AI Agents Promise Convenience, but Experts Say Consumers Should Keep Control

A smartphone with an abstract assistant interface sits beside a credit card and checklist on a desk.Security experts advise consumers to keep payment credentials private when using personal AI agents.Security experts advise consumers to keep payment credentials private when using personal AI agents.

Personal AI agents can save time by reading email, comparing products, and making purchases. But broad access can expose private information and give an agent room to act in ways users did not expect. Security experts warn that hidden instructions in webpages, emails, or documents can redirect an agent, while shopping tools may encourage larger purchases. Attorney Douglas J. Wood says consumers who give an agent their card could have limited recourse if it overspends. Experts recommend restricting access, keeping payment credentials private, and monitoring activity. No government rules, fees, forms, or deadlines are described, so consumers currently have to manage these risks through their own choices and checks.

TLDR: AI agents can help with research and routine tasks, but experts warn that they may expose private data, follow malicious instructions, or make unauthorized purchases. Consumers can reduce exposure by limiting access, keeping credit cards out of agents’ hands, and checking what the tools do.

Personal AI agents can read email, compare products, and handle purchases, but security experts warn that giving them access to private accounts and payment details carries real risks. The tools may save time, yet they can also act beyond a user’s instructions, expose personal information, or spend money with limited options for recovery.

The practical case for caution is straightforward: these agents work by accessing information and services on a user’s behalf, while their security and privacy protections may not be ready for that level of access. Cybersecurity expert Hed Kovetz said technology firms moved products to market without sufficient security measures. He would welcome help with administrative tasks but does not trust commercially available agents with his email, banking details, or health records.

The products are already attracting users. Meta’s Muse became the most downloaded product in Apple’s App Store soon after it became available last month. Agents promise to save time and possibly money by reading correspondence and spending on a user’s behalf, but the same authority can lead to actions the user did not explicitly approve.

One risk begins with information the agent encounters online. A prompt injection is an instruction planted in a webpage, email, or document that can lead an agent to ignore its original directions. An attacker may not need to break into an account or install malicious software. If the agent treats the planted text as a command, it could reveal private information or take an unintended action.

Lynette Owens, a consumer education expert at TrendLife, said incidents of prompt injection have increased and criminals are becoming more skilled at hiding malicious code on websites. She sees a useful role for agents in product research and comparing deals, but advises against letting them make purchases. Her approach keeps a person in charge of the final decision and the payment credentials.

Retail incentives add another concern. Consumer protection expert Lindsay Owens said it may be difficult to tell whether an agent is acting for the shopper or a retailer. Walmart’s shopping agent, Sparky, increased average consumer basket sizes by almost 40% compared with shoppers who browsed normally. That figure does not establish why shoppers bought more, but Lindsay Owens said it suggests that some agents could be trying to steer users toward larger purchases.

The potential cost of delegation goes beyond a larger shopping basket. Media and technology attorney Douglas J. Wood said a consumer who gives an agent credit card information makes it an authorized user. If the agent exceeds instructions and spends money, a card issuer could argue that the consumer authorized the purchasing tool. Wood said that under federal law, the consumer would not be entitled to loss protection in that situation. Because the bot cannot be sued, he said, cutting off its access may be the only remedy, after the loss has occurred.

A spending limit does not necessarily settle the problem. An instruction such as “Don’t spend more than $25” can be undermined if a prompt injection persuades the agent to follow different directions. That leaves consumers relying on systems that may not clearly show what they are doing with personal data. Computer engineering expert Matt Fredrikson said consumer-facing agents are not immediately transparent about data use, though users can ask for more information by probing them.

Experts differ on how much access is acceptable. Entrepreneur Chris Franco sees a better return from sharing information with agents than from the personal data consumers have long shared with advertising platforms. He allows agents including Muse and Grok Bot to review his Gmail inbox and believes the benefits can outweigh the risks. He also says users need strict instructions and should monitor agent behavior. Fredrikson likewise gives agents some autonomy while closely watching their activity.

The immediate impact for consumers is a choice about access, spending, and responsibility. An agent may need access to email or other personal information to perform tasks, and handing over a credit card can make the consumer responsible for purchases that exceed instructions. Experts recommend limiting what is shared, using agents to research or compare rather than complete purchases, and monitoring their activity. The source account identifies no required forms, fees, government enforcement rules, or compliance deadlines; those details are not part of the plan described here.

No shared rule or formal oversight process is described in the account. The next steps are practical: consumers can set limits, withhold payment credentials, ask agents what they do with data, and review their activity. Those checks are necessary steps for managing risk, not a guarantee that an agent will stay within its instructions. The experts’ warnings make clear that responsibility remains with the person who grants access.

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