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Latest posts
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16 results | Page 1 of 2
Network Security
Preventing BGP Route-Origin Mistakes During ISP and Cloud Connectivity Changes: Insights from Cisco's August 19, 2026 Security Advisories
Cisco's August 2026 security advisories underscore the critical need to secure BGP routing and protect against route-origin mistakes, especially during ISP and cloud connectivity shifts. This guide examines these advisories, explains key concepts like RPKI and ROA, and offers strategic steps for network teams.
Read articleNetwork Security
How to Triage Cisco's August 19, 2026 Security Advisories
Cisco's August 19 publication includes Critical Crosswork and Secure Workload hardening releases and a High-severity BroadWorks XXE vulnerability. This guide separates the products, facts, fixed releases, and evidence network teams need for a controlled response.
Read articleNetwork Security and Routing
Understanding DNS Cold Start and Preventing Route-Origin Mistakes in BGP and Cloud Connectivity
A deep dive into the DNS cold start problem and practical measures using RPKI and ROAs to enhance BGP route security and avoid route-origin mistakes amid connectivity changes.
Read articleNetwork Security and Routing
Securing BGP Routes During ISP and Cloud Changes: Insights from Haiwell IoT Cloud HMI Gateway and RPKI-Based Route Validation
This article guides network teams to prevent BGP route-origin mistakes amid ISP and cloud changes. Learn about Haiwell IoT Cloud HMI Gateway security issues, BGP ORIGIN attribute quirks, and how RPKI, ROA, and ASPA enhance route validation for ASN trustworthiness.
Read articleNetwork Security
Who's Running All Those Tiny RPKI Servers? Understanding the Distributed Infrastructure Securing BGP Routes
The Resource Public Key Infrastructure (RPKI) secures BGP routing by authorizing which AS can announce IP prefixes. Beyond the major Regional Internet Registries (RIRs), many small, independent publication servers run by cloud providers, ISPs, hobbyists and research institutions contribute to RPKI data. Discover who operates these tiny servers, why they exist, and their implications for BGP and RO
Read articleCybersecurity Strategy
Advance Zero Trust for AI: New Tools and Guidance to Secure AI Agents and DevSecOps
Zero Trust is key to securely adopting AI. This article explains Microsoft and CISA's latest tools and frameworks to assess and strengthen Zero Trust posture before selecting AI security platforms.
Read articleCybersecurity
Cloudflare: The Only Visionary Vendor in 2026 Gartner SASE and SSE Magic Quadrants and Its Implications for Platform Selection
Cloudflare is uniquely recognized as a Visionary in Gartner's 2026 Magic Quadrants for SASE and SSE, highlighting its innovative, unified platform and readiness for modern zero trust and hybrid work environments.
Read articleNetwork Security
FortiOS 8.0 Expands the Fortinet Security Fabric with AI Controls, Flexible SASE, and Quantum-Safe Security
FortiOS 8.0 is not just a feature update; Fortinet positions it as a Security Fabric platform release that adds AI-aware controls, flexible SASE deployment options, simplified SD-WAN, and quantum-safe protections across the network edge, cloud, and data center.
Read articlenetwork security
Addressing the Authenticated Privilege Escalation Vulnerability in Cisco Catalyst SD-WAN Controller, Manager, and Validator
Cisco Catalyst SD-WAN Controller, Manager, and Validator have a critical authenticated privilege escalation vulnerability. This article explains its impact, validation, and practical measures.
Read articleWhat to expect
Two practical network and security briefings every week.
QCS monitors trusted network and security sources, then turns material changes into practical guidance for engineers, service owners, and security teams.
Monday
Evidence-led security post
Capture high-intent readers from vulnerability, firewall, VPN, SASE, and exposure topics.
Thursday
Practical troubleshooting or cloud post
Capture engineers and buyers looking for commands, checks, tools, templates, and remediation paths.
Downloadable resources
Take a practical checklist into the next technical decision.
Checklist
Firewall Rule Cleanup Checklist
A practical checklist for rule sprawl, broad allow rules, VPN users, admin access, logs, and backups.
IT heads, firewall owners, compliance teamsGuide
Cloud Network Readiness Guide
A review guide for VPC/VNet design, hybrid VPN, routing, public exposure, flow logs, and segmentation.
Cloud teams, SaaS teams, migration ownersTemplate
Penetration Testing Scope Sheet
A scope sheet for assets, test windows, authorization, exclusions, previous findings, and retest needs.
Founders, security teams, client-facing product teamsCareer
Network Security Engineer Roadmap
A practical path across networking fundamentals, firewalls, cloud networking, SOC, ethical hacking, and projects.
Students, working professionals, corporate learnersWorksheet
Emergency Network Triage Sheet
A worksheet for outage impact, timeline, recent changes, logs, packet evidence, ISP/vendor escalation, and RCA.
IT admins, support teams, branch managersMap
SASE and Zero Trust Readiness Map
A readiness map for SD-WAN, ZTNA, SWG, CASB, FWaaS, identity, device posture, and monitoring.
Hybrid-work teams, security leaders, cloud teamsChoose a resource to review the checklist, template, or roadmap.