Guardian Sentinel unifies endpoint, network, cloud, identity and data telemetry into a single autonomous platform — detecting intrusions in under a second, containing them without waiting for an analyst, and handing your auditors the evidence trail automatically.
Trusted by security teams at 6,800+ organisations, including 43 of the Fortune 100
Measured, not marketed
Every figure below is drawn from anonymised production telemetry across the Guardian Sentinel fleet for the twelve months ending 30 June 2026.
Detection and containment timings exclude scheduled maintenance windows and are calculated on production tenants with autonomous response enabled. Full methodology is published in the Sentinel Efficacy Report.
The problem
Intrusions no longer look like malware on a laptop. They look like a valid login from an unusual ASN, a legitimate binary doing something it has never done, and a cloud role quietly granting itself more than it needs — all inside an hour.
The median interval between initial access and the first lateral move has fallen 58% since 2019. Ticket queues and shift handovers cannot keep pace with that clock.
Stolen sessions, token replay and MFA fatigue produce activity that is technically authorised. Signature-based tooling has nothing to match on.
Each one produces its own alerts, its own console and its own blind spots. Correlation becomes a human job performed at 3 a.m. under time pressure.
The Sentinel platform
Guardian Sentinel is not a bundle of point products sharing a login page. Every module writes into the same behavioural graph, so a phishing click, a credential replay and an S3 enumeration become one incident — not three tickets.
A single 12 MB agent for Windows, macOS, Linux and ARM covers prevention, EDR and forensic capture. Ransomware canaries trigger automatic rollback of encrypted files from local shadow copies in under four seconds.
Explore endpoint securityPassive sensors and inline enforcement points reconstruct east-west flows, fingerprint encrypted sessions without decryption, and cut command-and-control egress at the switch the moment a beacon is confirmed.
Explore network securityAgentless posture scanning across AWS, Azure, GCP and OCI plus runtime protection for containers, Kubernetes and serverless. Drift between your IaC baseline and live infrastructure is flagged in under five seconds.
Explore cloud securityContinuous risk scoring for every human and machine identity. Sentinel detects token theft, impossible travel, Kerberoasting and privilege escalation, then revokes the session before the adversary reaches a domain controller.
Explore identity protectionClassify structured and unstructured data in place, track where regulated records actually travel, and block exfiltration to unmanaged devices, personal cloud accounts and generative AI endpoints.
Explore data protectionThe Sentinel AI Analyst reconstructs the full attack narrative, chooses a containment playbook, executes it, and writes the evidence pack your regulator will ask for — with a documented rollback path for every action.
Explore automationCorrelation, not collection
This is a real intrusion pattern, replayed from a Guardian Labs engagement. Every node below arrived from a different sensor. Sentinel stitched them into one graph, scored it, and contained the host before the staging step completed.
How it works
Sentinel ingests everything you already generate, decides what matters, and acts — within the guardrails your security architects define.
Push the agent through your existing MDM or configuration manager and connect cloud and identity providers with read-only roles. Sentinel spends its first 72 hours learning what normal looks like in your estate — which service accounts touch which shares, which build agents call which registries — before it enforces anything.
Typical time to first value: 4 hours.
Behavioural models score every process, session, flow and API call against that baseline and against Guardian Labs intelligence on 340 tracked adversary groups. Related signals collapse into a single incident with a scored attack narrative, mapped to technique-level detail your team already speaks.
Median detection: 0.9 seconds.
Above your confidence threshold, Sentinel executes the containment playbook you approved — isolate, revoke, block, quarantine — and records what it did and why. Below the threshold, it drafts the recommendation and waits for a human. Either way you finish with an evidence pack, not a blank incident report.
Median containment: 8.4 seconds.
Built for your threat model
We replaced four consoles and a nightly log-shipping job with one platform. The number that changed my mind was not detection rate — it was that our analysts stopped starting every shift with 900 open alerts. Last quarter Sentinel contained a token-replay intrusion at 02:14 and my on-call engineer read about it over breakfast.
Halcyon Bank — 18 months on Guardian Sentinel
Halcyon runs Sentinel across 61,000 endpoints, three cloud providers and a regulated on-premises core banking estate under DORA supervision.
From Guardian Labs
Breakout time, ransomware economics and the rise of adversary-operated AI tooling, built from 4.2 trillion weekly events and 1,140 incident-response engagements.
Download the reportHow a Nordic grid operator brought 14,000 OT assets and 22,000 endpoints under one policy without touching a single safety-instrumented controller.
Read the case studyGuardian Labs walks an audience through a real identity-led intrusion — every signal, every decision, every second — and shows what a defender could have done differently.
Watch on demandGet started
Book 45 minutes with a Guardian solutions architect. We will run a real adversary emulation against a sandbox estate, show you the decision trail, and size a deployment against your actual asset inventory — no slideware.
Already under attack? Call the Guardian incident response hotline — 24/7 emergency breach support, with a median 47 minutes from engagement to containment.