• Mark Cuban says data center developers are using healthcare-style contracts to confuse communities.
• He said healthcare contracts are "so big and so long" that insurers "get to be contractual terrorists."
• Data centers, which are crucial for the AI boom, have become a hugely contentious issue across America.

Healthcare has long used complex contracts that can obscure who pays for what. Mark Cuban says data center developers are using a similar playbook.

"A lot of communities have been really dumb with the deals they've negotiated for data centers," Cuban said on an episode of "The A16z Show" released on Wednesday. "They've fallen for the contractual terrorism in a lot of cases."

Cuban, who co-founded Cost Plus Drugs, a company that sells generic medicines at a transparent markup, previously coined the phrase "contractual terrorism" while discussing healthcare.

On the A16z podcast, he said massive healthcare insurers and their subsidiaries use sprawling, opaque agreements to obscure costs and make it difficult for employers to know where their money is going.

Cuban said those contracts are "so big and so long" that insurers "get to be contractual terrorists" — a formulation he also applied to communities' data center deals.

His comments come as the data center boom has become a hugely contentious issue in communities across the US.

Residents living near facilities have reported incessant low-frequency hums, diesel smells, intrusive lights, construction disruption, pressure on water and electricity supplies, and the loss of trees and open land.

In Northern Virginia, the country's data center capital, local opposition has helped reshape elections, prompted lawsuits, and pushed residents to demand tighter noise and zoning rules.

A University of Massachusetts Amherst poll of 1,000 Americans from September found that 65% opposed building an AI data center in their local community, including 49% who said they strongly opposed it.

The ghost data center backlash

The race to build AI infrastructure has also produced far more announcements than operating facilities.

Aterio, which tracks projects through satellite imagery, permits, and other records, counted 8,268 announced US facilities as of October 20. But only 2,126 were active, and 861 were under construction.

Thousands more had just been announced, leaving local governments to negotiate consequential long-term agreements for projects that may never progress beyond a press release.

That is a risk Cuban has warned about.

In a series of X posts in September, he laid out a 10-point playbook for communities considering their first data center, arguing that every promise from a developer should come with a measurable limit, independent oversight, financial backing, and a remedy if it is broken.

Cuban's advice is to settle those questions before construction begins.

"Resolve it before granting the approval that spends the last of the town's leverage," Cuban wrote at the time.

• Mark Cuban compared swarms of AI agents to cockroaches finding ways into systems.
• Cuban said agents can launch brute-force attacks at scale without inventing new hacks.
• Cuban said defenders can also "spray" their systems with AI, which makes defenses more accessible.

Mark Cuban has pest-control tips for the AI age.

Speaking at a Reuters NEXT Newsmaker event on Friday, the entrepreneur and billionaire investor compared the threat posed by swarms of AI agents to cockroaches finding their way into a freshly treated house.

"When I go talk to cybersecurity experts, I ask them all the time. I'm like, when we hear about these hacks and breakthroughs and, you know, different problems, do these AIs invent something new?" Cuban said.

"No, they didn't invent something new," Cuban added. "But they're able to do something in mass volume that it's all brute force hacks."

Cuban compared the challenge to keeping cockroaches out of a house.

"It's like the cockroach theory, where if somebody can create enough agents, it'll find a way to get in, and then it just exploits that. But the good news is you can spray your systems with just as much AI, and I think there's gonna be more effort from the good guys trying to stop the bad guys," Cuban said. "I'm not a doomer at all."

The AI industry is already creating its own team of exterminators to contain risks.

OpenAI safety roles on LinkedIn jumped by 91% over the past year, spanning work such as system testing, technical research, and governance.

The risks have also surfaced during testing. Anthropic said that three Claude models accessed organizations’ live systems without permission after a third-party testing environment was misconfigured. The company subsequently introduced real-time classifiers to detect and block attempts to escape testing environments.

Cuban said AI could make malicious activity more accessible, but the same techniques could also strengthen defenses.

"There will be scenarios where bad stuff happens, but we've always had hacks," said Cuban. "And if it's brute force on that side with the bad guys, you can also use brute force with the good guys."