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Security professionals
Glexia Security Services delivers integrated cybersecurity, physical security, executive protection, and software security for government, healthcare, legal, and financial organizations — 24/7 global coverage, zero-incident track record.
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500+
Security professionals
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Security incidents
Search the published CVE library by product, vendor, weakness, severity, KEV status, and Glexia's Take.
In the Linux kernel, the following vulnerability has been resolved: mm/memory-failure: fix VM_BUG_ON_PAGE(PagePoisoned(page)) when unpoison memory When I did memory failure tests, below panic occurs: page dumped because: VM_BUG_ON_PAGE(PagePoisoned(page)) kernel BUG at include/linux/page-flags.h:616! Oops: invalid opcode: 0000 [#1] PREEMPT SMP NOPTI CPU: 3 PID: 720 Comm: bash Not tainted 6.10.0-rc1-00195-g148743902568 #40 RIP: 0010:unpoison_memory+0x2f3/0x590 RSP: 0018:ffffa57fc8787d60 EFLAGS: 00000246 RAX: 0000000000000037 RBX: 0000000000000009 RCX: ffff9be25fcdc9c8 RDX: 0000000000000000 RSI: 0000000000000027 RDI: ffff9be25fcdc9c0 RBP: 0000000000300000 R08: ffffffffb4956f88 R09: 0000000000009ffb R10: 0000000000000284 R11: ffffffffb4926fa0 R12: ffffe6b00c000000 R13: ffff9bdb453dfd00 R14: 0000000000000000 R15: fffffffffffffffe FS: 00007f08f04e4740(0000) GS:ffff9be25fcc0000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000564787a30410 CR3: 000000010d4e2000 CR4: 00000000000006f0 Call Trace: <TASK> unpoison_memory+0x2f3/0x590 simple_attr_write_xsigned.constprop.0.isra.0+0xb3/0x110 debugfs_attr_write+0x42/0x60 full_proxy_write+0x5b/0x80 vfs_write+0xd5/0x540 ksys_write+0x64/0xe0 do_syscall_64+0xb9/0x1d0 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f08f0314887 RSP: 002b:00007ffece710078 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000000000000009 RCX: 00007f08f0314887 RDX: 0000000000000009 RSI: 0000564787a30410 RDI: 0000000000000001 RBP: 0000564787a30410 R08: 000000000000fefe R09: 000000007fffffff R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000009 R13: 00007f08f041b780 R14: 00007f08f0417600 R15: 00007f08f0416a00 </TASK> Modules linked in: hwpoison_inject ---[ end trace 0000000000000000 ]--- RIP: 0010:unpoison_memory+0x2f3/0x590 RSP: 0018:ffffa57fc8787d60 EFLAGS: 00000246 RAX: 0000000000000037 RBX: 0000000000000009 RCX: ffff9be25fcdc9c8 RDX: 0000000000000000 RSI: 0000000000000027 RDI: ffff9be25fcdc9c0 RBP: 0000000000300000 R08: ffffffffb4956f88 R09: 0000000000009ffb R10: 0000000000000284 R11: ffffffffb4926fa0 R12: ffffe6b00c000000 R13: ffff9bdb453dfd00 R14: 0000000000000000 R15: fffffffffffffffe FS: 00007f08f04e4740(0000) GS:ffff9be25fcc0000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000564787a30410 CR3: 000000010d4e2000 CR4: 00000000000006f0 Kernel panic - not syncing: Fatal exception Kernel Offset: 0x31c00000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff) ---[ end Kernel panic - not syncing: Fatal exception ]--- The root cause is that unpoison_memory() tries to check the PG_HWPoison flags of an uninitialized page. So VM_BUG_ON_PAGE(PagePoisoned(page)) is triggered. This can be reproduced by below steps: 1.Offline memory block: echo offline > /sys/devices/system/memory/memory12/state 2.Get offlined memory pfn: page-types -b n -rlN 3.Write pfn to unpoison-pfn echo <pfn> > /sys/kernel/debug/hwpoison/unpoison-pfn This scenario can be identified by pfn_to_online_page() returning NULL. And ZONE_DEVICE pages are never expected, so we can simply fail if pfn_to_online_page() == NULL to fix the bug.
CVE-2025-39883 is a Linux kernel reliability flaw that can trigger a kernel panic during memory-poison recovery testing. A panic can crash the host, causing availability impact. The public record does not show active exploitation or a CVSS score.
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Cyber Insurance Questionnaire Preparation explained in practical terms for risk owners and compliance teams, with the controls, evidence, and next steps that matter most.
How To Document Backup Controls explained in practical terms for risk owners and compliance teams, with the controls, evidence, and next steps that matter most.
What Cyber Insurance Expects After Ransomware explained in practical terms for executives and incident leads, with the controls, evidence, and next steps that matter most.
What We Deliver
19 integrated capabilities spanning cyber, physical, software, and human security — designed for the most demanding environments.
01 Continuous threat monitoring, detection, and triage from our global 24/7 SOC team with sub-15-minute alert response.
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02 Contain, investigate, and recover with structured, mission-ready response playbooks and sub-2-hour engagement.
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03 Full-spectrum adversary simulation across internal, external, and human attack surfaces to validate your defenses.
Explore serviceModern identity- and policy-driven security architecture with measurable risk reduction at enterprise scale.
Explore serviceAudit-ready programs aligned with major regulatory and industry frameworks — from gap assessment to evidence automation.
Explore serviceIntegrated physical and cyber risk coverage for critical facilities, converged security planning, and guard operations.
Explore serviceProactive threat hunting and intelligence-driven defense with adversary tracking tailored to your threat landscape.
Explore serviceSecure cloud architecture, workload protection, and DevSecOps integration across AWS, Azure, and GCP environments.
Explore serviceContinuous vulnerability discovery, risk-based prioritization, and remediation tracking across your entire attack surface.
Explore serviceDiscreet, intelligence-led close protection for executives, VIPs, and high-net-worth individuals operating in elevated threat environments.
Explore serviceLicensed, vetted security officers for corporate premises, industrial sites, retail environments, and critical infrastructure.
Explore serviceEnd-to-end security planning and operations for corporate events, conferences, festivals, and high-profile gatherings.
Explore serviceStrategic security advisory for boards, CISOs, and security leaders — from program design to M&A due diligence.
Explore serviceSecure software development lifecycle support including code review, SAST/DAST, API security, and developer training.
Explore serviceEnd-to-end data privacy programs covering GDPR, CCPA, data classification, DLP, and privacy-by-design implementation.
Explore serviceEnterprise IAM strategy, implementation, and managed services covering SSO, MFA, PAM, and identity governance.
Explore serviceBehavioral security programs including phishing simulation, role-based training, and security culture transformation.
Explore serviceProtect SCADA, ICS, and operational technology across energy, manufacturing, utilities, and critical infrastructure — with safety-first, zero-disruption engagements.
Explore serviceComprehensive vendor risk management, supply chain security assessments, and continuous third-party monitoring.
Explore serviceEvery capability below is run by the same team, on the same telemetry, from the same SOC. Hover or tab through the diagram to explore.
Continuous detection and triage across every environment, staffed by analysts on four continents.
Adversary-aligned intel feeds, dark-web monitoring, and curated IOCs tuned to your sector.
On-retainer IR with 60-minute engagement SLAs, forensics, and regulator-ready reporting.
Realistic adversary simulation, purple-team exercises, and continuous control validation.
SOC 2, ISO 27001, HIPAA, PCI-DSS, and NIST programs built for auditors and operators alike.
Close protection, travel risk, residential security, and threat monitoring for principals.
Glexia operates controls at six concentric layers — from internet edge to the data core — so a single failure never becomes a breach. Each layer is managed, monitored, and measured inside a single SOC pane of glass.
Refinery scale · L0 – L3 instrumented From PLCs and DCSs on plant floors to SCADA networks across energy, water, oil & gas, and discrete manufacturing — Glexia's OT practice is led by ISA/IEC 62443-credentialed practitioners who treat safety and availability as non-negotiable. We design zones and conduits, hunt in passive-only modes, and never touch a control loop we haven't rehearsed.
Each tile is drawn from real client engagements — no marketing math, no estimated averages.
Across every regulated vertical we serve, every client engaged with our managed SOC has remained breach-free since day one. That is not luck — it is design.
See case outcomesFour-continent follow-the-sun coverage ensures any alert hits an analyst inside the SLA, every single time.
Documented dollar value of breaches, fraud, and fines averted through proactive detection and response.
SOCs in North America, EMEA, and APAC with zero hand-off gaps.
Every engagement includes a defined operating cadence, board-ready artifacts, and named accountability so progress is visible before, during, and after an incident.
A board-ready view of material security risk, business impact, owner accountability, and decisions required from leadership.
Mapped visibility across identity, endpoint, cloud, network, OT, and physical-security signals so blind spots are known and tracked.
Scenario-led rehearsals for legal, communications, technical, and executive teams before a real crisis compresses the timeline.
Control evidence, response records, vulnerability trends, and policy attestations kept current for audit, regulator, and client demands.
Explore tailored approaches based on your immediate business risk and maturity goals.
Strengthen triage, escalation, and containment workflows for high-severity incidents. Our IR team operates on retainer with guaranteed SLAs.
Roll out identity-first controls and segmented trust boundaries across your environment following NIST SP 800-207 principles.
Validate defenses through targeted adversary simulation and purple-team collaboration mapped to MITRE ATT&CK.
Deploy professional security officers, executive protection, and event security coordinated through a unified command center with real-time reporting.
Secure your applications from design through production with manual code review, automated scanning, API security, and developer training programs.
Five stages — none of them optional — repeated every quarter.
We open every engagement by mapping your crown jewels, regulatory posture, and active threat model — so every dollar we spend maps to measurable risk reduction.
Controls are engineered around your workflow, not bolted on. We choose detection coverage, identity boundaries, and response plays that your team will actually use.
Four-continent follow-the-sun analysts run your environment against curated intel feeds. Alerts hit a human inside SLA, every single time.
When an event happens — and eventually something always does — our IR team is already authorized, contracted, and rehearsed for your environment.
We report on prevented loss, MTTR trend, coverage gaps, and remediation velocity — then re-architect. Security is a program, not a purchase.
Outcome-driven security operations — not tool sales.
We measure success by risk reduction, response speed, and compliance posture — not by how many alerts we generate. Every engagement has defined KPIs tied to business outcomes.
Most security firms cover either cyber or physical. We deliver converged security programs that eliminate the gaps between digital and physical attack surfaces.
Our threat intelligence comes from real incident response engagements, not just third-party feeds. We track adversary behavior firsthand and feed it directly into detection engineering.
Real results from real engagements — every metric drawn from actual client outcomes.
A Fortune 500 financial institution with 50,000+ endpoints across 200 branch locations had no unified access control str...
A 300-bed regional hospital network faced increasing ransomware threats and needed to achieve HITRUST r2 certification w...
An AmLaw 100 law firm experienced a targeted attack on litigation data related to a high-profile case. Attorney-client p...
Specialized security programs for the most demanding regulatory environments.
Mission-critical cybersecurity and resilience support for federal, state, and local government operations.
Government & Public Sector programsHIPAA-aligned security programs to protect patient data, medical devices, and care continuity across health systems.
Healthcare & Life Sciences programsConfidentiality-first controls and rapid incident response for law firms and professional services organizations.
Legal & Professional Services programsLayered controls, continuous monitoring, and regulatory compliance for banks, insurers, and fintech organizations.
Financial Services & Banking programsOT/IT convergence security, SCADA protection, and resilience planning for energy, utilities, and infrastructure operators.
Critical Infrastructure & Energy programsProduct security, DevSecOps integration, and SOC 2 readiness for technology companies and SaaS platforms.
Technology & SaaS programsMichael transformed our entire security posture. His Zero Trust implementation across 50,000 endpoints resulted in zero breaches over three years.
Chief Information Security Officer, Fortune 500 Financial Institution
The Tiger Team response model built at Glexia Security Services is remarkable. Sub-2-hour response times with 98% client retention speaks for itself.
Managing Partner, AmLaw 100 Law Firm
The HIPAA security program prevented an estimated $7M in potential breach costs. Their healthcare cybersecurity expertise is unmatched.
Chief Medical Information Officer, 300-Bed Regional Hospital
Glexia's SOC team detected and contained a sophisticated supply chain attack within 47 minutes. Their threat intelligence integration is world-class.
VP of Information Security, Global Technology Company
The red team engagement uncovered critical vulnerabilities our internal team and two previous vendors missed. The executive debrief was the most actionable security presentation our board has ever received.
Chief Technology Officer, Regional Banking Group
Glexia's close protection team handled our CEO's travel security across three high-risk regions flawlessly. Their intelligence-led approach meant we were always ahead of potential threats.
Chief of Staff, Global Energy Corporation
After switching to Glexia for our manned guarding across 120 retail locations, shrinkage dropped 42% in the first year. Their officers are professional, well-trained, and genuinely invested in our operations.
Director of Loss Prevention, National Retail Chain
The application security review uncovered 14 critical vulnerabilities in our payment platform that three previous pen tests missed. Their manual code review capability is exceptional.
VP of Engineering, Series C Fintech Platform
Glexia managed security for our 50,000-person music festival with zero major incidents. Their crowd management expertise and emergency coordination were world-class.
Head of Operations, International Festival Group
Every engagement is instrumented to pass audit against your applicable frameworks.
We combine global 24/7 SOC operations, red-team capability, threat intelligence, compliance depth, and executive-level advisory into one operational partner. Unlike tool vendors, we deliver outcomes — measured in risk reduction, response speed, and compliance posture.
Yes. Our model spans digital, physical, and human attack surfaces so clients can run one integrated security strategy. This converged approach eliminates gaps between cyber and physical security programs.
For urgent incidents we target sub-2-hour initial response. Retainer clients receive guaranteed response SLAs. Our incident response team operates 24/7/365 with pre-staged forensic toolkits and established escalation workflows.
We support ISO 27001, SOC 2 Type I/II, HIPAA, HITRUST, GDPR, PCI-DSS, NIST CSF, CMMC, FedRAMP, NERC CIP, DORA, and more. Our compliance team can map controls across multiple frameworks simultaneously.
Absolutely. We are tool-agnostic and integrate with all major SIEM, EDR, SOAR, and cloud security platforms. Our team will assess your current stack and optimize detection coverage without requiring a rip-and-replace.
Yes. Our retainer model provides pre-negotiated rates, guaranteed response SLAs, annual readiness assessments, and tabletop exercises. Retainer hours can also be applied to proactive services like threat hunting and penetration testing.
We have deep expertise in government, healthcare, legal, financial services, critical infrastructure, and technology sectors. Each industry practice is led by specialists with direct operational experience in that sector.
We track mean time to detect (MTTD), mean time to respond (MTTR), vulnerability remediation rates, compliance posture scores, and custom KPIs aligned to your business risk tolerance. Quarterly executive reports provide trend analysis and maturity scoring.
Yes. Our Executive Protection division provides discreet, intelligence-led close protection for executives, VIPs, and high-net-worth individuals. Our CPOs are drawn from military special operations and law enforcement backgrounds with experience operating in both permissive and hostile environments globally.
We provide comprehensive physical security including manned guarding, mobile patrols, event security, crowd management, CCTV and surveillance architecture, access control systems, key holding, alarm response, and converged cyber-physical security operations. All officers are SIA-licensed and vetted to BS 7858 standards.
Absolutely. Our event security team has managed security for events with 50,000+ attendees. We provide end-to-end event security including threat assessment, crowd management, VIP protection, emergency evacuation planning, and coordination with local authorities and emergency services.
Yes. Our application security practice covers manual code review, SAST/DAST integration, API security testing, mobile app security assessment, threat modeling, and secure SDLC implementation. We also run developer security training and champions programs to embed security into engineering culture.
We build end-to-end data privacy programs covering data discovery and classification, GDPR/CCPA compliance, DLP strategy, privacy impact assessments, data subject request management, and privacy-by-design architecture. Our approach satisfies regulatory requirements while enabling business operations.
Yes. Our security awareness programs go beyond checkbox compliance to deliver measurable behavioral change. We combine phishing simulations, role-based training, executive workshops, security champion programs, and gamified learning. We track click rates, reporting rates, and behavioral metrics to demonstrate ROI.
Our team is ready to discuss your requirements and build a tailored security program.
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