ConflictClarifier

2026 Iran-Gulf Crisis Tracker
CC
Events Archive
strikeAug 26, 2026

CISA confirms hackers targeted over 100 US water systems during July | TechCrunch

Summary

U.S. cybersecurity agency CISA said it has observed cyberattacks targeting over 100 internet-exposed systems across the U.S. water and wastewater sector, amid a wave of hacks targeting American critical infrastructure. The number of affected systems provides new context to the scale of the ongoing cyberattacks targeting water providers in Michigan, Minnesota, and at least five other states. The federal agency, which oversees cybersecurity defense and critical infrastructure protections, said in an advisory that the attacks have largely targeted programmable logic controllers (PLCs), which are used to control physical systems and machinery across water providers, energy systems, and other parts of critical infrastructure. In recent weeks, hackers have targeted PLCs made by several manufacturers, including Rockwell, Schneider Electric, and more recently, Siemens. CISA previously said that the cyberattacks are relying in part on AI tools that rely on public information to develop scripts capable of targeting vulnerable Siemens PLCs. The intrusions have had little effect on water or waste water supplies to local communities, but have resulted in outages and disruption as incident responders investigate the breaches. CISA previously reported that some of the intrusions allowed hackers to modify affected PLCs to disable shutdown processes and alarms, potentially creating “unsafe conditions” without notifying the affected operators. Many of the affected communities are in rural or isolated areas, where disruption to critical infrastructure systems can affect a large area of people. Reports citing senior American officials say that U.S. intelligence believes Iran is likely behind the largely opportunistic attacks on water providers, likely in response to the U.S. and Israel-led war against Iran, but officials have fallen short of a concrete attribution. The intrusions have sparked broader concerns about the cybersecurity and resiliency of critical infrastructure across the United States. U.S. officials have warned in recent years that hackers working for China have been planting destructive malware on critical infrastructure ready to activate as a distraction in the event of an anticipated Chinese invasion of Taiwan. Russia has also been linked to several cyberattacks on water providers, and power and energy grids, across Europe as part of a growing campaign seen as aimed at testing the NATO alliance.

Actors involved

USIsraelIranRussiaChinaTaiwan

Sources

  • Zack WhittakerBy Zack Whittaker

    U.S. cybersecurity agency CISA said it has observed cyberattacks targeting over 100 internet-exposed systems across the U.S. water and wastewater sector, amid a wave of hacks targeting American critical infrastructure. The number of affected systems provides new context to the sc

See this event through different lenses

Compare how Western, Iranian, Israeli, Global South, and Pro-Peace perspectives frame this event.

Compare Perspectives

Community Notes

Community Notes

Loading notes...

Related events

strikeUnverifiedIran
1 source

Latest U.S. Iran War Dolly Parton World Politics Entertainment HealthWatch MoneyWatch Crime Space Sports Brand Studio The Free Press Local News Atlanta Baltimore Bay Area Boston Chicago Colorado Detroit Los Angeles Miami Minnesota New York Philadelphia Pittsburgh Sacramento Texas Live CBS News 24/7 Baltimore Bay Area Boston Chicago Colorado Detroit Los Angeles Miami Minnesota New York Philadelphia Pittsburgh Sacramento Texas 48 Hours 60 Minutes Shows 48 Hours 60 Minutes CBS Evening News CBS Mornings CBS Morning News CBS Reports CBS Saturday Morning The Daily Report The Dish Face the Nation Sunday Morning The Takeout Things That Matter The Uplift CBS News Investigates CBS News Confirmed Podcasts Newsletters Download Our App CBS News Team Executive Team Brand Studio Paramount+ Join Our Talent Community RSS Feeds U.

S. Iran War Dolly Parton World Politics HealthWatch MoneyWatch Entertainment Crime Sports The Free Press Watch CBS News U.S. military kills 4 in hit on alleged drug smuggling boat in the Caribbean The U.S. military killed four people in a strike on a boat they say was operated by drug smugglers.

CBS News' Eleanor Watson reports.

strikeUnverifiedUSIsraelIran
1 source

Iran and Oman still working on Hormuz accord: reports Iran and Oman are still working on the details of an agreement on the Strait of Hormuz, a senior Iranian source says after Iran's Revolutionary Guards said the two countries had agreed how to share the waterway and its revenues.

The elite force's spokesman also said the strait would not open unless the US met Iranian conditions under an interim ceasefire agreement that was struck in June before unravelling. Those conditions include an end to the US blockade on Iranian ports, compensation and removal of sanctions.

Iran and Oman have held on-and-off talks for weeks about controlling traffic through the strait, which handled one-fifth of global oil and liquefied natural gas shipments before the war began in February. Most shipping has since been shut down, driving global energy prices higher, as Iran and the US have tried to assert control over the channel, imposing separate blockades.

"An agreement with Oman over the Strait of Hormuz has not been finalised," the senior Iranian source told Reuters, adding that the talks were continuing on the details of an accord. A spokesman for Iran's Islamic Revolutionary Guard Corps (IRGC) had said Iran and Oman had reached an agreement on their shares of the territory and revenues.

"The Strait of Hormuz belongs to Iran and the country of Oman ... We have been in negotiations with Oman for about a month, and we have reached results that are acceptable to both sides," Hossein Mohebbi said in comments published by Iranian state media.

"In these negotiations, agreements have been reached regarding the share of each country in the waters of the strait and the share of Iran and Oman in its revenues," he added. It was not immediately clear at what stage of the negotiations the agreements had been reached.

Iran had said earlier this month that a deal on the strait was close. Following talks on Tuesday between Iran and Oman, Omani Foreign Minister Badr Albusaidi said he was "hopeful we will soon announce a temporary corridor for the Strait of Hormuz and practical arrangements to restore safe navigation".

The IRGC accused the United States of seeking to obstruct Iran's negotiations with Oman and said this had caused an agreement to be delayed. "If the United States stops obstructing and returns to the agreement, we can open the Strait of Hormuz within the framework of the agreement reached ...

If the United States does not accept our conditions, the Strait of Hormuz will not be opened under any circumstances," Mohebbi said. Although active hostilities between the US and Iran have largely subsided in recent weeks, diplomatic efforts to reach a peace deal have stalled, and continuing attacks on ships mean passage through the Strait of Hormuz remains perilous.

Iran announced a blacklist on Sunday of 45 ships in an apparent effort to stop ship-to-ship transfers used by Gulf energy producers to evade the Iranian blockade. Some companies plan to stop using vessels added to the blacklist, sources said. In an effort to tighten pressure on Iran's economy, the United States has threatened to punish countries that continue to do business with Iran, but said it would not impose penalties immediately.

The sanctions did not feature Chinese financial institutions suspected of facilitating oil exports from Iran that the US blockade has cut. Iran denounced the US effort to isolate its economy as an act of "gross lawlessness," expressing confidence that many countries would not join the pressure campaign.

Oil prices fell for a third day, dropping more than 1.5 per cent, following signs of renewed efforts to seek a mediated end to the war that began on February 28 with US and Israeli strikes on Iran. Secretary of State Marco Rubio told allies that the US did not expect to launch new strikes against Iran for now and would instead focus on other means of pressure, Axios reported on Tuesday.

strikeUnverifiedUSIran
1 source

State media reported that U.S. strikes near Tehran and in Semnan province, where ballistic missile and space programs are located, were carried out early Thursday. These incidents followed daylight attacks on Wednesday, indicating a reported increase in the frequency of strikes.

Location: Iran