CERT-In Aligned · ISO 27001 · CREST Ready
Securing the digital perimeter of the modern enterprise.
Vanguard Citadel Sec delivers offensive security, cloud defence and regulatory consulting across RBI, DPDP, ISO 27001, PCI-DSS and GDPR — engineered for regulated, high-risk industries.
- ISO 27001:2022
- CERT-In Aligned
- CREST-Ready
- OSCP Team
- CISSP
Zero Trust
24×7 SOC
Red Team
Mean time to detect
4.2 min
Why count on us
A partner that operates like an extension of your security team.
Vanguard Citadel Sec blends deep technical practitioners with regulatory specialists — so security and compliance move forward together, not in parallel silos. From securing business-critical assets to defending real-world attacks, we work alongside your team to remediate risks with measurable impact.
Led by industry practitioners
PJ
Priyanka Joshi
Drives strategy, client advisory and security consulting practice — partnering with CISOs and CIOs to build resilient security programs.
AK
Abhijeet Kulkarni
Programme Manager
Offensive-first DNA
Our consultants are practitioners who break things for a living — so your business does not have to.
Outcome-driven reports
Risk-rated, repro-ready, evidence-backed reports an engineer can act on and an executive can defend.
Engineered for scale
Proven across hyperscalers, regulated industries and complex hybrid estates spanning multiple geographies.
Privacy by design
DPDP and GDPR specialists embedded with our offensive teams — security and privacy advised in lock-step.
What We DO
Full-spectrum information security services.
From offensive assessments to regulatory consulting, our practitioners help you defend, detect and demonstrate — across every layer of your stack.
01
Cloud Security
Security categorisation of cloud resources, controls assessment, CSPM, IAM review and network architecture audits across AWS, Azure and GCP.
02
Network Security
Identify weaknesses in perimeter, segmentation, Active Directory and wireless deployments through adversary-emulated testing.
03
Regulatory Compliance
Gap assessment, control design, implementation support and audit readiness for RBI, DPDP, ISO 27001, PCI-DSS, GDPR and HIPAA.
04
SOC as a Service
A 24×7 hybrid SOC combining people, process and modern SIEM/SOAR/XDR to deliver detection, threat hunting and incident response.
05
Threat Intelligence
Curated, actionable intelligence on adversaries, leaked credentials and brand exposure across surface, deep and dark web.
Regulatory consulting
RBI, DPDP and every framework that matters.
Whether you operate in BFSI, healthcare, payments or SaaS — we translate dense regulation into practical, auditable controls without slowing your business down.
RBI
RBI Guidelines
Cyber security frameworks for banks, NBFCs, Payment Aggregators, Cooperative banks — including IT examination and master directions.
DPDP
DPDP Act 2023
Digital Personal Data Protection Act readiness — consent, data principal rights, DPIA, breach notification and DPO advisory.
ISO 27001
ISO 27001:2022
ISMS scoping, risk assessment, Annex A control implementation, internal audit and Stage 1 / Stage 2 certification support.
ISO 9001
ISO 9001:2015
Quality management systems — process definition, documentation, internal audit and certification readiness across industries.
PESO
PESO Compliance
Advisory and implementation support for Petroleum and Explosives Safety Organisation cyber-physical requirements for hazardous facilities.
PCI-DSS
PCI-DSS v4.0
Scope reduction, control implementation, ASV scanning, segmentation testing and QSA-ready evidence preparation.
GDPR
GDPR
Data mapping, lawful basis assessment, ROPA, DPIA and EU representative advisory for cross-border processing.
HIPAA
HIPAA / HITRUST
Privacy and security rule implementation for healthcare providers, payers and digital health businesses.
Contact Us
Ready to harden your security posture?
Schedule a 30-minute discovery call with our principal consultants — walk away with a prioritised plan, no obligations.