Continuously and automatically scan all of your internet-facing assets for the vulnerabilities attackers target, with a team of offensive security experts to guide you every step of the way.
At Halo Security, we transform how organizations manage their external attack surface. Our next-generation EASM platform delivers complete visibility into your internet-facing assets, automated discovery, continuous vulnerability scanning, and penetration-testing insights—all paired with expert remediation guidance.
As AI accelerates attacks and expands exposure across cloud, SaaS, APIs, and shadow IT, Halo helps you quickly identify and eliminate vulnerabilities for fast, measurable, and affordable risk reduction.
Discover assets, fast. Our automated EASM solution identifies and catalogs known and unknown domains, hostnames, and IP addresses exposed to the internet. Here’s a quick look at our platform.
Halo is a trusted EASM solution for organizations that need real results—not just more findings. Security teams at Experian, Omaha Steaks, Penske, Dollar Tree, Mrs. Fields, and many other leading brands rely on Halo. Read a case study on how one Halo EASM customer cut their risk in half in a few months!
Halo is rated 4.6 / 5 stars based on more than 150 independent customer reviews across Gartner Peer Insights and G2.
Trusted by customers. Proven in practice. Built to deliver outcomes.
Good portal navigation, single pane of glass for multiple services, very efficient support, effective PCI ASV scanning & pen testing.
Read more on G2I like Halo Security because it's easy to use and has affordable pricing. The affordability means we can actually afford it since it's not one of the more expensive options on the market. The ease of use saves us the learning curve of having to spend time figuring out how to use it. Also, the initial setup was very easy.
Read more on G2The dashboards are easy to navigate and help to quickly identify problems.
Read more on G2There one on one support with their security experts is the best thing. Very helpful and knowledgeable. They walk you through every step, they are proactive and make its easy to use and understand the UI. I think what they offer is well worth the price, couldn't find anything else out there for the same value. Scans are detailed, integrations are easy.
Read more on G2I really appreciate Halo Security's solid scans that consistently catch things that matter. The standout feature for me is the detailed and easy-to-understand reports that provide clear actionable guidance. This has helped us stay more proactive about improving our security instead of just reacting to issues. Their support team is also great—responsive, knowledgeable, and easy to work with.
Read more on G2Halo Security's user-friendly platform delivers lightning-fast visibility into our entire external attack surface—it's like having an attacker's playbook in reverse, spotting risks across clouds and third-parties in seconds without the hassle of manual scans. The straightforward remediation guidance and real-time alerts have saved our team countless hours.
Read more on G2Attackers can now turn exposed vulnerabilities into exploits in minutes. Halo continuously maps your external attack surface, identifying unknown domains so you can see what’s exposed before it’s weaponized. Halo is a purpose-built, full-spectrum EASM platform with continuous, comprehensive external attack surface scanning.
Halo goes beyond discovery with risk-based findings that are grouped, de-duplicated, and tracked through remediation—so issues get fixed, not rediscovered. We combine agentless scanning and single-pane-of-glass visibility with cloud connectors and workflow integrations that automatically keep asset data current and actionable across the tools your team already uses.
With Halo, you're not handed a tool and left alone. You gain a partner focused on outcomes. Most EASM solutions stop at alerts. We include expert human remediation guidance to help validate findings and offer advice, so you have the support you need to deliver rapid risk reduction and a stronger security posture.
Halo's EASM solution is fast and affordable, with no enterprise bloat and expert help when you need it. Our Halo EASM solution gives you the support you need for today's lean teams to deliver faster time to value, lower total cost, and measurable risk reduction, without adding headcount.
Let us show you a complete picture of your external attack surface.
Automatically discover and catalog internet-facing assets that belong to your organization.
Identify, prioritize, and remediate vulnerabilities and issues across your internet-facing assets.
Understand the risk posture of subsidiaries and organizational units.
Get immediate visibility into the risk posture of potential M&A targets.
Gain continuous and consistent visibility into the external risk posture of your organization.
Obtain PCI compliance reports from an Approved Scanning Vendor.
External attack surface management (EASM) helps you find and monitor everything your organization exposes to the internet—websites, APIs, cloud services, servers, third-party technologies, and more.
External attack surface management is critical because environments change faster than mid-market and lean teams can track manually. EASM provides continuous visibility, so risks don’t go unnoticed as your business grows.
No. Halo’s external attack surface management platform is designed to help you skip complex, overkill solutions, and get right to risk reduction. Our solution is designed for fast, efficient risk reduction and even includes access to experienced security practitioners for guidance, so it’s perfect for mid-market and lean IT teams.
We provide automated asset discovery, continuous monitoring, and visibility without agents or complex configuration. With flexible workflows and task assignments, your team can quickly track remediation status and stay informed of any attack surface changes.
Most organizations begin seeing results within days. Halo’s agentless external attack surface management platform starts discovering internet-facing assets as soon as it’s deployed—no software installation required.
This fast time-to-value makes it practical for mid-market and SMB teams that want rapid risk reduction.
Traditional vulnerability scanners focus on known assets. External attack surface management goes further by continuously discovering unknown and forgotten assets, monitoring changes, and providing ongoing visibility into everything exposed to the internet.
Halo is the next generation of vulnerability scanning, and we combine external attack surface management with penetration testing to give teams a more complete picture of exposure.
Yes. Halo’s external attack surface management platform continuously monitors cloud-exposed assets across AWS, Azure, and other environments, as well as SaaS applications, APIs, and third-party technologies.
This is especially valuable for mid-market organizations and lean teams with multiple clouds and quickly changing environments.
Yes. Halo Security is a PCI ASV (Approved Scanning Vendor), authorized to perform external vulnerability scans required for PCI DSS compliance.
Halo’s external attack surface management platform helps organizations identify and monitor internet-facing assets, while PCI ASV scans validate compliance requirements—so mid-market teams can manage security and PCI obligations in one place, without separate tools or vendors. Learn more.
Halo simplifies external attack surface management by consolidating discovery, monitoring, and testing into a single platform. Instead of juggling tools, spreadsheets, and manual reviews, teams get a centralized view of exposure that stays current automatically.
This helps mid-market teams maintain strong security without adding headcount.
Not at all. Halo is also used by IT, compliance, and risk teams to understand exposure, support audits, and validate changes during initiatives like cloud migrations or acquisitions.
Yes, we have straightforward pricing that even includes expert human remediation guidance when you need it. Halo is built to be accessible for mid-market and SMB organizations that need strong external visibility without enterprise pricing or operational burden. The platform delivers meaningful coverage and value without requiring large budgets or specialized staffing.
Halo is used by growing organizations across retail, ecommerce, healthcare, SaaS, financial services, and more—especially teams that need better visibility into internet-facing assets without adding complexity.
If your organization:
…then external attack surface management can help you understand and manage exposure more effectively.
Seeing your attack surface clearly is the first step toward protecting it.
Getting started is simple. You can request a demo or start a free trial to see how Halo discovers and monitors your external attack surface in real time.