# SOC 2 vs. ISO 27001 vs. DPDPA: A Mapping Guide for Cross-Border Operations | AttriEdge

Home / Articles / SOC 2 vs. ISO 27001 vs. DPDPA: A Mapping Guide for Cross-Border Operations Serial X-06 Classification COMPARISON Filed June 25, 2026 Read 2 min read Owner H. Attri SOC 2 vs. ISO 27001 vs. DPDPA: A Mapping Guide for Cross-Border Operations Three frameworks, partial overlap, different audiences. When you need which, how they map to each other and how to design one control set that satisfies all three. By Hemant Attri , Founder, AttriEdge Index Quick summary: who needs which Framework structure compared Control overlap (with mapping) Audit/certification differences Cost comparison Sequencing recommendation The unified control set approach Where AttriEdge fits These three frameworks together cover the global enterprise compliance map for US SaaS with India operations. Done right, you build one control set that satisfies all three, the “assess once, map to many” approach. Done wrong, you run three duplicate projects. Quick summary: who needs which SOC 2: US enterprise buyers. ISO 27001: European and global buyers, some regulated sectors. DPDPA: anyone processing personal data of Indian residents, which includes nearly every company with an India team or Indian users. Framework structure compared SOC 2 is an attestation (a CPA opinion on your controls over a period). ISO 27001 is a certification (an accredited body certifies your ISMS). DPDPA is a law (statutory obligations enforced by a regulator). Different instruments, overlapping requirements. Control overlap (with mapping) Roughly 75% of controls overlap between SOC 2 and ISO 27001 (access control, change management, vulnerability management, incident response). Roughly 70% overlap between SOC 2 Privacy and DPDPA (notice, consent, rights, breach notification). The DPDPA-to-SOC 2 detail is in the cross-mapping playbook . Audit/certification differences SOC 2 is issued by a US CPA firm; ISO 27001 by an accredited certification body (TÜV, BSI, DNV, Bureau Veritas, well-established in India); DPDPA compliance is self-implemented and, for Significant Data Fiduciaries, independently audited annually. Cost comparison First-time, ballpark: SOC 2 $25K–$70K, ISO 27001 $20K–$50K, DPDPA implementation $15K–$60K. A unified control set cuts the combined cost meaningfully versus three separate efforts. Sequencing recommendation US-focused: SOC 2 first, ISO 27001 when European demand appears, DPDPA in parallel from day one if you have Indian data. Europe-focused: ISO 27001 first. DPDPA is never “later” if Indian residents are in scope. The unified control set approach Build controls once; map each to SOC 2, ISO 27001 and DPDPA. This is the “assess once, map to many” methodology, covered in its own vocabulary entry and it’s how the GCC compliance encyclopedia frames a complete program. Where AttriEdge fits The diagnostic tells you which frameworks your buyers actually require and produces a unified-control-set roadmap. $999, 48-hour deliverable. From the register X-10 COMPARISON AI-Agent Questionnaire Automation vs. Human Review: When Each Wins X-09 COMPARISON Vanta vs. Drata Multi-Entity Workspaces: Which Works Better for India GCC Setups X-08 COMPARISON Big 4 Compliance Consulting vs. a Specialist Practice: A Decision Framework X-07 COMPARISON In-House Compliance Hire vs. Fractional Specialist: The Real Cost at Series A Chain of custody. Drafted by H. Attri · Filed June 25, 2026 · One specimen of the evidence discipline AttriEdge operates for clients. Frequently asked questions Do we need all three? Not always. SOC 2 if you sell to US enterprise; ISO 27001 if you sell to European/global buyers; DPDPA if you process Indian residents' data (which most India-operating companies do). Many US-SaaS-with-India teams end up needing all three over time. Can ISO 27001 substitute for SOC 2? Sometimes for European buyers, rarely for US enterprise. US buyers usually want SOC 2 specifically. Some accept ISO 27001 as an interim, but the safe answer for US enterprise is SOC 2. What about HIPAA, PCI? Those are sector-specific overlays, HIPAA for health data, PCI for card data. They layer on top of a SOC 2/ISO foundation rather than replacing it. Sequence order recommendations? SOC 2 first if US-focused, ISO 27001 first if Europe-focused. DPDPA implementation is non-optional if you have Indian users and should run in parallel, not last. Cost savings from a unified control set? Substantial. With ~75% overlap between SOC 2 and ISO 27001 and ~70% between SOC 2 Privacy and DPDPA, designing one control set and mapping it to all three cuts duplicate work by roughly 40–60%. Talk to the operator. This document is one slice of the work AttriEdge does for US SaaS companies with India GCCs. If your situation needs the operating layer, start with a 90-minute diagnostic. Book your $999 diagnostic →