the Year (South Africa)
• 2020 Azure Infrastructure Partner of the Year
• 2020 Modern Work Partner of the Year
• 2020 Security Partner of the Year

Find our branches in:

JOHANNESBURG (Head Office)
Second Floor
Microsoft Corporate Hill
3012 Winnie Mandela Drive
Bryanston, 2191
South Africa

CAPE TOWN
Harbour Bridge
Roggebaai Canal
Dockrail Road
Cape Town, 8000
South Africa

DURBAN
Unit D5
Meyrickton Park
7 Meyrickton Place, St Helier
Gillitts, 3625
South Africa

WELKOM
393 Stateway
Doorn
Welkom
9459
South Africa

NAIROBI
Ihit Kenya
Dennis Pritt Road
Kilimani
Nairobi
Kenya

LONDON
71-75 Shelton Street
Covent Garden
London, England
WC2H 9JQ
United Kingdom

DUBLIN
Inniscarra
Main Street
Rathcoole, Co.

19/08/2025

🔎 What really happens during an MFA Relay Attack? 🔎

In Episode 11 of our CTRL + ALT + DEFEND video series, BUI Cloud Solutions Architect Dirk Prinsloo reveals how cybercriminals exploit multi-factor authentication to gain access to user accounts.

Watch and see exactly how these attacks work, what tools and techniques are used, and – most importantly – how you can defend against them.

➡️🔗 https://hubs.li/Q03DjKS40

18/08/2025

Is your domain protected? Are you safe from email impersonation? Your DMARC compliance score might surprise you… Check yours in minutes and see if you're really as secure as you think you are.

Our DMARC testing tool gives your domain a compliance score out of 5.
✅ Find out how well you're protected against spoofing
✅ Identify gaps in your email authentication setup
✅ Benchmark your email security posture

➡️ Try it now: https://hubs.li/Q03D5P9L0

17/08/2025

IT news roundup! Dive into the past week's headlines, highlights, and trending topics in technology to start your Monday in the know…

🔐 SECURITY 🔐

Microsoft fixes Kerberos Zero-Day in August Patch Tuesday update | Microsoft has rolled out fixes for more than a hundred security flaws across its software portfolio, including a Zero-Day privilege escalation flaw in Windows Kerberos.
🔗 Details: https://hubs.li/Q03D3WgC0

Cisco warns of critical vulnerability in Firewall Management Centre | Cisco has warned customers about a critical remote code ex*****on vulnerability in the RADIUS subsystem of its Secure Firewall Management Centre software.
🔗 Details: https://hubs.li/Q03D3WL90

Warlock claims ransomware attack on C**t | Telecoms and network services company C**t has been hit by a cyberattack claimed by the Warlock ransomware gang.
🔗 Details: https://hubs.li/Q03D3WHr0

Microsoft enhances protection against malicious URLs in Teams chats | Microsoft is developing new features to improve protection against dangerous file types and malicious URLs in Teams chats and channels.
🔗 Details: https://hubs.li/Q03D3W7j0

💼 INDUSTRY NEWS 💼

WhatsApp takes on Teams, Zoom with new meeting features | The Meta-owned messaging service WhatsApp is introducing a set of new features aimed at making group calls easier to plan and more interactive.
🔗 Details: https://hubs.li/Q03D3WGy0

🧠 ARTIFICIAL INTELLIGENCE 🧠

YouTube tests AI-powered age verification | YouTube will begin testing a new age-verification system that relies on artificial intelligence to differentiate between adults and minors, based on the kinds of videos they have been watching.
🔗 Details: https://hubs.li/Q03D3WqZ0

15/08/2025

✔️ Clean code. ✔️ Cool people. ✔️ Mission-driven products.

Join our Johannesburg team and create secure, scalable web-based applications as our Senior Software Developer (Full Stack).

This is a key role requiring a technical leader who thrives across the full software development lifecycle – from architecture and prototyping to deployment and maintenance. Head over to our careers portal 👇 to explore this opportunity.

💼 Role: Senior Software Developer (Full Stack)
🌍 Location: Bryanston, Johannesburg, SA
💻 Remote status: Hybrid
🔗 Details and applications: https://hubs.li/Q03CTRmb0

14/08/2025

It only takes one fake email to damage your business reputation. The scary part? That message can look like it came from you – because if your domain isn't protected by DMARC, anyone can spoof your email.

Watch our explainer video to see how DMARC helps:
📧 Prevent unauthorised senders from using your domain
📧 Ensure your legitimate emails get delivered
📧 Safeguard your brand reputation
🔗 https://hubs.li/Q03CJD2l0

13/08/2025

📢 Now hiring: Senior Software Developer (Full Stack)

Are you the kind of developer who builds MVPs in the morning and tunes production servers in the afternoon? Can you debug SQL today and design with React tomorrow? Do you enjoy working with modern tech stacks and collaborating with cross-functional teams?

We're looking for a skilled technical professional with:
✔️ A bachelor's degree or higher qualification in Computer Science, Software Engineering, or a related field;
✔️ Expertise in backend: Node.js, Python, or Java; RESTful API development; authentication frameworks (OpenID, JWT);
✔️ Expertise in frontend: Modern JavaScript frameworks (React, Angular, Vue.js);
✔️ DevOps/Cloud experience: AWS (Lambda, API Gateway, DynamoDB/RDS); containerisation and CI/CD (e.g., GitHub Actions, Jenkins).
✔️ Professional experience in PHP frameworks (Laravel, Symfony) or .NET technologies (ASP .NET Core, Entity Framework).

Explore this opportunity on our careers portal 👇 or tag a friend or colleague who might be interested!

💼 Role: Senior Software Developer (Full Stack)
🌍 Location: Bryanston, Johannesburg, SA
💻 Remote status: Hybrid
🔗 Details and applications: https://hubs.li/Q03Cv_x20

12/08/2025

Too many legitimate emails end up in spam folders – and that can hurt your business. With DMARC in place, you can protect your domain and make sure your messages reach their destination. Read our guide to find out how DMARC helps:

✉️ Authenticate your messages
✉️ Improve your email deliverability rate
✉️ Build trust with your audience
👉 https://hubs.li/Q03CjDzw0

11/08/2025

… We're looking for a Senior Software Developer to join our team in Bryanston! This is a unique opportunity for a full-stack developer who is passionate about security-first design, open-source tools, and data-driven solutions.

In this role, you'll be a technical leader working on everything from MVPs to production systems, while also mentoring junior developers and collaborating with stakeholders. Apply online through our careers portal 👇

💼 Role: Senior Software Developer (Full Stack)
🌍 Location: Bryanston, Johannesburg, SA
💻 Remote status: Hybrid
🔗 Details and applications: https://hubs.li/Q03C4jln0

10/08/2025

Stay in the loop with the top technology news and updates from the past week and start your Monday informed...

🔐 SECURITY 🔐

Microsoft, CISA warn users about CVE-2025-53786 | Microsoft has warned customers to mitigate a high-severity vulnerability in Exchange Server hybrid deployments – and the US Cybersecurity and Infrastructure Security Agency wants swift action too.
🔗 Details: https://hubs.li/Q03C3gDW0

Trend Micro confirms exploitation of Apex One flaws | Trend Micro has released mitigations to address critical security flaws in on-prem versions of the Apex One Management Console that it said have been exploited in the wild.
🔗 Details: https://hubs.li/Q03C3jvq0

Google discloses data breach via Salesforce hack | Google is the latest company to suffer a data breach in an ongoing wave of Salesforce CRM data theft attacks conducted by the ShinyHunters extortion group.
🔗 Details: https://hubs.li/Q03C3gVS0

Airline company confirms data breach | Air France and KLM have announced that attackers breached a customer service platform and stole the data of an undisclosed number of customers.
🔗 Details: https://hubs.li/Q03C3gFX0

💼 INDUSTRY NEWS 💼

The big announcements from Black Hat USA 2025 | At this year's industry conference in Las Vegas, cybersecurity vendors unveiled dozens of new products and services as well as updates to existing offerings. Here's the round-up of announcements in four parts.
🔗 Announcements, Part 1: https://hubs.li/Q03C3jvr0
🔗 Announcements, Part 2: https://hubs.li/Q03C3bsp0
🔗 Announcements, Part 3: https://hubs.li/Q03C3hYc0
🔗 Announcements, Part 4: https://hubs.li/Q03C3jqN0

🧠 ARTIFICIAL INTELLIGENCE 🧠

OpenAI rolls out GPT-5 | OpenAI says GPT-5 is a step up from its prior GPT models across a number of areas, including writing and coding.
🔗 Details: https://hubs.li/Q03C3cd50

09/08/2025

Happy National Women's Day to each and every one of the remarkable women of ! These personalised keyrings 👇 have been delivered to your desk as a small token of our appreciation for all you do for our company, our customers, and our communities. Thank you for your dedication throughout the year!

Your beaded gifts have been handcrafted by talented rural women using skills passed down through generations. Visit the Earth Africa website to learn more about these artisans and the stories of strength and resilience woven into every colourful piece they create: https://hubs.li/Q03C2DsM0

08/08/2025

… We are in South Africa, Kenya, and the United Kingdom! If you're ready to advance your career at a trailblazing company where you'll be recognised for who you are, rewarded for your performance, and celebrated for your achievements, then apply today 👇

💼 Role: Senior Software Developer (Full Stack)
🌍 Location: Bryanston, Johannesburg, SA
💻 Remote status: Hybrid
🔗 Details and applications: https://hubs.li/Q03BTNq50

💼 Role: Sales Lead (Cloud and Security)
🌍 Location: Nairobi, Kenya
💻 Remote status: Hybrid
🔗 Details and applications: https://hubs.li/Q03BTM_c0

💼 Role: Sales Lead (Cloud and Security)
🌍 Location: London, England
💻 Remote status: Hybrid
🔗 Details and applications: https://hubs.li/Q03BTN5B0

07/08/2025

From laws like POPIA and the GDPR to industry standards like ISO 27001, compliance frameworks increasingly expect strong email authentication. DMARC ensures your organisation's email practices are compliant – locally and internationally.

✅ Avoid compliance gaps
✅ Build a better security posture
✅ Develop trust with your customers

👉 Download our DMARC guide to learn more:
🔗 https://hubs.li/Q03BLcks0

Address

3012 Winnie Mandela Dr, Bryanston
Johannesburg
2191

Opening Hours

Monday	07:00 - 18:00
Tuesday	07:00 - 18:00
Wednesday	07:00 - 18:00
Thursday	07:00 - 18:00
Friday	07:00 - 18:00

Telephone

+27877402400

Website

https://www.bui.co/get-started/

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Innovation. Delivery. Results.

At BUI, we use technology in new and powerful ways to create customised IT solutions that enable performance and productivity in a changing world.

We design, develop, implement, maintain, and manage IT assets for small, medium, large, and enterprise-level businesses in a variety of sectors and industries.

Our primary focus areas include Cloud Infrastructure, Cyber Security, and Digital Transformation. We supply products, services, and tools to help people get the most from their hardware and software.

As a long-standing and award-winning Microsoft Gold Partner, we’re proud to provide specialist guidance and industry-leading support to organisations utilising the Microsoft suite.