Mani Sri Kumar
Security Engineer
Mani Sri Kumar is a Security Engineer at QCecuring, focused on certificate lifecycle management, PKI automation, and enterprise security infrastructure.
43 articles published
Certificate Discovery
Certificate Discovery in a Hybrid Environment: What We Typically FindOn-prem and cloud discovery challenges in hybrid environments, what scans typically reveal, common findings, blind spots, and multi-cloud certificate sprawl patterns.
11 Aug, 2026 · 05 Mins read
Certificate Lifecycle Management
What a Certificate Inventory Actually Looks Like (Before vs. After CLM)A side-by-side comparison of messy spreadsheet-based certificate tracking versus clean CLM dashboard management, including data models, metrics, and practical migration steps.
10 Aug, 2026 · 05 Mins read
Certificate Discovery
Live: Finding Expiring Certificates Across SubdomainsA technical walkthrough of subdomain enumeration combined with certificate scanning, using tools like subfinder, sslyze, and crt.sh to find expiring certificates before they cause outages.
09 Aug, 2026 · 04 Mins read
Certificate Lifecycle Management
Let's Encrypt + Certbot vs. Enterprise CLM: Where the Line IsACME and Let's Encrypt are excellent for web server TLS. They are irrelevant for internal PKI, VPN certificates, device authentication, and enterprise infrastructure.
08 Aug, 2026 · 12 Mins read
Certificate Discovery
I Scanned a Company's Public Certificates — Here's What I FoundA live demonstration of scanning public certificates via Certificate Transparency logs, revealing expired certs, weak algorithms, shadow domains, and actionable remediation steps for enterprise security teams.
08 Aug, 2026 · 04 Mins read
Certificate Lifecycle Management
AWS ACM vs. Internal CLM: They Solve Different ProblemsAWS ACM handles public cloud certificates automatically. It covers zero percent of your internal PKI, VPN certificates, device authentication, or on-premises infrastructure.
07 Aug, 2026 · 09 Mins read
Certificate Lifecycle Management
CLM vs. Spreadsheets vs. Scripts: The Real Trade-OffsSpreadsheets work until 200 certificates. Scripts work until someone leaves. CLM works at scale. Here is the honest comparison with real failure points.
06 Aug, 2026 · 10 Mins read
Certificate Lifecycle Management
How Auditors Are Starting to Ask About Certificate InventoryISO 27001, SOC 2, and PCI DSS auditors increasingly ask: show me your certificate inventory. If yours covers 30% of actual certificates, that is an audit finding.
05 Aug, 2026 · 10 Mins read
Certificate Lifecycle Management
Venafi vs. Keyfactor vs. Mid-Market CLM: What Do You Actually Need?Feature comparison of enterprise CLM platforms. Most 500-person companies need 20% of what Venafi offers. Here is how to evaluate based on your actual requirements.
05 Aug, 2026 · 09 Mins read
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