Deep technical articles and research on Enterprise Security, Identity & Access Management (IAM), and Artificial Intelligence for Cybersecurity.https://mayankrajjaiswal.com/en-ushttps://mayankrajjaiswal.com/blog/firmware-upgrade-trust-on-android/https://mayankrajjaiswal.com/blog/firmware-upgrade-trust-on-android/An over-the-air firmware update is only as trustworthy as the checks around it. This post walks through the trust chain from delivery to post-update validation, and how it ties to device attestation.Sun, 18 Oct 2026 00:00:00 GMThttps://mayankrajjaiswal.com/blog/rasp-for-mobile-sdks/https://mayankrajjaiswal.com/blog/rasp-for-mobile-sdks/Runtime application self-protection adds detection at the point of use inside a mobile app. This post sets out the categories it covers, why it is bypassable, and how it fits inside a layered design.Sun, 18 Oct 2026 00:00:00 GMThttps://mayankrajjaiswal.com/blog/securing-ai-pipelines-threat-modeling/https://mayankrajjaiswal.com/blog/securing-ai-pipelines-threat-modeling/An engineering-level threat modeling analysis of security vulnerabilities in Large Language Model (LLM) integration, Retrieval-Augmented Generation (RAG) pipelines, and autonomous AI agents, with practical architectural mitigations.Sat, 29 Aug 2026 00:00:00 GMThttps://mayankrajjaiswal.com/blog/zero-trust-multi-cloud-architecture/https://mayankrajjaiswal.com/blog/zero-trust-multi-cloud-architecture/A comprehensive guide to designing and implementing Zero Trust Security architecture across AWS, Azure, and Google Cloud Platform (GCP) using identity-first principles.Fri, 28 Aug 2026 00:00:00 GMThttps://mayankrajjaiswal.com/blog/passwordless-fido2-passkeys/https://mayankrajjaiswal.com/blog/passwordless-fido2-passkeys/An architecture-level analysis of FIDO2, WebAuthn, and how multi-device credentials (passkeys) are reshaping enterprise identity security.Fri, 17 Jul 2026 00:00:00 GMThttps://mayankrajjaiswal.com/blog/future-of-iam-and-ai/https://mayankrajjaiswal.com/blog/future-of-iam-and-ai/How Artificial Intelligence is transforming Identity and Access Management through adaptive authentication and real-time threat intelligence.Thu, 16 Jul 2026 00:00:00 GMThttps://mayankrajjaiswal.com/blog/pkcs11-hsm-envelope-encryption-architecture/https://mayankrajjaiswal.com/blog/pkcs11-hsm-envelope-encryption-architecture/A deep architectural breakdown of multi-tenant Hardware Security Module (HSM) clustering, explaining PKCS#11 sessions, secure key derivation, and envelope encryption/decryption models.Tue, 10 Mar 2026 00:00:00 GMThttps://mayankrajjaiswal.com/blog/hardening-mobile-payments-tokenization-knox/https://mayankrajjaiswal.com/blog/hardening-mobile-payments-tokenization-knox/A technical review of mobile wallet security, outlining how payment tokenization, secure element/TEE key containment, and KNOX firmware-level integrity protect digital transactions.Thu, 05 Mar 2026 00:00:00 GMThttps://mayankrajjaiswal.com/blog/post-quantum-cryptography-pki-migration/https://mayankrajjaiswal.com/blog/post-quantum-cryptography-pki-migration/An in-depth analysis of migrating enterprise Public Key Infrastructures (PKI) to quantum-safe algorithms (ML-DSA, ML-KEM), addressing cryptographic agility, certificate lifecycle management, and supply chain readiness.Sun, 01 Mar 2026 00:00:00 GMT