What’s New in NFA v26.03: Automated Threat Mitigation, Advanced Filtering, and Entra SSO

Noction Flow Analyzer v26.03 introduces Network Anomaly and DDoS detection, automated FlowSpec mitigation options, Microsoft Entra single sign-on, and additional controls for sharing and analyzing network data. The release also expands flow-threshold configuration, BGP lookup capabilities, and SNMP visualization options. Building on the BGP diagnostics and threshold-monitoring updates introduced in v26.02, this version adds operational tools for network engineers, NOC teams, and service providers that use NFA for traffic analysis and incident investigation.

Network Anomaly and DDoS Detection with FlowSpec Mitigation

NFA now supports network threat and DDoS detection using multiple attack detection algorithms. Users can configure anomaly detection rules, review current anomaly feeds and historical activity, and exclude selected IP addresses through a whitelist. Detected threats can be addressed using FlowSpec mitigation actions for traffic dropping, rate limiting, and IPv4/IPv6 traffic redirection. NFA supports detection of the following anomaly types: DNS, NTP, SNMP, and memcached amplification attacks; SSH, UDP, TCP SYN, TCP ACK, and TCP ACK PUSH floods; HTTP/HTTPS, smurf, CLDAP, and SSDP flood attacks. Read the documentation →

NFA 26.03
Noction Flow Analyzer v26.03 introduces Network Anomaly and DDoS detection, automated FlowSpec mitigation options, Microsoft Entra single sign-on, and additional controls for sharing and analyzing network data. Continue reading

Cloudflare is the only vendor named a Visionary in 2026 SASE and SSE reports

We're honored to announce that Cloudflare is the only vendor that has been recognized as a Visionary in both the 2026 Gartner® Magic Quadrant™ for SASE Platforms and the 2026 Gartner® Magic Quadrant™ for Security Service Edge reports. To us, this validates our architectural choices and, more importantly, reflects the trust our customers place in us to navigate an increasingly complex security landscape.

To every customer who shared feedback with Gartner, discussed your roadmap challenges with our team, and pushed us to build better solutions: thank you. This recognition belongs to you as much as it does to us.

The SASE (Secure Access Service Edge) and SSE (Security Service Edge) markets are at an inflection point. Many organizations started with the SSE as the “security half” of SASE to tackle their remote work challenges during the pandemic. More recently, SASE has grown more prominent given the rise in return-to-office work mandates. Now, as AI agents, post-quantum threats, and the sprawl of shadow apps reshape enterprise security, organizations need platforms that can adapt at the speed of change, not vendors locked into yesterday's architecture. That’s exactly where Cloudflare One, our agile SASE platform, comes in.

The market gap and where SASE Continue reading

VM Migration – What Happens to Your NSX Segments in Kubernetes?

Planning a migration off NSX usually starts with a networking conversation. Segments, VLANs, routing topology and BGP peering are not things that map cleanly to Kubernetes-native constructs the way the NSX distributed firewall maps to Calico’s tiered microsegmentation. NSX virtualizes the network layer in ways that Kubernetes doesn’t replicate by default. There is no native concept of a Layer 2 segment or VLAN, for instance. Pods simply receive IP addresses on a flat, routed network, with no built-in way to give a workload L2 adjacency to external devices or attach it to a specific broadcast domain.

This is usually where teams start to worry. They can see exactly what NSX is doing for them, but they have no obvious Kubernetes equivalent to point at. The natural question becomes how they will run the networking they depend on once their VMs live in a cluster.

Achieving the same routing, isolation, and connectivity outcomes, however, is well within reach. It just requires a bit of a mental shift.

The rest of this blog will cover the details of what that mental shift entails.

Each NSX construct and the Calico building block that takes over its job.
Each NSX construct and the Calico building block that takes over its job.

How NSX handles segments

Before we Continue reading

TCG081: Network Automation Forum: From Simple Survey to Global Community

William Collins is joined by guest co-host Eric Chou as well as Network Automation Forum founders Scott Robohn and Chris Grundemann to discuss how their community emerged from a simple question: Why haven’t we seen full adoption of network automation, yet? They discuss the growth of AutoCon and how its practitioner-focused, vendor-neutral approach has fostered... Read more »

The Agent Access Model

For the last twelve years, enterprise security has moved away from trusting the network. BeyondCorp made the case that a request's origin, inside the corporate perimeter or on the open Internet, should not decide whether it is allowed. Identity and device health should. That model won: it now underpins much of Zero Trust.

Google’s BeyondCorp assumed a specific principal: a human at a device, acting at human speed. Organizations are now deploying agents, software principals that reason, act, and reach into systems on our behalf. A task-scoped agent run is ephemeral. It ends when its work is done. A long-lived agent service may handle many such tasks and move data far faster than a person.

The controls we built for humans do not fail loudly when we point them at agents. They fail quietly, by granting too much, seeing too little, and trusting for too long.

This paper proposes an access model for agents: the Agent Access Model (AAM). We describe the model and show how its components can be built. We then walk through a concrete example and separate the single-principal controls available today from the harder problem of multiplayer access control.

Much of the current work tries Continue reading

How we’re rethinking work at Cloudflare with Cloudflare OS

Sam Rhea is Cloudflare’s Chief Information Officer.

I knew we had a problem about six months ago when a member of our sales organization reached out to me asking for API keys. Keys plural. They used AI to build what they described as a SuperApp that would transform our go-to-market teams. All they needed was production access to about a dozen systems of record at Cloudflare and admin permissions to a deployment pipeline to make it work.

We had taken a fairly cautious approach to rolling out AI at Cloudflare during 2025. We deployed informational chat applications and tinkered with using AI to help write some boilerplate code, but we felt that the technology was not ready to change how we work.

And then, over the course of a few days at the end of last year, better models and more powerful harnesses changed that calculus. AI agents could do things, and they could do them well. Hundreds of team members across Cloudflare, in technical and non-technical roles, spent the quieter weeks around the New Year experimenting with new tools that made it easier than ever to build.

That sales team member building their SuperApp was just the first in Continue reading

Cloudflare OS: an open platform for agents, apps, and work

Every organization has a mission, a reason for being. Organizations pass that mission — along with their terminology, procedures, systems, standards, and ways of working — to their people. People, in turn, take this context together with their own experience and work towards the mission.

Work can take many forms, from code, to documents and slides, to relationships, to outcomes in the physical world.

Some of these are straightforward: code either runs or it doesn’t. Agents have been using this feedback loop to produce code that “works” for developers over the last couple of years. But what about the rest of us?

Bringing the same leverage to the rest of the organization is a harder problem. Agents need to understand the context of the company and be able to reach the systems people use to do their jobs. They need to turn that context and access into work that moves the organization towards its mission.

That’s why we created Cloudflare OS. It gives every person an agent and workspace built around their company: how it works, what it knows, and the systems it relies on.

In May of this year, we gave every person at Cloudflare access to the first Continue reading

WriteGuard: fine-grained controls for MCP Servers

Let’s imagine the Case of the Endlessly Closing Tickets. 

The bug tickets start closing at noon. Nobody thinks much of it. Joe moved a few tickets to Done, and Joe is having a productive afternoon. Then the pace picks up. By 4 p.m., thousands of tickets have been closed, all by Joe.

Joe is a good engineer. Joe is not a thousand-tickets-an-hour engineer.

We learn that he has several background agents running across three concurrent sessions. It takes half an hour to find the one at fault: a cleanup task with a prompt that was a little too broad.

Once we’ve stopped the agent, we need to repair the state of the ticketing system. Joe has also been legitimately closing tickets by hand that afternoon. The system records all those changes under Joe regardless of whether it was him or his agent, and the network logs do not distinguish one agent session from another. From the outside, the actions look identical.

The example above is relatively low-stakes, but we can all imagine, or read about, much more destructive cases. An agent with access to contract software could amend an agreement. An agent wreaking havoc in a Continue reading

Catching rogue AI behavior with identity-aware analytics

When you look at your AI bill, it can be hard to tell if anything is amiss. You first need a baseline so you can see what has changed, whether it’s an agent that’s gone wild or an employee whose usage has spiked 10x. Being able to spot those shifts lets you start investigating, and so far, it’s been hard to see them.

Knowing who is doing what with AI is one of the key challenges organizations are confronting right now. One report from Stanford University found that 59% of organizations said knowledge gaps were their biggest obstacle to responsible AI governance. 

This is a security problem as much as a financial one. Solving these issues takes two things: a verified identity on every request (so a spike has a name behind it), and a picture of what normal looks like for that identity. Today we're announcing both.

Identity-aware AI Gateway with Cloudflare Access is now in open beta, and User Insights is generally available to every AI Gateway customer at no additional cost. Together they turn the traffic already flowing through AI Gateway into a behavioral baseline for every person and agent using it, and identify the ones Continue reading

Minisforum MS-A2 Review for Network Labs/Homelab

Minisforum MS-A2 Review for Network Labs/Homelab

In my previous blog post, I covered setting up network labs on a budget using used mini PCs, and I saw good interest in that post. So, I thought I would write another one sharing my experience using the Minisforum MS-A2 for network labs. As of writing this post, the MS-A2 costs £1160 with an AMD Ryzen 9 9955HX, 32GB of DDR5 RAM, and 1TB of storage. You can buy the barebone version (without RAM and storage) for £727 on Amazon. I bought the 32GB version + 1TB of RAM.

I would have bought the 64GB RAM version (I'd recommend 64GB for anyone buying) if that was available on Amazon, but that option was only available on the Minisforum website, and it ships from their HK warehouse and takes a few days. So I went with Amazon, which came with a single 32GB stick, and then added another 32GB stick myself (RAM costs a fortune as of writing this post 😢)

  • CPU options - AMD Ryzen 9 9955HX / 9 7945HX / 7 7745HX. I went with the 9955HX (16c/32t) for extra headroom running multiple labs at once.
  • RAM - Dual channel DDR5-5600MHz, up to 96GB. Plenty for running Continue reading

PP120: News Roundup—AI Giants Praise Open Weight Models, Attackers Capture Captive Portals, a Tricky Mac Attack, and More

Packet Protector uncorks another News Roundup! We talk about attackers capturing hotels’ captive portals to steal Microsoft credentials, and the OpenAI-attacking-Hugging Face story and how it ties into a broader industry effort to keep the US government from blocking access to open weight AI models from China. Nvidia and the Linux Foundation launch separate AI... Read more »

HS139: When “One Cloud to Rule Them All” is NOT the Answer: Regionalization

IT folks spent a lot of time in the last 20 years creating globe-spanning infrastructures that maximize performance while minimizing the number of data centers or cloud instances they operate. More recently, the steady rise of regionalized data sovereignty requirements has created counter-pressure. AI regulations are now adding to that pressure to ditch a single... Read more »

The Agent Development Lifecycle has arrived on Cloudflare

Engineering managers spent the past few decades figuring out ways for many programmers to work together on a shared codebase. This work dates all the way back to the “Systems Development Lifecycle” (RAND, 1975) - today commonly referred to as the “Software Development Lifecycle” (SDLC), which defines the following phases:

  • Plan
  • Design
  • Implement
  • Test
  • Deploy
  • Maintain
  • Retire

AI has made the step that was previously the slowest and most expensive — implementation — the fastest and cheapest. That, in turn, has had an impact downstream: overwhelming the people responsible for all the other steps in the SDLC. This ranges from open-source maintainers bombarded with thousands of pull requests and issues, to production engineers trying to save production from falling over as the rate of software delivery increases orders of magnitude.

We are all trying to save our systems, our customers, and ourselves from slop.

The answer — paradoxically — is to empower agents to do more. It’s only fair! You’d never let an engineer on your team write code, expect someone else to validate it, merge it, deploy it, hold the pager in production, and triage incoming bugs. But that’s what most companies are doing right now with agents. Continue reading

Run CI/CD for millions of repos — on your platform, on Cloudflare

We are moving toward a world in which you can store, build, test, and deploy your code fully on Cloudflare. We built the first piece with Artifacts, versioned code storage that scales to millions of repos. 

We have stitched the store, build, and deploy steps together with the CI SDK, built on Cloudflare Workflows, so that you can run your continuous integration (CI) pipeline on Cloudflare. You can send artifact push events directly to your Workflow, triggering an instance of its execution — a CI job, essentially — through a new events field in your wrangler configuration file. 

Then, directly from the Workflow with @cloudflare/ci installed, you can:

  • Automate builds: compile code from your Artifacts repo in a safe, isolated environment 
  • Run linters and typechecks: enforce code style, catch type errors, and flag any potential issues
  • Cache dependencies: run your install once and cache dependencies across steps in the CI job
  • Execute unit tests: verify that each piece of your code works as expected
  • Self-heal: integrate an AI review agent to catch broken steps in your build and push commits to fix 
  • Deploy conditionally: automatically deploy your code, only if your build step is successful

Continue reading

How Cloudflare enforces engineering standards using AI

Over the past four months, our AI code reviewer has flagged nearly a quarter of a million deviations from Cloudflare engineering standards (what we’ll call “violations” in this post) and blocked 16,000 merges. Our spec reviewer agent has evaluated close to 600 technical designs against the same standards before implementation began. Both systems draw from the Cloudflare Codex, a shared source of engineering guidance built for people and agents. This post explains why we built the Codex, how it supports the engineering lifecycle, and what we plan to do next.

Before the Codex (which we briefly introduced in a previous post about our AI engineering stack), developer guidance at Cloudflare lived in many places: formal documentation, repository files, chat threads, and the accumulated knowledge of individual engineers. Engineers often spent too much time searching for guidance instead of working on the problem they were trying to solve. Even after finding an answer, they could not always tell whether it was current, authoritative, or applicable to their situation.

As Cloudflare grew, that model became increasingly difficult to sustain. No engineer could read every standard, and reviewers could not reliably check every requirement. Institutional knowledge became harder to recover when people moved Continue reading

Introducing: Cloudflare Agents

We're bringing together everything you need to deploy and manage hosted agents on Cloudflare, starting with observability.

We've spent the last nine years building a developer platform, and agents are the perfect use case. They're really just another type of application, but what you need to build them — model access, durable runtime, orchestration, sandboxed execution, persistent storage — happens to be exactly what we've already built.

Now, we’re making it even easier to deploy and manage your agents on Cloudflare. Cloudflare Agents brings all of your deployed agent sessions into a single experience, surfacing key information and insights into how your agents perform at scale.

First stop: agent tracing

We are launching agent tracing for more direct visibility and insight into agent behavior. With agent-aware traces, you can now understand exactly what your agent is doing and what it costs: every model call, tool execution, and token is measured and presented here. Agent tracing launches today with support for OpenTelemetry-compatible agent harnesses including Think, Flue, and AI SDK, and more.

Agent traces are just the beginning. Once you have observability into your agent’s thought process and real-world behavior, you can start to Continue reading

How we built a software factory to drive Astro’s GitHub issue count to zero

Everyone is talking about software factories: the idea that AI agents can be assembled into a pipeline that produces working software on their own, the way a factory turns raw materials into finished goods. There’s endless debate over whether that’s actually possible, how far the automation can really go, and whether the “loops” people are demoing count for anything. Some have already written them off as a failure.

Running alongside that is a quieter, more worried conversation: open source maintainers are burning out. The AI boom has made it nearly free to generate issues, pull requests, and security reports, and enormously expensive for a maintainer to read through them all. The old ways of keeping a project healthy are buckling under the volume.

Everyone has a hot take on both topics. We think we have something rarer to offer: real results. For the past several months we’ve run an automated triage pipeline on the Astro repository. It reads incoming bug reports, reproduces them in sandboxes, diagnoses the root cause, and ships preview releases for the reporter to verify. The engine underneath it grew into Flue, an open framework for building this kind of agent automation, and it’s the same Continue reading

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