Multi-DRM in OTT: Securing content across devices and platforms

In streaming, failure is measured in seconds, not days. A leaked blockbuster or a compromised live sports stream can wipe out millions in revenue.  As per a report in mediasportsbusiness, 51% of sports fans consume pirated content monthly (media.sportbusiness).

Platforms that underinvest in content protection often realize the consequences too late. What was once viewed as a purely technical safeguard has now evolved into a boardroom priority.

With OTT market crossing $300+ billion globally (Precedence Research), even a small lapse in content security or entitlement logic creates direct financial compliance, and reputational risk.

Today, DRM is no longer a backend utility, it has become a critical engine for revenue protection.

DRM is no longer just about security. It has become guardrail for streaming revenue

Digital Rights Management (DRM) enables secure delivery of encrypted video, ensuring only authorized users can access content on approved devices through controlled access.

As the streaming industry evolves, platforms now compete not just on content, but on release speed, live experiences, and monetization models.

Several industry shifts are making content protection more critical than ever:

Premium content is released directly on streaming platforms

Blockbusters and exclusive series are released simultaneously across global OTT platforms increasing piracy risk within minutes of release.

Architectural implications:

• DRM should be embedded early in the content pipeline 

• License delivery needs to be fast, reliable, and scalable, especially during high-stakes launches

• Tighter integration with entitlement systems and release control

Figure 1: Estimated annual global revenue loss from video piracy (2018–2026). Trend derived from aggregated industry reports indicating losses ranging from ~$30B to $70B+ annually and growing with OTT adoption.

Live sports and events drive massive concurrent traffic

Major sports events attract millions of concurrent viewers. Any lapse in DRM infrastructure during these spikes can result in service disruption or security gaps.

Architectural implications:

• Auto-scaling, multi-region DRM license infrastructure to handle spikes and global demand

• Active failover mechanism with real-time monitoring pipelines for high availability

• Continuous monitoring during live events to detect and resolve issues before they impact users

Hybrid monetization models are expanding

The convergence of subscription models is increasing the complexity of entitlement management and demanding more sophisticated playback control mechanisms.

Architectural implications:

• DRM should be tightly integrated with user identity and entitlement systems to enforce access accurately, while remaining architecturally decoupled

• Playback policies should be dynamically driven by underlying business models (SVOD, AVOD, TVOD, hybrid)

• Seamless integration with billing and access control systems is essential for consistent user experiences

Global device fragmentation continues to grow

OTT platforms must support multiple device types across mobile, web, smart TVs, and gaming consoles, each with different DRM capabilities.

Architectural implications:

• Adoption of a multi-DRM approach to ensure seamless playback across diverse devices and platforms

• Use of standardized packaging with common encryption to simplify DRM integration and delivery workflows

• Ongoing device testing and compatibility management to maintain consistent playback experiences

In this environment, DRM is no longer just about compliance with studio requirements — it is a core platform capability that directly impacts revenue protection, platform scalability, and user experience.

How DRM works in OTT platforms

DRM works by encrypting content during packaging, distributing it via CDN, and issuing licenses through a secure key management and authorization workflow. The viewer's experience remains seamless but the content always stays protected. A typical DRM-enabled playback flow looks like this:

Figure 2: DRM Playback flow

1. Content is encoded and encrypted during packaging stage before delivery to CDN (often using Common Encryption – CENC)

2. The user chooses to play the content

3. Media player SDK fetches encrypted video segments from the CDN

4. The player requests a license from a DRM license server

5. Upon authorization, decryption keys are issued

6. Playback begins securely on the device

This entire exchange typically happens within milliseconds to a few seconds, depending on network conditions and infrastructure performance.

Why multiple DRMs exist

Despite DRM being a mature technology, many streaming platforms still treat it as a standalone security component rather than a core architectural layer resulting in recurring challenges appearing across OTT implementations.

Some of the key reasons why strategizing DRMs gets derailed are:

DRM is often added too late in the platform lifecycle

Platforms initially focus on encoding pipelines, player development, and content ingestion — only integrating DRM when studio requirements demand it. This leads to fragmented workflows and operational complexity.

License infrastructure is underestimated

License servers must handle extreme traffic bursts during premieres or live events. Platforms that do not design DRM infrastructure for peak concurrency often encounter playback failures or increased startup times.

Device fragmentation is not planned early enough

Different devices behave differently under the same DRM system. Without proper device testing strategies and telemetry, debugging playback issues becomes extremely difficult.

DRM is implemented separately from monetization and entitlement systems

DRM works best when tightly integrated with user identity, subscription entitlements, and playback policies. When these systems are loosely connected, operational complexity increases significantly.

Multi-DRM complexity is not about multiple DRMs—it is about multiple, uncoordinated control planes.

While Multi-DRM approach enables platforms to work seamlessly with DRM provider, each device ecosystem still relies on its native DRM standard - Widevine for Android/Chrome, PlayReady for Windows and most of Smart TVs, and FairPlay for Apple devices – making coordinated compatibility essential.

With over 6+ billion smartphones globally and thousands of device models across TVs, consoles, browsers, and set-top boxes, fragmentation is unavoidable.

Figure 3: Illustrative distribution based on industry trend reports (Statista, Nielsen, DataReportal)

To reach audiences at scale, OTT platforms must support all major DRMs simultaneously. That’s where multi-DRM approach comes to play. 

What is multi-DRM?

Multi-DRM is a unified strategy that allows OTT platforms to:

• Encrypt content once using CENC, instead of encrypting it multiple times, and support it across multiple DRM systems

• Dynamically deliver the correct DRM license per device

• Maintain a single entitlement and backend workflow

While all this happens behind the scenes in the backend, from a user’s perspective nothing changes, playback works as it would if the system used a single DRM. At the backend, the platform detects device capabilities and applies to the appropriate DRM automatically.

Large global platforms like Netflix and Disney+ follow this multi-DRM model and use a unified backend that dynamically adapts. (Ref: Kinescope)

Figure 4: Multi DRM Architecture

What this means for modern OTT platforms

Experience from real-world streaming platforms

In large-scale streaming environments, DRM challenges rarely come from encryption itself. The real complexity emerges from operational scale, device diversity, and performance expectations.

• Across multiple OTT implementations, several patterns consistently emerge

• Device-specific playback issues accounting for increased support tickets

• DRM-related startup latency affecting viewer engagement and churn

• Fragmented DRM pipelines increasing operational overhead

Successful platforms typically evolve toward unified multi-DRM architectures, where encryption, packaging, entitlement, and playback logic operate through a single coordinated workflow.

This shift allows streaming providers to scale securely while maintaining a consistent viewer experience across devices. 

Implementing a unique secure collaboration solution for a product company

Nagarro enabled secure distribution and collaboration of high-value media assets across distributed teams and partners and scalable cloud architecture to support global collaboration for a digital platform.

Figure 5: Our 4 stage multi-DRM modernization framework enables global streaming platforms to secure premium content, reduce operational complexity and scale with confidence. 

Organizations must modernize fragmented DRM implementations into a unified multi-DRM architecture, migrate legacy license servers to auto-scaling cloud environments, and optimize license acquisition for live and high-concurrency events. Incorporating device-aware entitlement logic further reduces playback failures and improves cross-device consistency. Together, these steps improve scalability, simplify operations, and strengthen studio compliance without compromising user experience.

Key DRM technologies

1. Widevine (Google)

• Used across Android devices and major browsers 

• L1 – Hardware-backed (required for HD/4K)

• L3 – Software-based (typically SD)

• Beneficial in mobile-first use cases

2. PlayReady (Microsoft)

• Critical for premium living-room experiences

• Common across Windows, Xbox and many Smart TVs 

• Offers strong support for UHD, HDR, and studio grade output protection

3. FairPlay (Apple)

• Very specific to Apple required for iOS, iPadOS, Safari, and Apple TV

• Enforces strict security standards, especially high-resolution playbacks

Operational challenges and ways to overcome

As platforms scale to serve millions of concurrent viewers, DRM introduces a new set of operational challenges:

• License server spikes during live events: Migrate traffic surges with auto-scaling, multi-region license servers and intelligent load balancing.

• Offline playback key management: Secure keys using device-level protection (Trusted Execution Environment) combined with short-lived, renewable licenses and robust revocation controls.

• Device-specific debugging: Leverage centralized analytics and a unified multi-DRM abstraction layer to efficiently manage device fragmentation.

• Low-latency requirements: Optimize license acquisition flow and deploy DRM services closer to CDN edge locations to minimize startup delays.

• High availability across regions: Implement active multi-region architectures with global failover to ensure uninterrupted playback worldwide.

Many platforms complement DRM with forensic watermarking, which embeds user-specific identifiers into video streams, enabling traceability of leaked content.

Conclusion

As OTT platforms scale globally and content value continues to surge, DRM has evolved from a security safeguard into a core architectural pillar. Platforms that treat DRM as an integrated, observable, and continuously evolving capability, not an afterthought unlock faster innovation cycles, more predictable scalability and far more resilient user experiences.

A unified multi-DRM architecture isn’t just about supporting multiple ecosystems. It establishes a single, authoritative path for encryption, policy enforcement, entitlement logic, device adaptation, and operational telemetry. This foundation becomes the engine that allows streaming services to scale globally, absorb unpredictable traffic patterns, and maintain consistent playback quality across and an increasingly fragmented device landscape.

With deep engineering expertise, large-scale platform experience, and a consulting-led approach, Nagarro enables streaming platforms to transform DRM from a technical constraint into a strategic enabler of growth and resilience.