Does a 30-person company need a SOC?
What a security operations center actually does, what it costs to build versus buy, and how a small business gets 24/7 coverage without a million-dollar team.
A working journal from the IronCastle SOC and detection engineering teams. Incident write-ups (sanitised), threat intelligence we think you'd actually use, and the occasional opinion piece on the state of managed security for SMBs.
A logistics SMB. A finance manager's MFA fatigue. A token-stealer hidden in a fake Microsoft Authenticator update. Here's the full timeline, what our detection missed, what caught it, and what we shipped fleet-wide so it never happens to anyone else again.
By Mariana Reyes, VP Security Operations · 14 February 2026
What a security operations center actually does, what it costs to build versus buy, and how a small business gets 24/7 coverage without a million-dollar team.
Antivirus blocks the malware it recognizes. MDR is people watching your network around the clock. Here's the difference — and which one a small business really needs.
The warning signs of a hacked business email are quiet by design — here's how to spot them in 15 minutes and what to do if you find one.
A fast-moving ransomware crew is breaking into small businesses through unpatched firewall VPNs, stealing data, and encrypting everything. Here's what it is — and what to do this week.
A new ransomware family targeting OT-adjacent networks via Zyxel firewall CVEs. We've seen it three times in our fleet this month; all three contained pre-encryption.
From Elasticsearch to ClickHouse: a four-month migration that cut our query p95 from 11 seconds to 340ms while halving the storage bill. The trade-offs we made and the ones we didn't.
The average SMB IT lead is drowning in alerts from tools that were sold to them as solutions. A reset on what we should be measuring.
A spoofed director email, a $114,000 wire transfer, and the seven-second window where our detection scored the conversation as anomalous. Containment, recovery, and what changed in the runbook.
Annual roadmap letter. The five things we're committing to ship publicly, the three we're not, and why.
A 4× increase in malicious OAuth consent grants targeting M365 tenants. The three permissions to watch, the policy switch most tenants haven't enabled, and a one-page response runbook.
Why our detection engine deliberately delays scoring by 30–90 seconds. A short essay on noise budgets, batch correlation, and the engineering value of patience.
Everything we shipped to the platform in October–December, with the rationale and any backtest results worth noting.
An EDR licence is not a security operations program. A long, friendly argument with a customer who almost left us, and what we both learned.
A departing operations manager, two USB exfil events, and a polite conversation with HR. Sanitised but instructive.
A look at LLM-generated phishing in our fleet. Click-rates are up; conversion-to-compromise is flat. The actual rising threat is something else.
Cloud costs are up 18% this year for us. We're absorbing it. Here's the reasoning and the maths.
How we prompt-engineered the weekly owner digest to stay calm, accurate, and 220-words-or-fewer. With examples and a couple of regrettable failures.
A customer's MSP got popped. Lateral movement attempted into our customer's environment. Caught in 11 minutes. The trust-boundary lessons.
A founder essay. The industry's incentive structures, why most managed-security engagements fail SMBs, and the specific bets we made differently.
Quarterly intel digest. Identity attacks now account for 41% of our fleet's confirmed-malicious incidents. The full breakdown.
A vishing call to a finance team, a near-wire, and the callback policy that saved $230k. With audio waveforms (sanitised).
A third-party JS pixel got compromised. Our fleet caught the C2 beacon within 4 minutes. The vendor took six days to respond.