For a 150-year-old brand like ADT, the most valuable asset is user trust, which is hard to build and easy to lose. Therefore, every product investment must first be validated against its potential impact on that trust.

A powerful, non-obvious moat for software is deep integration with hardware. DJ software Serato partnered with hardware makers like Pioneer, becoming the industry standard. This makes switching extremely costly for users who have invested thousands in hardware, creating a durable competitive advantage.

Lenovo strategically partners with Pax8, a software marketplace, attending their events not to sell hardware, but to engage with the MSP community where they are already active. This demonstrates an ecosystem-first approach focused on sharing best practices and building relationships beyond direct sales.

Google's competitive advantage in AI is its vertical integration. By controlling the entire stack from custom TPUs and foundational models (Gemini) to IDEs (AI Studio) and user applications (Workspace), it creates a deeply integrated, cost-effective, and convenient ecosystem that is difficult to replicate.

While first-wave defense tech leaders like Anduril pursue a vertically integrated "Apple" model (hardware and software), a new approach is emerging. Companies like Auterion are building a common, open operating system for drones from various manufacturers. This "Android for drones" strategy focuses on creating a wide, interoperable ecosystem rather than a closed, proprietary one.

Smaller software companies can't compete with giants like Salesforce or Adobe on an all-in-one basis. They must strategically embrace interoperability and multi-cloud models as a key differentiator. This appeals to customers seeking flexibility and avoiding lock-in to a single vendor's ecosystem.

To serve its largest customers, Square's open platform is crucial. It allows enterprises to integrate their preferred third-party tools with Square's core services. This flexibility prevents churn by allowing customers to customize their tech stack instead of being locked into a closed ecosystem.

Don't just sell a product; become an indispensable part of your customer's workflow. By offering integrated products and services, you create a value ecosystem that locks out competitors and makes leaving an impractical and undesirable option.

Contrary to early narratives, a proprietary dataset is not the primary moat for AI applications. True, lasting defensibility is built by deeply integrating into an industry's ecosystem—connecting different stakeholders, leveraging strategic partnerships, and using funding velocity to build the broadest product suite.