# Tenable

Type: Company

Source: Space & Defense Intelligence Brief — https://getspacebrief.com/entity/tenable
Canonical HTML page: https://getspacebrief.com/entity/tenable

## Timeline

- **2026-07-31**: Tenable Attributes to Iran — Tenable researchers publicly conclude the attack bears the hallmarks of CyberAv3ngers, an IRGC-linked group.
- **2026-07-28**: CISA Alert Issued — CISA warns of active password manipulation attempts on PLCs and urges water utilities to disconnect from the internet.
- **2026-07-27**: Second Wave and Shutdown in Braham — Additional intrusions occur; the Braham water treatment facility temporarily shuts down due to compromised PLCs.
- **2026-07-26**: Initial Wave of Cyberattacks — Attackers begin targeting multiple water system PLCs across Minnesota, modifying passwords to disrupt operations.

## Recent coverage (1 stories)

### Iran-linked attack on 30+ water plants signals new era of gray-zone warfare
2026-07-31 04:27:10 · Sentiment: Bearish · Impact: 6/10 · Sources: 2

A coordinated cyberattack on Minnesota water systems highlights the growing threat of state-sponsored operations against critical U.S. infrastructure. Defense analysts view the incident as a test run for potential large-scale disruptions, underscoring the need for hardened OT networks and integrated defense strategies. The likely IRGC involvement blurs the line between espionage and kinetic readiness.
Full story: https://getspacebrief.com/story/iran-water-attack-defense-implications-2026

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