Greg Hay is a senior technology leader and the founder of Hayshack Enterprises. With over 29 years of experience in enterprise IT leadership, he specializes in cybersecurity, cloud architecture, and digital transformation across the retail and wholesale sectors. He has led major initiatives in infrastructure modernization, SAP environments, and security programs for large-scale operations.
Greg holds an MBA from Edinburgh Business School at Heriot-Watt University and an MSc in Cybersecurity, graduating Summa Cum Laude from EC-Council University. His career is defined by a commitment to technical precision and strategic resilience, often acting as the primary point of resolution for complex system failures and architectural bottlenecks.
At Hayshack, Greg applies this enterprise-grade discipline to help businesses secure their infrastructure and modernize their digital strategy. He combines high-level business leadership with deep technical expertise to build systems that are both scalable and secure.
Read more about his background on the About page.
Antivirus and a firewall still belong in every South African business. But they answer a different question than the one attackers pose in 2026. Antivirus asks “what do I already know about this threat?” A firewall asks “which ports are open?” Pre-emptive cybersecurity asks a question neither of them can: where will the attacker go…
Network security for South African SMBs starts with one uncomfortable question: if someone plugged a laptop into a port in your office tomorrow morning, how far could they get before anything stopped them? For most businesses we assess, the honest answer is “too far”. The firewall at the edge is often the only gate, and…
Endpoint security is the layer of protection that sits on the devices your staff actually use, laptops, desktops, phones, tablets, and it is where most South African breaches begin. The attack does not start at your firewall. It starts when someone opens a poisoned invoice on a company laptop, or connects an unmanaged phone to…
Phishing is the most common cyber attack aimed at South African businesses, and most of it never touches your firewalls. It lands in an employee’s inbox, dressed as a SARS tax notice, a load confirmation from a transport supplier, or an invoice update from a bank. One click, one set of captured credentials, and the…
Cybersecurity incident response in South Africa used to be a niche speciality. It is now a core business skill, because the question is no longer whether your company will face an incident, but when, and whether your team knows what to do in the first 24 hours. This guide walks through a practical first-24-hours plan…
Most cybersecurity is reactive. Something bad happens, the system detects it, the team responds. Reactive security is the standard model, antivirus, firewalls, incident response. It works, up to a point. The problem is that by the time you are reacting, the attack has already succeeded. Data may already be encrypted, credentials may already be stolen,…
Ransomware is the most active threat to South African businesses in 2026. It is not a distant risk or a theoretical concern, local companies are being hit weekly, and most of them are not prepared. The attackers are not targeting big corporations only. Small and medium businesses are the primary targets because their defences are…
Internet connectivity is a business-critical decision for South African SMEs. The wrong choice means dropped connections during client calls, slow cloud access, and an IT headache that never goes away. The right choice means connectivity that just works, so you can focus on running the business. This comparison covers the three main connectivity options available…
Vodacom is the biggest connectivity provider in South Africa. Most businesses know them for fibre, LTE, and mobile. What fewer businesses know is that Vodacom Business runs a managed security operation centre, MDR services, email security, perimeter protection, and disaster recovery as a service. We integrate those services into the security stacks we build for…
South African businesses often cobble together their IT management from free tools, cheap tools, and whatever came with the server. Monitoring from one vendor, patching from another, helpdesk from a third, and nothing talks to anything else. It works until it does not, and the IT person spends more time switching between dashboards than actually…