"When you run 130 engineers across 45+ active client projects, a compromised developer credential isn't a contained problem. It's exposure across every environment that person accessed: fintech platforms, healthcare systems, supply chain infrastructure.

Someone is watching that constantly now. When something fires, the Agentic SOC classifies it, pulls the relevant logs, maps to MITRE ATT&CK, and routes a structured verdict with reasoning before it reaches a human. By the time it gets to our team, the investigation is done. We're making a decision, not starting from a raw alert at midnight.

Our engineers stopped being the default first responders. That change alone was worth it.

" Review collected by and hosted on G2.com.

"Nothing that's genuinely bothered us. If anything, we underestimated how much calibration time we'd need upfront.

" Review collected by and hosted on G2.com.

With UnderDefense, we get 24/7 security coverage without having to build a dedicated SOC team. The system filters out false alarms before they hit our inbox and connects the dots using our actual environment context. Support has been spot-on whenever we've needed a quick check-in. Review collected by and hosted on G2.com.

Nothing stands out enough to call a real complaint. Review collected by and hosted on G2.com.

We evaluated several MDR providers before choosing UnderDefense. What stood out in the PoC: investigation speed, and the platform layering on top of our existing tools rather than replacing them. SentinelOne, Microsoft Defender, and our 4TB Elastic SIEM deployment stayed in place. The UnderDefense team configured and tuned the entire environment end-to-end.

Our operation spans five countries and the coverage model works consistently across all of them. Same escalation paths, segmented visibility by org unit and region, no separate tooling per location.

In April 2026, proactive threat hunting caught a phishing campaign we had zero visibility on, traced it to a Microsoft 365 Direct Send misconfiguration, and delivered a full root cause analysis and fix the same day. The team's day-to-day changed after this engagement: less reactive work, more time on infrastructure, and a level of confidence in coverage we didn't have before. Review collected by and hosted on G2.com.

Detection tuning to our multi-cloud environment took a few months before coverage was fully dialed in. The team guided us through it, but factor that into your onboarding timeline. Review collected by and hosted on G2.com.

UnderDefense Agentic AI SOC keeps an eye on how our platform is being used, and what I value most is that it tells us when an account's behavior stops looking like a normal customer. Bulk exports, sign-ins that cluster in odd ways, usage that ramps faster than a real user would, all of that arrives as one explained finding we can act on the same day. Our product is a large database of creator data that customers can search and export, so that visibility protects the part of the business that matters most. The analyst on our account knows how our exports and limits work, which saves us a lot of back and forth. Review collected by and hosted on G2.com.

Nothing that has caused a problem. The one thing that took a few rounds early on was agreeing what counts as heavy but legitimate usage, since our agency customers run big batches of searches and exports around campaign launches. Once that was settled, the findings we receive became much sharper. Review collected by and hosted on G2.com.

I like that the platform combines autonomous data gathering with human oversight. The AI agents handle all the correlation and evidence packaging across our SIEM, EDR, and identity systems, but a dedicated human analyst reviews the verdict and validates the recommendation before contacting us.

This model avoids the issues of AI-only tools that automate verdicts without human validation, as well as copilot tools that still require our team to do the heavy lifting and manual querying. The AI does the grunt work, but judgment stays with a human. Review collected by and hosted on G2.com.

Adjusting to a workflow where AI does the initial data gathering took a little time for our team to trust, but support team helped us navigate the transition smoothly. Review collected by and hosted on G2.com.

Our core team's focus has always been building features and maintaining our SDKs, which left us with no capacity for around-the-clock monitoring. Bringing in UnderDefense filled that operational gap so our devs and DevOps engineers don't have to play security analyst on the side. The system filters out the noise, escalates only what matters, and automatically factors in our environment so we're not stuck manually investigating every blip. Review collected by and hosted on G2.com.

Onboarding took a bit of time while they got used to our complex setup. Since then, though, everything’s been running like clockwork. Review collected by and hosted on G2.com.

Running round-the-clock threat monitoring usually means getting pinged for every odd API scan, geographic login shift, or edge challenge spike. UnderDefense Agentic AI SOC connects straight into our edge network, cloud infrastructure, and identity providers to act as an automated Tier-1 analyst. It cross-references suspicious web requests with actual session behavior and user context, delivering pre-triaged alerts with full blast-radius details so we can respond instantly. Review collected by and hosted on G2.com.

Honestly, we haven't hit any friction points so far. The setup was painless, and it seamlessly picked up our cloud telemetry without breaking existing workflows or generating false alarms. Review collected by and hosted on G2.com.

Our own infrastructure runs the same way our monitoring does, constantly. We're pulling data from a lot of external sources and holding API access into several platforms, and none of that was getting watched with the same attention we give to threats we track for clients. UnderDefense covers that gap now. It's a bit of a double standard otherwise, we tell clients 24/7 detection is the baseline, so it has to be true for us too. Review collected by and hosted on G2.com.

No major dealbreakers so far. Everything is performing as expected. Review collected by and hosted on G2.com.

Our sending infrastructure handles hundreds of millions of messages a year across client accounts, and watching that infrastructure for anything unusual, unexpected access, abnormal sending patterns, isn't something a team can do by hand. UnderDefense covers that now. What used to be an impossible needle in a haystack problem comes through filtered and correlated, so we're only looking at what's actually worth a second look. Response has been fast whenever something genuinely needed attention. Review collected by and hosted on G2.com.

No notable issues or pain points worth mentioning. Review collected by and hosted on G2.com.

What I like best is how UnderDefense took over our day-to-day infrastructure monitoring. We get clearly explained, pre-filtered alerts instead of raw noise. Their team knows our specific setup inside out, so we don't waste time re-explaining things, and their response is always fast when it counts. Review collected by and hosted on G2.com.

Nothing stands out enough to call a real complaint. Review collected by and hosted on G2.com.