Cybersecurity Experts Warn of Potential Cyberattacks from Iran

Experts say the U.S. should be prepared for possible retaliation amid ongoing conflict with Iran.

Published on Mar. 4, 2026

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Cybersecurity experts are warning that the U.S. should be prepared for potential cyberattacks from Iran as tensions between the two countries continue. While there is currently no evidence of significant attacks on U.S. critical infrastructure, experts say Iran has proven its ability to infiltrate and disrupt American systems in the past, from banks and healthcare to oil and water utilities. They caution that Iran may seek to retaliate through cyber warfare, potentially causing severe damage.

Why it matters

The threat of Iranian cyberattacks is particularly concerning given the U.S. agency tasked with securing critical infrastructure is facing budget cuts, a partial government shutdown, and leadership changes. Experts warn that cyber warfare is now a key part of modern conflict, and the U.S. must be vigilant in defending against potential Iranian retaliation.

The details

Cybersecurity experts are closely monitoring groups associated with Iran's Revolutionary Guard Corps and Ministry of Intelligence, which have gone silent in recent days. While there is no evidence of major attacks so far, experts say Iran has proven its ability to infiltrate and disrupt U.S. systems in the past, from banks and healthcare to oil and water utilities. They caution that Iran may seek to retaliate through cyber warfare, potentially causing severe damage.

  • As of March 4, 2026, cybersecurity experts say they are bracing for potential cyberattacks from Iran.

The players

Alexander Leslie

Senior advisor for government affairs at Recorded Future, a private intelligence company that tracks cyber threats against the U.S.

Jake Braun

Executive director of the Cyber Policy Initiative at the University of Chicago, and former White House official overseeing national cybersecurity strategy.

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What they’re saying

“Cyber is no longer auxiliary to conflict. It is part of the battlefield.”

— Alexander Leslie, Senior advisor for government affairs, Recorded Future

“Iran has attacked our banking system, they've attacked oil infrastructure, they've done mis- and disinformation during elections, they've attacked water utilities and other critical infrastructure. I think we can expect all those attacks, again, and more severe attacks.”

— Jake Braun, Executive director, Cyber Policy Initiative, University of Chicago

What’s next

Cybersecurity experts and government officials are closely monitoring the situation and will adjust resources and security measures as needed to defend against potential Iranian cyberattacks.

The takeaway

The threat of Iranian cyberattacks highlights the growing role of cyber warfare in modern conflicts, and the critical need for the U.S. to bolster its defenses against such threats. Experts warn that Iran has proven its ability to infiltrate and disrupt American systems, and the U.S. must remain vigilant in protecting its critical infrastructure.