Cybersecurity vendors will sell you more than you need. Here is the minimum viable stack for a mid-market business in 2026.
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Cybersecurity vendors love to sell fear. The reality is that most mid-market businesses do not need a sprawling security stack with twelve vendors. You need a focused set of controls that cover the highest-probability attacks and give you time to respond when something slips through. This article walks through the minimum viable stack for a business between 25 and 200 users.
Multi-factor authentication on every account, conditional access policies for risky sign-ins, and legacy authentication disabled. Identity is the front door for most modern attacks. If you only fix one thing, fix identity first.
Next-generation endpoint protection with behavioral detection on every workstation and server. The old antivirus model of signature matching is not enough. You need software that watches behavior and blocks suspicious patterns even when the specific threat has never been seen before.
Email filtering that catches phishing before it lands in the inbox, link protection that sandboxes URLs before they open, and attachment scanning. Most attacks start with email. Good filtering stops the majority before users ever see them.
A business-class firewall with intrusion prevention and DNS filtering, plus network segmentation that limits blast radius if one device gets compromised. Guest Wi-Fi isolated. IoT devices isolated. Administrative access logged.
Backup is a security control in modern environments because ransomware resilience depends on it. Offsite, immutable, tested regularly. If your backup can be deleted from the production network, it is not going to survive a real attack.
SIEM at mid-market scale is usually overkill unless you are under compliance pressure that requires it. XDR platforms with monthly costs in the tens of thousands are usually oversold. Threat intelligence feeds are mostly marketing. Start with the basics above and add more only when you have clear justification.
Phishing Prevention | Network Security | Full Security Stack
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