Retailers and banks block AI agents over security risks and access rules

Retailers and financial institutions are increasingly blocking artificial intelligence agents from accessing their platforms, creating significant friction for users who rely on these tools for automated tasks. This trend highlights a growing conflict between the convenience of autonomous digital assistants and the strict access controls maintained by major service providers.Major websites are stopping AI tools from making purchases or managing accounts, forcing users to handle tasks manually.Platform access controls are increasingly targeting autonomous agents, creating legal and technical barriers for AI-driven commerce.

The evidence

Meta’s Muse assistant encounters verification checks at Walmart, a retail partner, despite the site welcoming AI assistants. Engadget reported that the verification checks were not designed to block the assistant but function as routine security measures.reported Amazon is explicitly preventing the tool from making purchases on its platform, as according to the published reportreported

The retailer argues that agents violate its access rules and put customer data at risk. Perplexity argues that users have given its Comet AI browser permission to act for them. In August 2026, a federal appeals court overturned a preliminary injunction against Perplexity, though the core conflict remains unsettled.

The decision

During JPMorgan Chase's October earnings call, CFO Jeremy Barnum noted that certain agents utilize shared login credentials and screen scraping to move funds. He characterized these techniques as insecure and cautioned that users surrendering their login details might be held liable for any unauthorized actions taken by an agent.

eBay's terms of service forbid unauthorized automated purchasing agents unless the company explicitly allows them. Companies have commercial incentives to restrict automated access, such as eBay’s policy barring unauthorized buy-for-me agents unless permission is granted. Amazon also offers its own Buy for Me feature, which can purchase products from other brands' websites.

What to make of it

Allowing an AI assistant to perform tasks for you does not guarantee that a website will accept its interactions. Certain blocks are intentional, whereas others result from security measures that struggle to differentiate between authorized agents and unwanted automated activity. Users may end up back at the keyboard, performing the very tasks they wanted to avoid.

In practice

Startup founders building consumer-facing AI tools must account for these access barriers. Meta’s Muse struggles with CAPTCHAs at Walmart, demonstrating that even partners can impose technical hurdles. Amazon’s deliberate blocking shows that commercial rivals will enforce access rules strictly. JPMorgan Chase’s stance indicates that financial services will likely remain closed to unverified automated agents due to security risks.