{"id":3547,"date":"2026-10-09T00:42:03","date_gmt":"2026-10-08T16:42:03","guid":{"rendered":"http:\/\/www.tidyod.com\/blog\/?p=3547"},"modified":"2026-10-09T00:42:03","modified_gmt":"2026-10-08T16:42:03","slug":"how-can-i-develop-a-security-incident-response-plan-4421-bba82f","status":"publish","type":"post","link":"http:\/\/www.tidyod.com\/blog\/2026\/10\/09\/how-can-i-develop-a-security-incident-response-plan-4421-bba82f\/","title":{"rendered":"How can I develop a security incident response plan?"},"content":{"rendered":"

Hey there\u2014let\u2019s cut to the chase. If you\u2019re reading this, you\u2019re probably a netsec lead at a small-to-mid-sized biz (maybe even a bigger one stuck putting out fires instead of planning ahead) and you\u2019ve been low-key panicking about the next security blip. I get it\u2014last quarter\u2019s phish that almost took out the finance team? Or that weird log spike you didn\u2019t have time to investigate? That stuff doesn\u2019t go away. Network Security<\/a><\/p>\n

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As a netsec vendor, we work with companies every single week that sleep on incident response plans (IRPs) until a ransomware attack locks their whole network. Then they\u2019re scrambling, panicking, and losing money by the minute. Today, I\u2019m gonna walk you through exactly how to build a real, actionable IRP\u2014no jargon, no 50-page binder that never gets touched, just stuff that actually works. Let\u2019s dive in.<\/p>\n

First off, let\u2019s get one thing straight: an IRP isn\u2019t something you write once and file on a shelf. It\u2019s a living, breathing thing. We\u2019ve seen clients build a perfect IRP, then let their team turnover, new tooling get added, or their whole business pivot\u2014and suddenly their plan is useless. So step one? Audit your current setup first, before you type a single word.<\/p>\n

What does that audit look like? Grab a coffee and spend a day walking through your whole stack. Start with your core assets: what can\u2019t you live without? For example, if you\u2019re an e-commerce shop, your payment processing server, customer database, and website are non-negotiable. If you\u2019re a marketing agency, it might be your client project drives and employee productivity tools (Slack, Google Workspace, whatever). We once had a SaaS client who forgot their customer support ticketing system was critical\u2014when a breach took it down, they couldn\u2019t answer customer calls for 3 days. Oops.<\/p>\n

Next, map your current workflow. Who gets woken up at 2 a.m. if something weird happens? Right now, is that just you, or do you have a tier 1 helpdesk, a dev team, legal, comms? Write down every single person involved, even if they \u201cshouldn\u2019t\u201d be. And here\u2019s a pro tip from our team\u2014note their availability. If your key dev is on paternity leave for 6 weeks, that person on the list isn\u2019t actually on call. Update that. Also, pull logs\u2014your SIEM, firewalls, email servers\u2014so you know where breaches usually start. 90% of incidents come from phish or unpatched vulnerabilities, so pay attention to the stuff your tools are already flagging.<\/p>\n

Okay, audit done. Now, step two: define clear, specific incident types. Not \u201csomething bad happens,\u201d but actual, categorized scenarios. Because if you say \u201cwe\u2019ll handle a breach,\u201d everyone will have a different idea of what that means. We break these into tiers internally, and it works. Let\u2019s keep it simple for your plan:<\/p>\n

Tier 1: Minor stuff you can fix in an hour. Like a single employee clicking a phish link that didn\u2019t get past your spam filter, or a random malware alert on one laptop. No data loss, no customer impact. Example: \u201cA user reports a suspicious email in their personal inbox that wasn\u2019t quarantined.\u201d<\/p>\n

Tier 2: Medium impact. A small phish campaign that got 5 employees, or a server with a critical unpatched vulnerability that\u2019s been accessed but no data leaked. Maybe minor business disruption, but no long-term hit to customers. Example: \u201cOur customer test environment has unauthorized access from an external IP, but no production data is at risk.\u201d<\/p>\n

Tier 3: Full-on crisis. Ransomware locking your core servers, customer data stolen and leaked, DDoS taking down your public site for hours. This is the stuff that makes the news (internally, at least) and costs you revenue. Example: \u201cRansomware encrypts our primary payment processing server, and 10k customer credit card records are exfiltrated.\u201d<\/p>\n

Why tier them? Because you don\u2019t need to get the CEO on the phone for a Tier 1 alert. Assign different response teams per tier, so small stuff gets fixed fast without wasting senior time. We had a client who used to loop in their CISO for every single alert\u2014they were spending 10 hours a week on Tier 1 stuff instead of working on long-term security. Huge waste.<\/p>\n

Step three: assign roles and responsibilities like your team depends on it (because they will). No more \u201csomeone handle this.\u201d This is where most IRPs fail. Let\u2019s make this concrete, not generic. Don\u2019t write \u201cincident response team\u201d \u2014 write names, or clear backup roles if names are subject to change. Here\u2019s a breakdown of the non-negotiable roles, with what they actually do:<\/p>\n