Threat IntelHIGH

Iran's Cyber Counteroffensive Looms After Operation Epic Fury

TETenable BlogMar 3, 2026
IranOperation Epic Furycyber counteroffensiveDDoSwiper malware
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Basically, Iran-linked hackers might attack critical systems in response to a military operation.

Quick Summary

Iran-linked hackers are gearing up for a cyber counteroffensive after Operation Epic Fury. Critical infrastructure and opportunistic targets are at risk. It's essential to patch vulnerabilities and prepare for possible attacks. Stay informed and secure your systems!

What Happened

Tensions are escalating as Iran-linked threat actors prepare for a potential cyber counteroffensive following the recent military operation known as Operation Epic Fury. Launched on February 28, 2026, by the United States and Israel, this operation targeted Iran, prompting fears of retaliatory cyberattacks aimed at critical infrastructure? and other opportunistic targets?.

The Tenable Research Special Operations (RSO) team has flagged that several Iranian-affiliated groups, including the revived Altoufan Team and HANDALA, are likely to escalate their cyber activities. These groups have been known to shift from stealthy espionage tactics to more destructive operations, including wiper malware? and ransomware? attacks, especially against Western countries.

Why Should You Care

You should be concerned because critical infrastructure like power grids, water systems, and financial services could be at risk. Imagine your local power plant being hacked, leading to blackouts or even dangerous situations. This isn't just a problem for governments; it could affect your daily life, from disrupted services to stolen personal data.

With geopolitical tensions rising, the likelihood of these attacks increases. If you're a business owner or even an individual with online accounts, now is the time to be vigilant. Protecting your data and systems is crucial to avoid falling victim to these potential attacks.

What's Being Done

In response to these threats, experts recommend immediate action to safeguard against potential attacks. Here are some steps you should take:

  • Review and patch any known vulnerabilities in your systems.
  • Prepare for increased DDoS? (Distributed Denial of Service) and botnet activity.
  • Stay informed about updates from cybersecurity agencies and implement recommended security measures.

Experts are closely monitoring the situation, particularly how these threat actors will execute their planned operations and the effectiveness of defensive measures put in place. The next few weeks will be critical in determining the impact of these potential cyber counteroffensives.

💡 Tap dotted terms for explanations

🔒 Pro insight: Expect heightened DDoS activity as Iranian threat actors retaliate, targeting critical infrastructure in the West.

Original article from

Tenable Blog · Research Special Operations

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