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from alert to automated response
Organizations defended by Sophos Fusion
Security and IT integrations included in the unified, open architecture
As per Gartner®, “Organizations need an intelligent overlay that connects the different elements of their cybersecurity toolset to proactively and reactively respond to risks and threats at machine speeds.”
Neil MacDonald
Gartner | VP, Distinguished Analyst and Gartner Fellow Emeritus
Gartner, Tech FutureSight: Protect the Global Attack Surface With an Autonomous Cyber Defense System, Neil MacDonald, 12 December 2025. GARTNER is a trademark of Gartner, Inc. and/or its affiliates.
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A new model of cyber defense
As AI transforms the speed, scale, and sophistication of attacks, adding more individual security solutions is not the answer. Stopping AI-enabled threats that move at machine speed requires cyber defenses that work together, connecting everything and responding as one. This is what Sophos Fusion delivers.
Your tools aren't the problem. The gaps between them are.
As AI accelerates the speed and scale of attacks, adding another product to the stack doesn’t close the gaps – it adds to them. The problem isn't the tools you own, it's that they work in isolation instead of as one coordinated defense.
False platform promises
Most “platforms” are products bolted together after the fact, unified by a shared console. Attackers live in the blind spots between them.
Multi-stage attacks
AI has turned single-vector attacks into multi-dimensional campaigns. Attacks now cross multiple surfaces in one coordinated, multi-stage effort. Individual solutions see only their own domain and humans can't connect the dots in time.
Machine-speed attacks, human-speed response
Agentic AI accelerates the speed, scale, and scope of attacks, while most defenders still pivot between consoles at human speed.
OVERVIEW
The most complete cyber defense system on the market
Sophos Fusion sees everything, connects everything, and enables every product, service, data source, and analyst to operate as one. It unites Sophos and 500+ third-party control points in a single, AI-native defense system.
A single, open architecture where every control point shares data and context, and responds as one.
AI handles the velocity and volume; human judgment stays on the decisions that matter.
Every threat seen across 625,000+ organizations improves protection for all, instantly.
Not a platform. Not a stack. A Defense System.
Too often, platforms have failed to deliver on the promise, delivering a set of disparate products held together by a shared console. Data is aggregated from siloed tools after the fact. AI is a feature bolted on top. Response means running playbooks by hand across consoles, and each product's intelligence stays locked in silos. The burden of making them work as one falls to overstretched IT teams.
At Sophos, we do things differently. With Sophos Fusion, every control point and every analyst insight feeds one unified context lake in real time. AI is the architecture, not an add-on. Response is synchronized, so a detection at one layer automatically triggers action everywhere. Intelligence compounds across 625,000+ defended organizations, elevating protection for all. The difference isn't how many products you own. It's whether they can work as one.
Key components of Sophos Fusion
Sophos Fusion is the result of multiple years of architectural strategy and engineering. It’s a single architecture where every product, service, data source, and analyst operates as one. It's architected as one defense system from the ground up, and has five core components:
Control points
The security and IT tools organizations have in place, including endpoint, firewall, email, cloud, network, identity, and productivity solutions. They provide continual real-time threat intelligence and execute response actions, through a fully open architecture that integrates natively with Sophos solutions and 500+ third-party technologies.
Unified context lake
Telemetry from every control point flows into a single, shared data layer in real time. There is no aggregation delay. No separate data lake. The data is unified and connected. Every control point sees what every other control point sees, in real time.
Synchronized Security™
Synchronized Security™ is the connective tissue in Sophos Fusion, enabling the control points to work together. A detection at the endpoint triggers a response at the firewall. A compromised identity locks down access across the environment. A suspicious email triggers heightened scrutiny at every other layer. The system responds as one because the data is already unified.
Agentic autonomy with human judgment
Sophos Fusion can detect, investigate, and respond instantly without waiting for human input. But it does so within boundaries defined and continuously calibrated by our MDR analysts. This is not automation running playbooks. This is AI that reasons about novel situations, with humans owning the trust boundary.
Compounding intelligence
Every threat encountered across 625,000+ defended organizations, every edge case solved by an MDR analyst, and every new customer environment feeds back into Sophos Fusion. The system does not just get bigger. It gets smarter. The newest Sophos customer inherits the benefits of that protection instantly, shielded from every threat the system has ever seen.
Sophos Fusion: The evolution of Sophos Central
Sophos Fusion is the evolution of Sophos Central, the security system that defends 625,000+ organizations globally. Built on the Sophos AI-Native Cybersecurity Defense System architecture, Sophos Fusion marks the latest major milestone in Sophos innovation. Customers and partners will see the new name arrive in their consoles over the coming months, and all existing workflows will continue seamlessly.
Cyber resilience for the Agentic AI era
Sophos Fusion protects your organization from AI-accelerated threats that move faster than defenders can respond. Every control point shares data, context, and response in real time, so attacks that cross multiple layers are caught and contained early, even as AI accelerates their speed and scale. Agentic AI absorbs routine triage and response, so your existing team and tools achieve more without added headcount or complexity. And the same unified, retained context gives you the evidence auditors, regulators, and insurers expect, plus the visibility to see where your risks sit and whether your investments are working.
Stop attacks at machine speed
Agentic AI detects, investigates, and responds in real time, so threats are contained in seconds instead of waiting in a queue while damage spreads. What can be stopped automatically is, with human experts owning the high-risk calls.
Match multi-stage attacks with coordinated defenses
A single attack moving across email, identity, endpoint, and network is seen as one connected thread, not scattered alerts in separate consoles. Every control point shares context and responds together, so a coordinated attack meets a coordinated defense.
Empower your team for the AI era
Agentic AI absorbs the routine triage and alert noise that wears analysts down, so a lean team spends its time on higher-value, more rewarding work instead of chasing false alarms. Your people bring the judgment; the system does the heavy lifting on volume.
Get more from the tools you already own
Your existing investments, Sophos and non-Sophos alike, all contribute to one coordinated defense instead of sitting in isolation, so you get more from what you have already bought. There is no need to change what you have today: consolidate on your own timeline as contracts renew, and every tool you connect sharpens the whole.
Move from tactical operations to unified strategy
Stop firefighting across disconnected consoles and start running a strategy. Sophos Fusion connects your tools and investments into one coordinated defense, with clear visibility into where your gaps and biggest risks sit.
Simplify compliance
Unified, retained context across every layer gives you one searchable record instead of logs exported by hand from separate tools. The evidence auditors, regulators, and insurers expect is there when you need it, and the same architecture that improves protection helps you prove it.
Strongest first line of defense against AI-accelerated threats.
Agentic AI has collapsed attack timelines to seconds. Sophos solutions match AI attack velocity and sophistication, stopping AI- and human-led threats before they can impact your business. Plus, every Sophos solution is backed by the full power of the Defense System, with shared intelligence from every Sophos-defended organization improving outcomes for all.
Explore the Sophos control points that give you the strongest first line of defense:
Speak with an expert
Tell us about your environment, and a Sophos expert will show you where Sophos Fusion fits and the best place to start. Coordinated, automated response handles the routine, so your team can focus on what matters most.
Built for the Agentic AI era
See how your control points, agentic AI, and human experts operate as one to stop threats that move at machine speed.
Start where it matters most
Our experts help you find the right entry point for your environment and a plan to grow into the architecture over time.
Open by design
Connect the Sophos and third-party tools you already run so they work as one, and protect the investments you've made.
See why customers choose Sophos
Rated a "Customers' Choice" for MDR, XDR, Endpoint, Email, and Firewall
Rated the #1 Overall solution in EPP, MDR, XDR, EDR, and Firewall in the G2 Spring 2026 Reports
A Leader in the 2026 Gartner Magic Quadrant for Endpoint Protection for the 17th consecutive report
100% detection coverage in the MITRE ATT&CK Enterprise 2025 Evaluation
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Frequently asked questions
Sophos Fusion is the world’s most complete cyber defense system. Enabled by the Sophos AI-Native Cybersecurity Defense System architecture and 500+ Sophos and third-party integrations, it sees everything, connects everything, and enables your defenses to respond as one. Powered by agentic AI, with human judgment, Sophos Fusion protects organizations from AI-enabled threats that move faster than defenders can respond.
It is the architecture of Sophos Fusion: a single, open system where every Sophos and third-party control point, agentic AI, and human experts operate as one. Endpoint, firewall, email, cloud, network, and identity tools feed telemetry into a unified context lake in real time, and Synchronized Security™ coordinates response across every layer. It is not a platform or a product bundle. It is a Defense System, architected as one to deliver cyber resilience for the Agentic AI era.
Neither. Sophos Fusion is not a separate product, SKU, or platform, and there is nothing extra to license to turn it on. You access it by purchasing one or more Sophos products or services. The moment you deploy a single Sophos product, you are inside the architecture, and every product you add activates more of it.
The Defense System is the architecture; Sophos Fusion is where you experience it. Sophos Fusion is the single place you manage your Sophos products, see the full picture the system builds from every connected control point, and act on it. The Defense System is the architecture beneath it, the structural design that makes everything work as one rather than as separate tools connected after the fact.
Sophos Fusion is the evolution of Sophos Central. Sophos has provided a unified management console since 2013. It began as Sophos Cloud, protecting endpoints and servers for customers in the US and the UK. Solution and geographic coverage grew rapidly, and in 2016 the name evolved to Sophos Central to reflect its position at the heart of organizations’ cyber defenses. A decade later, Sophos rebuilt the architecture that sits beneath Sophos Central to create the Sophos AI-Native Cybersecurity Defense System. The name change to Sophos Fusion is a fitting reflection of that architectural leap.
AI is built into the architecture as its connective tissue, not added to legacy tools as a feature on the side. Agentic AI detects, investigates, and responds at machine speed, within boundaries set and continuously calibrated by human experts. These native agentic AI capabilities are delivered by Fusion AI, embedded in Sophos Fusion. Extensive AI models are built into Sophos defenses and continually refined with real-time threat intelligence.
Most platforms are a collection of products held together by a shared management console and a licensing bundle. Each tool still sees only its own domain, leaving your team to correlate alerts by hand. Sophos Fusion unifies data, context, and response across every control point in real time, so a detection at one layer automatically triggers a coordinated response at the others, with no configuration. The difference is not how many products you own. It is whether they were ever designed to work as one.
Yes. Sophos Fusion is open by design, with 500+ third-party integrations built in. Telemetry from the tools you already run feeds the same unified context lake as Sophos telemetry, so the system correlates and responds across your whole environment. Those third-party control points contribute the data that makes coordinated detection and response possible; you continue to manage them in their own consoles, while your Sophos products are managed in Sophos Fusion. Sophos Fusion also includes deep Microsoft security integration across all Microsoft plans, not just E5, so even organizations on Business Basic or Business Standard can uplevel their defenses. Your existing investments keep working, and every tool you connect makes the whole system stronger.
The system can detect, investigate, and respond without waiting for human input, but it does so within boundaries defined and continuously calibrated by Sophos MDR analysts. AI handles velocity and volume; human experts own the trust boundary and stay accountable for novel and high-risk decisions. As AI earns more trust the balance evolves, but accountability stays with people.
No. Only 1 in 10,000 organizations has a CISO. The Defense System architecture is built so organizations of any size, with or without specialist staff, can put a coordinated strategy in place. For teams that want the outcome delivered as a service, Sophos MDR provides 24/7 detection and response with expert oversight.
Unified telemetry, retained cross-layer context, multi-year data retention, and coordinated response give you the evidence auditors, regulators, and insurers expect, from one searchable record rather than logs exported by hand from separate tools. The same architecture that improves protection improves your ability to demonstrate it.
Start with the Sophos product that solves your most pressing problem, often a front-line control point like endpoint, email, firewall, or identity. The moment you deploy a single Sophos product you are inside Sophos Fusion, and you can expand over time as needs and budget allow, with each addition activating more of the architecture. Speak with a Sophos expert to map the right starting point for your environment.