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By Fidelis Security
Most security teams did not architect their hybrid cloud environment. It grew. A legacy ERP that finance refused to migrate off-premises, a Kubernetes cluster a product team spun up in GCP without telling IT, three SaaS applications that became mission-critical before anyone ran a security assessment on them, and a VPN that was supposed to be temporary in 2020 and is still running.
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By Fidelis Security
Remote Code Execution (RCE) is one of the dangerous vulnerabilities when it comes to cyberattacks and safeguarding against them is critical. In real-world environments, attackers keep looking for unpatched software and misconfigurations to gain an opportunity for remote code execution. Once code execution is achieved, a simple technical glitch becomes an active intrusion. Proactive detection is a crucial part of any RCE defense strategy.
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By Fidelis Security
Sybil attacks are well documented in academic research. In practice, most organizations discover them too late, after the fake identities have already accumulated enough network influence to do real damage. The attack does not announce itself. It looks like growth. You see more nodes. More accounts. More participation. All of it is controlled by one attacker running a coordinated identity flood.
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By Fidelis Security
Security teams spend enormous effort deploying security controls. Endpoint protection tools. Network monitoring platforms. Identity security solutions. Detection systems. Logging platforms. The list continues to grow every year. But here’s the uncomfortable question many organizations eventually face: Are those controls actually working the way we expect? Security tools can generate alerts, dashboards, and metrics.
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By Fidelis Security
Picture a Tuesday morning at any mid-size U.S. company. A sales rep logs into Salesforce from a hotel lobby in Chicago on a personal laptop, no VPN. A developer pushes a commit from a home machine four months behind on OS patches. A finance analyst pastes a revenue spreadsheet into an AI tool that nobody in IT approved. Before 10 AM, you have three real endpoint security gaps. None of them triggered an alert. That’s hybrid work in 2026. And it’s not going away.
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By Fidelis Security
Attackers inside OT environments don’t run, they walk slowly, blend in, and map everything before they act. Here’s why cyber deception technology is built for exactly that threat.
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By Fidelis Security
Cloud environments don’t follow the same rules traditional data centers did. Workloads spin up in seconds, containers live and die within a single request cycle, serverless functions execute without a persistent footprint, and infrastructure scales faster than any manual security process can track. The security problem this creates isn’t just about scale. It’s about visibility.
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By Fidelis Security
Hybrid environments combine on-premises data centers with public cloud platforms like AWS, Azure, and GCP. This creates complex east-west traffic and north-south flows where advanced cyber threats hide in encrypted tunnels. Fidelis Network addresses this challenge with patented Deep Session Inspection (DSI) technology. DSI captures communication sessions across monitored network segments, recursively decodes nested protocols, data, and extracts network forensic evidence for hybrid networks.
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By Fidelis Security
Zero-day exploits rarely announce themselves. There is no public advisory yet. No CVE identifier. No detection signature sitting inside a rule library. The vulnerability exists quietly until someone discovers it and unfortunately attackers often discover it first. Once that happens, the exploit becomes a test of visibility. Attackers do not usually rush into environments using zero-days. They explore carefully. They check which systems respond. They observe how security tools behave.
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By Fidelis Security
Most organizations didn’t design their infrastructure to become hybrid. It happened gradually. A few workloads moved to the cloud first. Development teams adopted new services. Meanwhile, some systems stayed exactly where they were — inside internal data centers — because moving them wasn’t practical. Over time the environment expanded. Now many organizations run applications across cloud platforms, private infrastructure, and on-premise systems at the same time.
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By Fidelis Security
CVE-2026-23550 is a critical unauthenticated privilege escalation vulnerability affecting the Modular DS WordPress plugin (versions ≤ 2.5.1). With a CVSS score of 10.0, this flaw allows attackers to gain full administrator access without authentication. In this video, we break down: What CVE-2026-23550 is How the vulnerability works (technical root cause) What attackers can do after exploitation.
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By Fidelis Security
CVE-2025-59287 turns WSUS (Windows Server Update Services) into a high-value attack surface—and attackers are already abusing it. In this video, we break down how CVE-2025-59287 is exploited, what defenders should look for, and how to mitigate and detect attacks before damage spreads across your environment. What you’ll learn in this video: How attackers scan exposed WSUS servers on ports 8530 and 8531.
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By Fidelis Security
CVE-2025-59287 is a critical WSUS remote code execution (RCE) vulnerability that allows attackers to take over vulnerable Windows Server Update Services instances without authentication. With a CVSS score of 9.8, the flaw exploits unsafe deserialization, enabling remote attackers to execute arbitrary code with high impact.
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By Fidelis Security
As attack surfaces continue to expand, many security teams are finding that traditional detection methods can’t keep up. In this clip, the discussion centers on why legacy security tools struggle in modern environments — from the growing complexity of networks to the sheer volume of alerts teams are expected to investigate. When alerts are handled manually and without sufficient context, it becomes difficult to understand which threats are most critical and how quickly to respond.
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By Fidelis Security
A critical Erlang SSH vulnerability (CVE-2025-32433), also known as Chainbreaker, allows attackers to exploit pre-auth SSH behavior for remote code execution. In this video, we break down exactly what security teams need to do — from immediate mitigation to long-term prevention. What you’ll learn in this video: How to mitigate CVE-2025-32433 by upgrading Erlang OTP (27.3.3 / 26.2.5.11 / 25.3.2.20)
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By Fidelis Security
A new critical vulnerability—CVE-2025-32433, also known as the Erlang SSH Chainbreaker—allows attackers to execute commands without authentication. This video breaks down what the flaw is, how the exploit works, why it’s dangerous, and which systems are at risk. In Part 1, you’ll learn: Severity: CVSS 10.0 — Exploited in the wild Risk: Full host compromise, data theft, operational disruption.
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By Fidelis Security
Discover how Fidelis Security and Palo Alto Networks are joining forces to deliver a powerful, integrated cybersecurity solution that redefines network visibility and protection. In this collaboration, Fidelis Network enhances Palo Alto’s Prisma Access with advanced Network Detection and Response (NDR) capabilities—empowering security teams with deep network insights, automated threat detection, and unmatched visibility across hybrid environments.
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By Fidelis Security
In Part 2 of our ransomware series, we go deep into BlackSuit, the successor to Royal ransomware, and reveal how these attacks actually unfold.
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By Fidelis Security
Think you know ransomware? Think again. BlackSuit isn't just another encryption threat—it's an evolved monster that's putting both Windows AND Linux systems at serious risk. In this episode of our cybersecurity series, we break down.
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By Fidelis Security
In today's interconnected world, your endpoints are your most vulnerable targets. This video explains why every enterprise needs robust endpoint protection and introduces Fidelis Endpoint as the solution for comprehensive security. Learn how a single click from any device can compromise your entire network and why traditional security measures fail against modern, sophisticated attacks. With remote work becoming the norm, your security perimeter has expanded beyond recognition - making endpoint protection more critical than ever. Discover how Fidelis Endpoint provides.
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By Fidelis Security
In an age where digital defenses are constantly under attack, it's clear that your Active Directory serves as the battleground for your cybersecurity efforts. With Verizon's 2024 DBIR report highlighting compromised credentials as the most favored attack vector, the importance of fortifying your Active Directory cannot be understated. A breach doesn't just mean inconvenience; it signifies potential catastrophe - crippling system downtimes, critical data breaches, and organizational standstill.
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By Fidelis Security
The paper emphasizes the significance of robust cybersecurity measures, citing a startling fact: Fidelis Network comprises four types of sensors, each capable of blocking malware attacks, limiting data leakage, and locking down control and operational channels used by active attackers. This in-depth overview looks into Fidelis Network's prevention capabilities, providing useful insights into how each sensor tackles prevention, the expectations for different prevention outcomes, and sensor configuration options for optimal prevention.
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By Fidelis Security
The MITRE Engenuity ATT&CK (Adversarial Tactics, Techniques, and Common Knowledge) evaluations are focused on each product's technical ability to address known adversary behavior. These evaluations serve as an important first step in building a secure IT environment. This report will provide an overview of how to use and interpret these results, why they are important, and what else needs to be considered.
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By Fidelis Security
In today's day and age, every organization faces many cyber adversaries, and the reality is that you cannot prevent all cyber-attacks. Timely threat detection and response are the only ways to prevent the escalation and spread of attacks. This whitepaper provides insights into seeing more across your environment by aligning visibility.
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Fidelis Security is the trusted leader in cybersecurity for enterprises and government organizations, providing the #1 proactive cyber defense solutions that detect post-breach attacks over 9 times faster.
One of our innovative products, Fidelis Elevate (an open and active XDR platform) is one of the best (in their respective category) against advanced adversaries. Fidelis Elevate is the only XDR Solution that delivers Endpoint security, Network Security, Deception, and Active Directory protection in a single platform.
Our other product, Fidelis Halo which is a CNAPP platform, unifies security and compliance for all servers, containers, and cloud assets to help protect, detect, remediate, and continually improve security for public, private, hybrid, and multi-cloud environments.