status:SECURE
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focus:cybersecurity · devsecops · zero-trust
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certs:ISACA · ISC2 · EC-Council · IEEE
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citations:700+
Cyber Security

Defending Systems in a Threat-First World

Practical cybersecurity strategy, DevSecOps, zero-trust architecture, and ML-powered threat detection — from a Senior Director with 15+ years securing enterprise systems.

mayurrele@security:~$ whoami
Senior Director, IT & Information Security
mayurrele@security:~$ cat expertise.txt
→ Zero Trust Architecture
→ DevSecOps & SDLC Security
→ Cloud Security (AWS/Azure/GCP)
→ ML-Powered Threat Detection
→ Incident Response & IR Planning
→ Compliance: HIPAA, SOC2, ISO27001
mayurrele@security:~$
15+
Years in InfoSec
700+
Research Citations
11+
IEEE Conferences
3
Compliance Frameworks

Cybersecurity Domains

Research and practice across the full spectrum of enterprise security — from architecture to incident response.

🛡️
Zero Trust
Never trust, always verify. Identity-centric architecture, micro-segmentation, and continuous validation across cloud-native environments.
IAMZTNAMFASegmentation
🔄
DevSecOps
Shifting security left in the SDLC. SAST, DAST, container scanning, secrets management, and building security-by-default pipelines.
SASTDASTSBOMGitOps
☁️
Cloud Security
CSPM, CWPP, and posture management across AWS, Azure, and GCP. Least-privilege IAM, encryption at rest and transit, and DLP strategies.
AWSAzureCSPMCWPP
🤖
ML Threat Detection
Behavioral analytics, anomaly detection, and using machine learning to separate noise from signal in high-volume security telemetry.
UEBASIEMSOARML
📋
Compliance & GRC
HIPAA, SOC 2, ISO 27001, and NIST frameworks. Risk management, audit preparation, and building compliance programs that don't slow engineering.
HIPAASOC2ISO27001NIST
🚨
Incident Response
IR planning, tabletop exercises, forensics, and post-incident analysis. Building response capabilities before you need them — not after.
DFIRForensicsPlaybooksTTP

Security Intelligence

Practical cybersecurity writing — strategy, tools, and lessons from real enterprise environments.


Standards & Frameworks

Security programs built on proven frameworks — not invented from scratch.

NIST CSF
NIST SP 800-53
Cybersecurity Framework — the universal language of risk management
The NIST Cybersecurity Framework provides a common taxonomy for organizing security activities around five concurrent functions. It's vendor-neutral, scalable from SMB to enterprise, and maps cleanly onto existing compliance obligations (HIPAA, SOC 2, ISO). In practice, it's the most useful board-level communication tool available to security leaders — translating technical risk into business risk language.
Identify Protect Detect Respond Recover Govern (CSF 2.0)
Applied at Parachute Health: Used as the primary risk assessment and program maturity model. CSF tiers drive quarterly security roadmap prioritization and executive reporting.
ISO 27001
ISO/IEC 27001:2022
Information Security Management System — the global certification standard
ISO 27001 defines requirements for establishing, implementing, maintaining, and continually improving an ISMS. Unlike compliance checklists, it mandates a risk treatment process — organizations must identify risks, select controls from Annex A (93 controls across 4 themes), and accept residual risk formally. The 2022 revision added 11 new controls covering threat intelligence, cloud security, and data masking. Certification requires an accredited third-party audit in two stages.
Organizational Controls People Controls Physical Controls Technological Controls
Key insight: ISO 27001 certification signals mature security governance to enterprise customers and partners — particularly valuable in healthcare SaaS where vendor risk reviews are rigorous.
SOC 2
AICPA TSC 2017
Trust Services Criteria — the SaaS industry's baseline security proof
SOC 2 examines controls relevant to security, availability, processing integrity, confidentiality, and privacy. Type I reports on control design at a point in time; Type II reports on operating effectiveness over a period (typically 6–12 months). The Security Trust Services Criterion (CC series) is mandatory — the other four are optional based on customer commitments. Common failure areas include change management, logical access reviews, and vendor management gaps.
Security (CC) Availability (A) Confidentiality (C) Processing Integrity (PI) Privacy (P)
Applied at Parachute Health: Managed SOC 2 Type II audit preparation including evidence collection automation, control mapping to HIPAA, and remediation of findings across access control and monitoring domains.
HIPAA
45 CFR Parts 160 & 164
Healthcare data privacy & security — protecting PHI across the care ecosystem
HIPAA's Security Rule requires administrative, physical, and technical safeguards for electronic PHI (ePHI). Required vs. addressable specifications create flexibility but also confusion — "addressable" doesn't mean optional; it means implement or document why an equivalent alternative was chosen. The Breach Notification Rule mandates reporting within 60 days of discovery, with OCR penalties reaching $1.9M per violation category per year. In digital health, HIPAA compliance must extend to APIs, mobile apps, and third-party integrations.
Privacy Rule Security Rule Breach Notification Omnibus Rule BAA Management
Research context: Published work on AI and PHI handling in cloud environments — examining how ML inference pipelines must be architected to avoid unintended PHI exposure at model training and serving layers.
MITRE ATT&CK
v15 · 14 Tactics
Adversary tactics, techniques & procedures — how attackers actually operate
ATT&CK is a living knowledge base of real-world adversary behavior, organized by tactic (the why) and technique (the how). It's used for threat modeling, detection engineering, red team planning, and SOC gap analysis. The Enterprise matrix covers 14 tactics and 200+ techniques across Windows, macOS, Linux, and cloud platforms. Navigator layers allow teams to visualize detection coverage vs. technique prevalence — making it the most practical tool for prioritizing detection engineering work.
Reconnaissance Initial Access Execution Persistence Privilege Escalation Defense Evasion Lateral Movement Exfiltration
Research application: Used ATT&CK technique mapping in ML-based threat detection research — training classifiers on technique-labeled telemetry to improve detection specificity over signature-based approaches.
CIS Controls
v8 · 18 Controls
Prioritized security best practices — actionable defense from the ground up
The CIS Controls provide 18 prioritized safeguards mapped by Implementation Group (IG1–IG3), making them practical for any organization size. IG1 covers essential cyber hygiene (56 safeguards) — if you do nothing else, do these. Controls are mapped to NIST CSF, ISO 27001, and MITRE ATT&CK, making them an effective translation layer between frameworks. CIS Benchmarks (800+ configuration guidelines) complement the Controls by providing specific hardening guidance for OS, cloud, and application layers.
Asset Inventory Data Protection Secure Configuration Account Management Audit Log Management Vulnerability Management Incident Response
Practical use: CIS Controls IG2 serves as the baseline security program template for mid-market healthcare organizations — providing a defensible, audit-ready control set without the overhead of full ISO certification.

Essential Security Books

The books that shaped how I think about cybersecurity — from attack craft to architecture to the intersection of AI and defense. Click any card to find it on Amazon.

🏗️
Security Engineering
Ross Anderson · 3rd Ed. 2020
Foundational
The definitive security textbook — 1,200+ pages covering cryptography, protocols, psychology of security, access control, distributed systems, and economics of security. Anderson's central thesis: security failures are usually not technical failures but system design failures. The third edition adds extensive coverage of AI security, machine learning attacks, and the security implications of IoT at scale. Freely available online.
Why read it: Every security architect should own this. Anderson's depth on why systems fail — and the economic incentives that perpetuate failures — is unmatched.
amazon find
🛡️
Threat Modeling: Designing for Security
Adam Shostack · 2014
Architecture
Shostack wrote the book — literally — on threat modeling. He frames the practice around four questions: What are we building? What can go wrong? What are we going to do about it? Did we do a good enough job? The STRIDE methodology (Spoofing, Tampering, Repudiation, Info Disclosure, DoS, Elevation of Privilege) is introduced here and remains the most widely deployed threat modeling framework in enterprise security teams.
Why read it: Security by design, not security as an afterthought. Threat modeling is the single highest-leverage activity in secure software development — this is the canonical reference.
amazon find
🌐
Zero Trust Networks
Evan Gilman & Doug Barth · 2017
Architecture
The foundational text on zero trust architecture before the term became a marketing buzzword. Gilman and Barth lay out the core principles: networks are always hostile, external and internal threats exist at all times, locality is not sufficient for trust, and every device, user, and flow must be authenticated and authorized. The book predates BeyondCorp's public case studies but aligns closely with what Google shipped internally.
Why read it: If you're building or evaluating a zero trust program, this is the conceptual foundation that separates real implementations from vendor-washed perimeter security.
amazon find
⚠️
This Is How They Tell Me the World Ends
Nicole Perlroth · 2021
Cyber Warfare
NYT cybersecurity reporter Perlroth spent years investigating the global zero-day market — the black, grey, and white markets for undisclosed software vulnerabilities. The book traces how governments, brokers, and criminals buy and stockpile exploits, and how this market created the infrastructure for nation-state cyberattacks. WannaCry, NotPetya, and Stuxnet all connect back to vulnerabilities that were known, traded, and weaponized before the public ever knew.
Why read it: The best investigative account of how cyber weapons actually work in the real world — required reading for anyone in security policy or critical infrastructure protection.
amazon find
🔒
Sandworm
Andy Greenberg · 2019
Cyber Warfare
Greenberg's account of Sandworm — the Russian GRU hacking unit responsible for the most destructive cyberattacks in history. The book traces their operations from Ukrainian power grid attacks (2015–2016) through NotPetya ($10B in damages globally) to Olympic Destroyer. It's both a technical post-mortem and a geopolitical narrative, showing how nation-state cyber operations have become instruments of warfare with catastrophic physical consequences.
Why read it: NotPetya remains the most consequential cyberattack ever deployed. Understanding how and why it happened is essential for any security practitioner thinking about supply chain and OT risk.
amazon find
🤖
AI and Machine Learning for Cybersecurity
Various · O'Reilly · 2022
AI + Security
A practitioner-focused collection covering anomaly detection, intrusion detection systems, malware classification, phishing detection, and adversarial attacks on ML models. Covers both using ML to defend (UEBA, NTA, threat hunting) and adversarial ML — how attackers evade classifiers, poison training data, and exploit model uncertainty. The adversarial ML section is particularly relevant as AI-powered security tools proliferate.
Why read it: The dual-use nature of ML in security — both offense and defense use the same techniques. Understanding adversarial attacks on your own models is as important as building them.
amazon find
🔍
The Art of Intrusion
Kevin Mitnick · 2005
Attack Craft
Mitnick's second book collects real-world intrusion stories from hackers who actually broke in. Each chapter is a case study: how social engineering bypasses technical controls, how physical security failures enable digital compromise, how attackers think in terms of chains of trust rather than individual vulnerabilities. Older in date but timeless in lesson — the attack patterns described are still effective variants in use today.
Why read it: Defenders who haven't thought like attackers are missing half the picture. Mitnick's storytelling makes the offensive mindset accessible without requiring deep technical background.
amazon find
🧠
Cybersecurity and Cyberwar
P.W. Singer & Allan Friedman · 2014
Policy & Strategy
Written in Q&A format, this book answers the questions that non-technical executives, policy makers, and security-curious professionals actually ask: How does the internet work? What is a cyberattack? Who are the actors? What can governments do? Singer and Friedman cut through jargon without sacrificing accuracy. Still one of the best bridges between the technical reality of cybersecurity and the policy world that governs it.
Why read it: Invaluable for explaining cybersecurity to boards, executives, and policy stakeholders. The accessible format makes it a great recommendation for non-technical colleagues who need the context.
amazon find
📡
Applied Network Security Monitoring
Chris Sanders & Jason Smith · 2013
SOC / Detection
The practitioner's handbook for building and operating a network security monitoring capability. Covers collection (full packet capture, flow data, log aggregation), detection (signature-based, anomaly, reputation), and analysis (network forensics, alert triage). Even as the technology has evolved (Zeek, Elastic SIEM), the methodology remains the most operationally sound framework for building a detection-first SOC program.
Why read it: Detection engineering is underrated relative to prevention tooling. This book makes the case — and provides the playbook — for building a program that assumes breach and detects fast.
amazon find

Mayur Rele
Senior Director, IT & Information Security
15+ years securing enterprise systems across healthcare, e-commerce, and technology. Currently leading IT and security at Parachute Health. IEEE researcher with 700+ citations on cybersecurity and AI topics.

The Security Practitioner

Security isn't a product you buy — it's a practice you build. My approach is rooted in threat modeling, architectural thinking, and the understanding that compliance and security are not the same thing.

"Compliance is the residue of good security — not the goal itself."

My research spans cybersecurity in DevOps environments, AI-powered threat detection, IoT security, and healthcare data protection. I've published across IEEE conferences and peer-reviewed journals, with work cited 700+ times across the academic and practitioner community.

I also serve as a judge for the Globee Cybersecurity Awards, Stevie Awards, and DevOps Excellence Awards — reviewing the security industry's best work each year.

Security Conversations Welcome

Speaking, research collaboration, security architecture review, or just a conversation about the threat landscape — reach out.