Cybersecurity used to be a concern for large enterprises with significant IT budgets.

That's no longer the case. As businesses of all sizes have moved critical operations online — financial systems, customer data, supply chain management, communications — they've also become targets.

The threat landscape in Pakistan and the wider Middle East region has evolved significantly. Ransomware attacks, phishing campaigns targeting employees, and vulnerabilities in unmanaged network equipment are now common attack vectors that affect businesses with as few as 20 employees.

Here's what most businesses are getting wrong about network security and what to do about it.

Relying on consumer-grade equipment for business networks. A home router protecting an office network is not security — it's an open door. Business-grade firewalls from vendors like Fortinet, Cisco, or Palo Alto Networks offer features that consumer equipment simply doesn't: application-layer inspection, intrusion prevention, VPN management, and centralized logging. The cost difference between consumer and business-grade security hardware is marginal compared to the cost of a single breach.

Not segmenting the network. A flat network — where every device can communicate with every other device — means that once an attacker is in, they have access to everything. Network segmentation, where different parts of the business operate on separate network zones, limits the blast radius of any compromise.

Treating security as a one-time purchase. A firewall purchased three years ago and never updated is not security. Threat landscapes change. Firmware vulnerabilities are discovered and patched. Security hardware needs active management, regular firmware updates, and periodic review of configuration against current best practices.

Overlooking endpoint security. Firewalls protect the perimeter. Endpoint security protects the devices inside it. In an era of remote work and BYOD (bring your own device) policies, the perimeter has expanded to include laptops at home, mobile devices on public networks, and cloud services accessed from anywhere. Endpoint detection and response (EDR) solutions extend protection to where employees actually work.

Not having a response plan. Most businesses think about preventing attacks. Far fewer think about what happens when one succeeds. An incident response plan — who gets called, what systems get isolated, how data gets restored — is the difference between a contained incident and a business-ending event.

Network security is not a product you buy once. It's an ongoing practice. The businesses that treat it as infrastructure — something to be maintained, monitored, and updated — are the ones that survive an incident. The ones that treat it as an expense to minimize are the ones that make the headlines.