Data & Privacy › Data Masking & Privacy
Data Masking & Privacy — Use realistic data in test environments without the real risk
SIRI Security designs and implements data masking so your development and test environments can use realistic data without exposing actual customer information.
62%Of cloud detections
6 HRCERT-In notification window
29.44LIncidents CERT-In handled
Why data-layer assurance is now explicit
Live tracking · scroll to see every relevant change
Named requirement
DPDPA
India's Digital Personal Data Protection Act names specific obligations — reasonable security safeguards, breach notification, data minimisation — that a data-layer audit has to test against directly.
Baseline
6 HR WINDOW
CERT-In's breach-notification window depends on knowing what data was exposed and how — which is exactly what data security auditing establishes in advance.
Growing gap
62% CLOUD
Cloud misconfiguration and IAM exploitation account for 62% of detections in cloud environments (DSCI) — the majority of it touching data stores directly.
Cross-border
GDPR
Organisations processing EU personal data carry GDPR obligations in parallel with DPDPA — a data audit scoped to one alone can leave the other exposed.
Baseline
70% MALWARE
Trojans and file infectors make up 70% of malware detections (Seqrite 2026) — relevant to how a breach simulation is scoped.
Where the data actually sits, not where policy says it sits
What is Data Masking & Privacy engineering?
Data masking replaces sensitive values with realistic but fictional equivalents — preserving format and referential integrity so applications and tests still work correctly, while removing the actual sensitive content.
We assess where masking is genuinely needed (typically non-production environments and analytics/reporting layers), design the masking rules per data type, and help implement them within your existing data pipeline rather than as a disconnected add-on.
Most data exposure is a configuration problem, not a hacking problem
62% of detections in cloud environments trace to misconfiguration and IAM exploitation (DSCI) — the exact failure mode data-layer auditing is built to catch before an attacker does.
SIRI Security delivers Data Masking & Privacy to this standard directly — practitioner-led, documented, and connected to SIRI Law LLP's legal and regulatory response if a finding ever needs to go further.
What organisations get wrong
Four assumptions that leave sensitive data unaccounted for
Data-layer risk rarely looks like a hack — it looks like a setting nobody reviewed.
01 — VISIBILITY
“We know where our sensitive data lives”
Data sprawls across test environments, backups, and third-party tools far faster than data maps get updated — most organisations are auditing an outdated picture.
02 — SCOPE
“Our privacy policy covers our obligations”
A policy document doesn't test whether the technical controls behind it — masking, access limits, retention enforcement — actually exist.
03 — READINESS
“We'll figure out breach response if it happens”
Untested breach response means discovering your notification obligations for the first time under a 6-hour clock — not the moment to learn the process.
04 — SCOPE
“DPDPA compliance covers our global obligations too”
DPDPA and GDPR overlap but aren't identical — an organisation with EU data subjects needs both assessed, not one assumed to cover the other.
What Data Masking & Privacy covers
What's included, start to finish
A practical audit of where data actually sits and how it's actually protected — not a policy-only review.
01
Masking requirement assessment
Where sensitive data is currently flowing into environments that don't need the real values.
02
Masking rule design
Format-preserving, referentially-consistent rules per data type (names, financial data, identifiers).
03
Implementation support
Integrating masking into your existing ETL/data pipeline rather than a bolt-on process.
04
Static vs. dynamic masking guidance
Choosing the right approach for each environment and use case.
05
Validation testing
Confirming masked data still supports valid testing while containing no recoverable real values.
Evidence, not guesswork
No data audit vs. policy-only review vs. a SIRI data assessment
The gap between paperwork and tested reality is exactly where most data exposure lives.
| Approach | No data audit | Policy review only | SIRI Data Masking & Privacy |
|---|---|---|---|
| Technical control testing | None | Not covered | Included |
| Data discovery across environments | No | Assumed accurate | Directly tested |
| DPDPA + GDPR coverage | N/A | Often one only | Both, where applicable |
| Breach simulation | No | No | Included where scoped |
| Evidence for a vendor questionnaire | No | Partial | Formal report |
Sources: Digital Personal Data Protection Act, 2023 (India); CERT-In 2022 Directions; EU GDPR; DSCI cloud detection data. Summarised for comparison; confirm current obligations applicable to your data footprint.
Numbers every board should know
What data-layer assurance is actually catching
62%
Of cloud detections
Trace to misconfiguration and IAM exploitation (DSCI) — much of it touching data stores directly.
6 HR
CERT-In notification window
From discovery — the deadline a data audit exists to make achievable.
29.44L
Incidents CERT-In handled
In the latest reporting year — the scale data exposure risk sits against.
70%
Of malware detections
Are trojans and file infectors (Seqrite 2026), a common precursor to data-layer compromise.
Why SIRI for Data Masking & Privacy specifically
Data assurance connected directly to your legal obligations
The same roof that audits your data controls drafts your DPDPA and CERT-In filings if a real incident follows.
01
Findings connected directly to legal exposure
SIRI Security runs under the same roof as SIRI Law LLP — when a finding carries real legal exposure, the engagement can be brought under attorney-client privilege from day one, not bolted on after the fact.
02
Built by the team that files under DPDPA and CERT-In
Sneha Iyer, Associate Partner and Head of GRC and Compliance, has delivered ISO 27001, SOC 2, and SEBI CSCRF programmes across the client base this catalogue serves.
03
Financial-sector data obligations covered directly
Deepa Menon, Senior Associate, advises banks, NBFCs, and payment aggregators directly on RBI licensing, SEBI CSCRF, and financial-sector cyber resilience.
04
Court-admissible when a breach becomes a dispute
Ananya Krishnan, SIRI's Digital Forensics Lead, prepares court-admissible forensic reports and testifies as an expert witness when findings end up in front of a judge.
Who this is built for
Organisations this data & privacy service is built for
Banks, NBFCs & payment aggregators
SaaS companies handling customer data
Organisations with EU data subjects
Healthcare & insurance data handlers
Enterprise vendors facing data-handling questionnaires
How we work
From scoping to ongoing delivery
01
Scoping & Data Mapping
We identify what data and systems are actually in scope before any testing or audit work begins.
Week 102
Assessment
Hands-on review or testing carried out by our specialists, with evidence documented for every finding.
Weeks 2–303
Reporting & Risk Rating
Findings written up with business impact and clear prioritisation, not just a raw output dump.
Week 4+04
Remediation Support
We remain available to your team while findings are fixed, and confirm closure on request.
OngoingFrequently asked
Data Masking & Privacy, answered directly
Does masked data still work for testing?
Yes — masking is designed to preserve format and referential integrity, so applications and test suites continue to function normally.
Is this reversible?
Properly implemented masking is one-way; if reversible pseudonymisation is what you actually need instead, we scope that specifically.
How long does this take?
Most engagements in this category run 1 to 3 weeks depending on the volume of data and systems in scope.
Who does the work?
Senior SIRI Security specialists carry out every engagement personally, coordinating with SIRI Law LLP wherever a finding has regulatory implications.
Know where your data actually sits
Scope Data Masking & Privacy.
Most engagements start with a short scoping call to confirm data footprint, regulatory exposure, and timeline.
Talk to SIRI Security: +91 79819 12046
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