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How much of a problem is AI’s water use?

Analysis finds AI's water footprint growing, with data-center location and cooling technology largely determining the local environmental impact.

The article examines the growing water consumption of AI data centers and argues that real-world impact varies significantly depending on where facilities are sited and which cooling technology they use. It is a contextual analysis of AI's environmental footprint rather than news of a specific incident, breach, or release.

Ars Technica · AI · 20d agoAI industry

CISA confirms hackers targeted over 100 US water systems during July

CISA says hackers targeted over 100 US water systems in July amid suspected Iran-backed attacks on critical water infrastructure.

CISA confirmed that hackers targeted more than 100 US water systems during July. The federal agency's warning comes amid a wave of suspected Iran-backed cyberattacks against critical water infrastructure across the United States. The available text does not specify intrusion methods, compromised utilities by name, or data impact.

TechCrunch · Security · 21d agoThreat actor in the wild

CISA Warns Water Utilities: Find Your Exposed PLCs Before Attackers Do

CISA urged water utilities to secure internet-exposed PLCs after July 2026 attacks compromised over 100 US water and wastewater systems, suspected Iran-linked.

CISA's exposure-reduction guidance, published August 21, follows July 2026 attacks in which threat actors remotely accessed PLCs connected directly through cellular modems, changed device IP addresses and passwords, and in some cases disabled alarms and shutdown processes without notifying operators. Iran is the suspected actor, though officials stopped short of formal attribution. CISA recommends routing remote access through centrally managed secure gateways, phishing-resistant MFA, unique credentials, and external scanning of industrial protocols such as Modbus, EtherNet/IP, DNP3, BACnet and OPC UA.

Security Affairs · 20d agoExploit / PoC in the wild

US data centers could consume more natural gas than Germany and Japan combined by 2035

BloombergNEF projects US data centers will consume about 18 billion cubic feet of natural gas daily by 2035, exceeding Germany and Japan combined.

A new BloombergNEF report forecasts US data centers will consume roughly 18 billion cubic feet of natural gas per day by 2035, nearly double the estimate from nine months ago. On-site gas plants planned by Meta, Microsoft, Google, and Amazon would use 2.9-3.4 billion cubic feet per day, while grid-connected data centers drive an additional 15 billion cubic feet per day of power-sector gas demand. The added demand would generate about 1 million metric tons of extra greenhouse gas pollution daily, roughly 12% of current US emissions.

TechCrunch · AI · 1d agoAI industry

Water sector example added to the NCSC’s Secure connectivity principles

NCSC UK adds a water sector example to its Secure Connectivity Principles, the first ICS community-authored content on its site.

The UK NCSC has added a water sector example to its Secure Connectivity Principles guidance. It is the first content authored by the Industrial Control System Community of Interest to appear on ncsc.gov.uk. The guidance helps ICS operators apply secure connectivity practices.

NCSC UK · Aug 11, 2026Advisory

White House Launches Pilot Program in Texas to Protect Water Infrastructure

White House launches Project Watershed 250, giving Texas water providers federal and private-sector cybersecurity resources amid rising nation-state threats to critical infrastructure.

The White House launched Project Watershed 250, a pilot program providing water providers in Texas with federal and private-sector cybersecurity resources. The initiative comes amid rising nation-state threats targeting water utilities and other critical infrastructure in the United States.

Infosecurity Magazine · 15d agoPolicy & legal

Florida water agency latest to confirm cyber incident as feds warn of nation

A ransomware gang hit Florida's St. Johns River Water Management District as CISA warned of IRGC-linked CyberAv3ngers attacks on exposed Unitronics water-sector PLCs.

The St. Johns River Water Management District, which oversees Florida drinking-water supply planning, confirmed suspicious activity in its IT environment and said containment measures were implemented; a ransomware gang claimed the attack and shared samples of stolen data. Separately, CISA, FBI, NSA, EPA and Israel's INCD warned that IRGC-affiliated CyberAv3ngers are actively compromising Israeli-made Unitronics Vision Series PLCs in the water sector using default credentials since at least November 22. The group, motivated by opposition to Israel-linked products, defaces controller interfaces and could cause deeper cyber-physical effects. Shadowserver found at least 539 Unitronics PLC instances still exposed online, and CNN reported fewer than 10 US water facilities faced recent attacks.

The Record · 8d agoRansomware in the wild 3 sources

Password spraying campaign targets AWS root user accounts across 150+ organizations

Datadog researchers observed a password spraying campaign attempting to authenticate as AWS root users across 150+ organizations.

Datadog Security Research observed a large-scale password spraying campaign attempting to authenticate as AWS root user accounts across more than 150 organizations. The campaign targeted root credentials rather than standard IAM users, and no confirmed compromises are stated in the report. Root account access would grant full control of affected AWS environments, making this a significant credential-attack campaign for cloud defenders.

Datadog Security Labs · 16d agoThreat actor in the wild

Iran-Linked Hackers Target More US Water Infrastructure in New Jersey and Alabama

Iran-linked hackers hit water utilities in New Jersey and Alabama, bringing confirmed US water-infrastructure attacks to at least 12 states.

Iran-linked hackers attacked the Cape May Sewer Department and Woodbine Water Department in New Jersey and the Childersburg Water, Sewer and Gas system in Alabama on July 27, bringing confirmed US water-sector attacks to at least 12 states since late July. The intrusions targeted internet-exposed industrial control systems, including Rockwell Automation PLCs, with roughly 12 hours of impact in New Jersey and no impact on water quality or service. The FBI confirmed seven affected states by July 30, and CISA has urged utilities to remove PLCs from direct internet exposure. New York announced more than $9 million in grants to strengthen water-sector cybersecurity.

Security Affairs · Aug 11, 2026Threat actor in the wild

Identifying a BOLA Vulnerability in Harbor, a Cloud

Unit 42 found a BOLA flaw, CVE-2024-22278 (CVSS 6.4), letting Maintainers improperly alter Harbor project metadata; fixed in versions 2.9.5, 2.10.3, and 2.11.0.

Unit 42 researchers identified a broken object-level authorization flaw, CVE-2024-22278, in Harbor, a CNCF-graduated cloud-native container registry with 1.8 million downloads. The flaw (CVSS 6.4) lets users with the Maintainer role create, update, and delete project metadata, actions reserved for ProjectAdmin, risking data exposure, integrity compromise, and circumvention of vulnerability scanning. Harbor patched the issue in versions 2.9.5, 2.10.3, and 2.11.0. The finding came from Unit 42's automated BOLA detection tool built on generative AI.

Palo Alto Unit 42 · Aug 17, 2026VulnerabilityCVE-2024-22278

Large Language Models for HVAC Operations in Building Energy Systems: A Critical Review of Methods, Applications, and Deployment Readiness

Systematic review of 66 studies finds LLMs for HVAC operations are mostly research-stage, with no ready-now deployment and only four pilot-level studies.

A critical review of 66 peer-reviewed studies from 2023 to March 2026 examines LLMs for HVAC operations in building energy systems. Only four studies reach pilot-level evidence, none reports sustained operational deployment, and 63 of 66 are research-only. Conventional ML, MPC, and RL remain dominant for high-frequency control and short-horizon forecasting, and the evidence supports LLMs primarily as semantic and workflow layers rather than autonomous controllers.

arXiv cs.AI / cs.LG / cs.CL · 12d agoAI research

Patch Tuesday to Pentest Wednesday: How an Equipment Rental Company Is Turning Continuous Testing Into Continuous Exposure Management

An equipment rental company uses Horizon3 NodeZero for continuous exposure management, surfacing an SSH key exposure in eight hours versus annual pentesting.

The company moved from periodic penetration testing to continuous exposure management using the NodeZero Proactive Security Platform, feeding telemetry into a Splunk-based CTEM pipeline via Horizon3 APIs. NodeZero exposed SSH RSA key pairs from a PHP web server change about eight hours after introduction and found more findings in 12 hours than a third-party engagement found in roughly 30 days. An Active Directory password audit of 15,000 passwords found about 300 identical or similar compromised passwords, driving a banned-password list, 12-character minimums, service desk changes, and self-service reset rollout; users with similar passwords later dropped from 880 to 209. NodeZero also validated a suspected Cisco vulnerability as exploitable.

Horizon3.ai · 7d agoIndustry

In most cities, nobody owns the whole network

Former Waco CIO argues cellular-connected water controllers sit outside scanned networks, and accountability plus operating-budget funding—not technology—block segmentation.

Writing as Waco, Texas's former CIO, the author describes July water-sector intrusions that CISA linked to over 100 compromised systems, typically controllers on public cellular links absent from asset lists. The FBI and EPA reported incidents at utilities in at least seven states since July 27, and a Clayton County, Georgia pump station failure triggered a boil-water advisory. He argues accountability and funding—using mechanisms like the Texas Water Development Board's new cybersecurity scoring criteria—are the binding constraints, citing Waco's 43-day segmentation of five treatment plants with operating funds.

CyberScoop · 8d agoIndustry in the wild

DDoS attacks hit record scale as 1 Tbps+ campaigns become more common

Cloudflare's H1 2026 report shows record DDoS scale, with more 1 Tbps+ attacks, multi-vector campaigns, and hacktivist surges against governments.

Cloudflare's H1 2026 DDoS Threat Report documents record-scale attacks, with a significant increase in campaigns exceeding 1 Tbps and April 2026 peaking at 6.46 trillion requests and 165 PB. Most network-layer attacks stayed small and short — 96.62% under 500 Mbps and 90.60% under 10 minutes — but multi-vector campaigns combining HTTP floods with DNS and CLDAP amplification grew. Operation Epic Fury drove 149 hacktivist DDoS claims against 110 organizations in 16 countries, hitting the government sector hardest, and Brazil overtook the US as the leading attack source country.

Help Net Security · Aug 13, 2026Threat actor in the wild

OpenAI Announced $1B in Defensive Tools for Water Utilities

OpenAI pledges $1 billion in subsidized Daybreak cyber models and training for water utilities, grid operators, and other critical-infrastructure defenders.

OpenAI announced Daybreak for Frontline Defenders on September 3, 2026, committing $1 billion in product credits and subsidized access to its Daybreak cyber models, training, and technical support for under-resourced defenders. Priority access goes to water and wastewater utilities, electric grid operators, state and local governments, community banks, nonprofits, and open-source maintainers; around 2,000 organizations already use Daybreak, which includes Daybreak Blue and Daybreak Red tiers. The program includes an MS-ISAC pilot, the Daybreak Defense Network with 35+ partner products (including HackerOne), and publication of OpenAI's Defense Factory automated vulnerability discovery architecture; it launched the same day OpenAI shipped a model it internally classifies as Critical for cyber capability.

Security Affairs · 10d agoAI industry

Tell HN: OpenAI brings back 5 hour limit for plus and business standard users

OpenAI reinstated a 5-hour usage limit for Plus and Business Standard subscribers, sparking Hacker News debate about subsidized inference pricing and subscription value.

A Hacker News discussion reports that OpenAI has brought back a 5-hour usage limit for Plus and Business Standard users. Commenters debated whether cheap tokens are a subsidized customer acquisition strategy, whether AI companies have sustainable margins on inference, and how switching costs between providers affect dependency. The thread reflects community sentiment on pricing and usage caps rather than an official policy announcement.

Hacker News · security · 9d agoAI industryHN 126↑ · 142 comments

Wiz Penetration Test Findings is now GA

Wiz announces general availability of Penetration Test Findings, unifying pen-test results with real-time cloud context for continuous exposure management.

Wiz has made its Penetration Test Findings capability generally available on its cloud security platform. The feature integrates point-in-time penetration test findings with real-time cloud context, aiming to turn static pen-test reports into continuous exposure management. This gives security teams a unified view for prioritizing cloud findings alongside offensive testing results.

Wiz Blog · 28d agoTools

Show HN: Sunk Cost – How long until a local LLM rig pays for itself?

Show HN tool 'Sunk Cost' calculates when a local LLM rig breaks even versus falling API prices, factoring electricity cost and inference speed.

A Hacker News Show HN project called Sunk Cost models the payback period of buying local LLM hardware instead of paying API prices. Users can adjust assumptions like electricity cost ($/kWh) and API speed (tokens/second), and the model assumes API prices keep falling. Where local speed is unmeasured, it is estimated from memory bandwidth divided by bytes read per token, and labelled as an estimate.

Hacker News · security · 1d agoAI tools & infraHN 30↑ · 31 comments

BGP Role model: tracking the adoption of RFC 9234

Cloudflare measured RFC 9234 adoption, finding BGP Role deployment growing but two Tier 1 networks unexpectedly stripping the Only to Customer attribute.

Cloudflare analyzed adoption of RFC 9234, which introduces BGP Roles and the Only to Customer (OTC) attribute allowing routers to reject route leaks on their own. The measurement study assessed who has deployed the mechanism in the global routing table. It found two Tier 1 networks unexpectedly stripping OTC attributes, which could undermine leak protection.

Cloudflare Blog · 29d agoResearch

Over 500 Critical Infrastructure Organizations Hit by Medusa Ransomware

FBI warns Medusa ransomware-as-a-service has hit over 500 critical infrastructure organizations while significantly improving its tactics, techniques and procedures.

The FBI warned that the Medusa ransomware-as-a-service operation has compromised more than 500 critical infrastructure organizations. The agency said the group has significantly enhanced its tactics, techniques and procedures, making it harder for defenders to counter. Defenders in critical infrastructure sectors should review exposure and harden against Medusa's updated TTPs.

Infosecurity Magazine · 28d agoRansomware in the wild

Wiz on Wiz: How the Wiz FinOps Team Uses Wiz Cloud Cost

Wiz details how its internal FinOps team uses Wiz Cloud Cost to investigate and optimize cloud spend with deep security context.

Wiz published a walkthrough describing how its own FinOps team uses the Wiz Cloud Cost product for cloud cost investigation and optimization. The post emphasizes pairing cost data with deep cloud context to identify and act on spend drivers.

Wiz Blog · Aug 14, 2026Industry

Cloudflare DDoS Threat Report H1 2026: 1 Tbps attacks soar as DNS floods and geopolitical tensions drive a new wave

Cloudflare's H1 2026 report records a 519% surge in hyper-volumetric DDoS attacks, driven by DNS and CLDAP reflection amid geopolitical tensions.

Cloudflare detected a 519% surge in hyper-volumetric DDoS attacks across its network during the first half of 2026. Attack traffic was driven heavily by DNS and CLDAP reflection vectors, with 1 Tbps attacks becoming far more common. The report attributes reshaped attack patterns to major geopolitical conflicts.

Cloudflare Blog · Aug 11, 2026Research

From Hypervisor to Container: Cloud Security Vulnerabilities, Defense Mechanisms, and Open Challenges

Survey of 120+ cloud security papers (2008-2025) reviews hypervisor and container isolation attacks, scoring defenses with the ADPO framework and CIA impact scale.

This survey reviews over 120 security publications from 2008 to 2025 on breaches of cloud isolation boundaries via virtual machines and containers. Threats examined include VM escape, VM hopping, CPU cache side-channels, container breakouts, vulnerable container images, and DDoS attacks. The authors introduce ADPO, a 0-3 scoring framework rating defenses on accuracy, deployment ease, performance impact, and operational overhead, plus a 1-5 CIA severity mapping for attack impact.

arXiv cs.CR · 1d agoResearch