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In 2025, APIs are no longer a developer concern confined to the engineering floor — they are the nervous system of every digital business. Banking apps, logistics platforms, healthcare portals, and manufacturing ERP systems all communicate through APIs. And threat actors have noticed. Industry reporting consistently finds that over 70 per cent of enterprise web applications now expose more attack surface through APIs than through traditional web interfaces, and India’s rapidly digitising economy is a prime target.
For Indian IT leaders and CISOs managing complex, multi-vendor environments, API security demands the same rigour as perimeter firewall policy — yet most organisations are operating with little to no runtime visibility into what their APIs are actually doing. This guide unpacks the API threat landscape relevant to Indian enterprises, the compliance pressure from the DPDP Act and CERT-In, and the concrete steps security teams can take today.
The shift to cloud-native architectures, microservices, and third-party SaaS integrations has multiplied the number of API endpoints in a typical enterprise from dozens to thousands — often without a corresponding inventory or governance programme. Shadow APIs (endpoints that were never officially catalogued), zombie APIs (old versions left running after a service update), and over-privileged APIs (endpoints that return more data than the caller needs) are the three most dangerous categories.
Real-world breach patterns reveal a consistent playbook: attackers enumerate API endpoints through OSINT and passive reconnaissance, probe authentication mechanisms for broken object-level authorisation (BOLA) or broken function-level authorisation (BFLA) flaws, then exfiltrate customer PII or business-critical data at low-and-slow request rates that evade traditional DDoS and WAF signatures.
For Indian enterprises, the stakes are amplified by regulatory liability. Under the Digital Personal Data Protection (DPDP) Act 2023, a breach involving personal data of Indian citizens triggers mandatory notification obligations and potential penalty proceedings. An API that inadvertently exposes customer records — even without a “classic” database compromise — may constitute a reportable data breach. Similarly, CERT-In’s April 2022 directive requires organisations to report incidents within six hours of detection, making rapid detection and containment non-negotiable.
The OWASP API Security Top 10 is the most widely referenced framework for categorising API vulnerabilities. Here is how the highest-impact risks manifest in Indian enterprise environments:
An authenticated user manipulates an API parameter — such as /api/v1/accounts/12345/statement — to access another user’s data. In banking and fintech APIs, where India is a global leader, this is the single highest-impact vulnerability. Automated testing rarely catches BOLA because the API responds with a valid 200 status; only semantic analysis reveals the data belongs to a different principal.
Weak token generation, missing token expiry, and insecure credential reset flows are endemic in legacy enterprise APIs designed before OAuth 2.0 and OpenID Connect became standard. Many Indian financial services institutions and insurers still operate core systems with SOAP/XML APIs that rely on basic authentication over internal networks — adequate in theory, but catastrophic when those networks are compromised or when a misconfigured API gateway exposes them to the internet.
APIs frequently return full data objects and rely on client-side applications to filter what is displayed. A mobile banking app might receive a complete customer profile — including Aadhaar-linked fields, credit score, and full transaction history — and display only the name and balance. An attacker who intercepts the raw API response receives everything. This pattern is a systemic problem in rapidly built fintech and healthtech platforms.
Without rate limiting, attackers can enumerate valid account numbers, brute-force OTP windows (particularly relevant in Indian payments where SMS OTP is ubiquitous), or conduct credential stuffing at scale. An unprotected authentication API with no rate limiting can be exploited within minutes of discovery.
Permissive CORS policies, verbose error messages that expose stack traces or internal hostnames, debug endpoints left active in production, and missing HTTP security headers are consistently found in enterprise API inventories. In multi-cloud environments — common across Indian IT and ITeS companies — misconfiguration in one cloud provider’s API gateway can expose assets hosted in another.
A mature API security posture is built in layers. The following checklist is designed for Indian IT and security teams who need to demonstrate progress against DPDP Act requirements and CERT-In compliance while managing complex, heterogeneous environments.
API security does not exist in isolation — it sits on top of a network infrastructure that must itself be hardened. FortiGate Next-Generation Firewalls, deployed and managed by PJ Networks as part of its managed security service, provide the foundational network controls that complement API-layer defences:
PJ Networks’ 24/7 NOC/SOC team monitors FortiGate deployments around the clock, providing continuous tuning of firewall and IPS policies as the API threat landscape evolves — a capability that most in-house teams find difficult to sustain given the pace of new vulnerability disclosures.
Effective API security depends on one capability above all others: visibility. An API attack that goes undetected for days causes disproportionate damage — and in the CERT-In framework, delayed detection directly undermines your ability to meet the six-hour reporting window. This is where the SecOps platform we deploy and operate for clients, PrahiX Ora (built by PrahiX Tech Pvt Ltd), addresses a critical gap.
Many Indian enterprises face fragmented observability: API gateway logs in one tool, firewall events in another, application logs in a third, and no single analyst view that correlates them into a coherent attack storyline. PrahiX Ora is designed to close that gap through four integrated pillars:
SIEM: Ora’s SIEM ingests log and event data from API gateways, FortiGate firewalls, WAFs, identity providers, and application servers into a unified correlation engine. Correlation rules are mapped to the MITRE ATT&CK framework, so an API enumeration attempt (Reconnaissance) followed by a BOLA exploitation (Collection) is surfaced as a linked attack storyline — not as two unrelated alerts. Graph-based attack reconstruction lets analysts trace lateral movement from an API breach to downstream systems. For Indian enterprises specifically, Ora’s tiered retention (hot, cold, and archive tiers) is designed to support CERT-In’s direction on 180-day in-country log retention, keeping API security telemetry available for forensic investigation without requiring expensive primary storage for all log tiers.
NMS: The Network Management System pillar provides unified observability across firewalls, switches, wireless access points, and WAN/SD-WAN links — the infrastructure over which all API traffic flows. LLDP/CDP topology discovery builds an automatic map of the network path from API client to application server, enabling rapid root cause analysis when API performance anomalies appear. ML-based anomaly detection identifies unusual traffic patterns that may indicate API abuse at the network layer, even before application-layer detection fires. For enterprises managing multi-vendor estates — common in Indian IT environments where FortiGate often coexists with legacy switches and third-party WAN equipment — this unified NOC view eliminates the blind spots that fragmented tooling creates.
Video surveillance (VMS): For manufacturing, retail, and multi-site enterprises, Ora’s video surveillance module — supporting ONVIF, Hikvision, and Dahua camera integrations with built-in video analytics — brings physical and network security under a single operations view. This matters for API security in OT environments, where physical access to network equipment can bypass logical controls. Correlating physical access events with API activity anomalies is a capability that standalone API security tools cannot provide, and it is particularly valuable for industrial and retail organisations managing large, geographically distributed sites.
SOAR: The Security Orchestration, Automation and Response pillar is where Ora’s API security value is most immediate for Indian enterprises facing CERT-In’s six-hour reporting window. Pre-built playbooks with connectors to FortiGate and other security controls enable automated response actions — pushing a blocklist to FortiGate in response to a confirmed credential stuffing attack, or isolating a compromised service account — within minutes of detection. For the CERT-In reporting obligation specifically, playbook-driven automation is what makes the six-hour window realistic. A manually operated SOC, no matter how skilled, cannot consistently investigate, scope, and document an API breach fast enough without automated assistance.
If your organisation is operating with siloed API, network, and security telemetry and finding it difficult to meet CERT-In’s reporting timelines, our team is available to walk through how PrahiX Ora is deployed and configured for environments similar to yours.
The Digital Personal Data Protection Act 2023 creates direct liability for Data Fiduciaries — organisations that determine the purpose and means of processing personal data. An API that exposes personal data is a processing activity under the DPDP Act, and a breach of that API is a personal data breach triggering notification obligations.
Key DPDP Act requirements that API security programmes must address:
The era of treating API security as an application development concern is over. APIs are business-critical infrastructure that carry personal data, financial transactions, and operational commands — and they are under active, targeted attack by sophisticated threat actors who have developed tooling and techniques specifically designed to evade signature-based defences.
Indian enterprises face a convergence of expanding threats and tightening regulatory requirements that makes 2025 a pivotal year for API security maturity. The DPDP Act creates direct accountability for personal data breaches. CERT-In’s six-hour reporting window demands near-real-time detection and response capability. And the API attack surface is expanding faster than most security teams can track manually.
PJ Networks helps Indian enterprises build and operate the layered defences that API security requires — from FortiGate perimeter controls and managed 24/7 NOC/SOC services to the unified SecOps visibility provided by the PrahiX Ora platform. If your organisation is conducting an API security assessment or preparing for DPDP Act compliance, our team is available for a no-obligation conversation about your specific environment.