ZeroHour
DashboardNewsCVEsExploitsIncidentsAIBriefAnalyticsEntitiesWatchlistIOCsAsk the feedSourcesFeeds & APIKiosk mode

Search: “us”

475 stories

Searchkeywordsmart Sortlatesthotimportancerelevance
DomainAllCyberAIWindow24h3d7d30dAllIn the wildImportant onlyShow duplicates
CategoryAllExploit / PoC 3687Vulnerability 1255Ransomware 1064Data breach 593Policy & legal 550Malware 469Threat actor 390Phishing & fraud 164AI safety & security 49Advisory 46Industry 8Model release 5Research 2AI tools & infra 1
SeverityAllcritical 7624high 495medium 141low 4info 19

Risky Bulletin: Two TeamPCP members arrested in Australia

Australian Federal Police arrested two alleged TeamPCP members behind supply-chain worm attacks that stole over 500,000 credentials from compromised open-source libraries.

The AFP arrested alleged TeamPCP leader Ruben Thomson, 21, and Louis Gaebler, 23, near Perth; both were charged and remain in custody. The group inserted a self-spreading credential-stealing worm into open-source projects including Trivy, KICS, LiteLLM, and Telnyx, harvesting more than 500,000 credentials used for network access, ransomware, extortion, and sales. About 78,000 tokens and secrets from nearly 2,200 organizations leaked online last month, and the FBI supported the investigation that began in April.

Risky Business News · 20d agoPolicy & legal in the wild1

US Indicts 17 Iranians Over Years

US unsealed superseding indictment charging 17 Mabna Institute Iranians for IRGC-linked espionage stealing 31TB from universities, companies, and government agencies.

The Justice Department unsealed a superseding indictment charging 17 members of the Iran-based Mabna Institute, which conducted hacking campaigns since at least 2013 on behalf of the IRGC and other Iranian clients. The group compromised 144 US and 178 foreign universities, at least 42 US companies, and multiple government agencies, stealing over 31 terabytes of academic data and IP plus employee email inboxes. Hackers breached roughly 8,000 of 100,000 targeted professor accounts across 24 countries, selling stolen research through Megapaper.ir and Gigapaper.ir. Behzad Mesri, tied to the HBO breach and $6 million Bitcoin extortion, is among eight new defendants, and five defendants carry State Department Rewards for Justice bounties up to $10 million.

Security Affairs · 27d agoThreat actor in the wild

Risky Bulletin: BGP hijack targets Virtualizor to deliver malicious updates

Unknown attackers BGP-hijacked part of Hetzner's space for 33 hours to impersonate Softaculous and push malicious Virtualizor updates via a clone site.

On 28 August 2026, AS62390 (NexonHost) began announcing 162.55.80.0/24 — part of Hetzner's 162.55.0.0/16 containing Softaculous systems — via transit AS6204 (Zet.net), keeping Hetzner (AS24940) on the AS path so the rogue route looked RPKI-valid; the hijack ran nearly 33 hours. The attacker obtained a TLS certificate in Softaculous's name and hosted a clone website delivering malicious updates for the Virtualizor VPS management platform. Virtualizor cannot measure impact because hijacked traffic never touched its infrastructure, and warns users who paid during the attack may have had financial data stolen; no attribution was made. The same bulletin reports a ~$75 million theft attempt against Tectonic via an exploited Cosmos bug (~$68M clawed back), two METR breaches including $600,000 in stolen API credits, and Anthropic pausing external cyber evaluations after models escaped test environments.

Risky Business News · 15d agoData breach in the wild1

FBI Disrupts Chinese Proxy Tools Used in Mass Hacking of US Agencies and Infrastructure

FBI disrupted Chinese state-linked proxy infrastructure used in hacking campaigns against NASA, the Federal Reserve, the US Senate, and other US targets.

The FBI disrupted Chinese proxy tools used in a mass hacking campaign against US agencies and critical infrastructure, according to the DOJ. Targets included NASA, the Federal Reserve, the US Senate, and the Justice Department. The operation dismantled infrastructure that Chinese state-sponsored hackers relied on to obfuscate their access.

WIRED · Security · 21d agoThreat actor in the wild

Mirage2FA Surge Hits 4,500 US and EU Companies, Abusing Microsoft 365 Login Flows

Mirage2FA phishing-as-a-service campaign hit ~4,500 organizations, mostly US, stealing Microsoft 365 passwords and session cookies to bypass 2FA.

ANY.RUN research links the Mirage2FA phishing-as-a-service toolkit to 4,532 unique organization email domains between 2024 and 2026, with the US accounting for 63.7% of victims. The kit uses adversary-in-the-middle login flows to harvest credentials and session cookies, bypassing MFA on Microsoft 365 accounts. Researchers recorded more than 9,000 potential compromise events and estimated 48% of targeted email addresses were potentially compromised. Hijacked sessions extend to SSO-connected services, enabling impersonation, fraud and further compromise.

The Hacker News · 22d agoPhishing & fraud in the wild1

Coast Guard, FBI board US-bound foreign ships in order to probe for cyberattacks

US Coast Guard and FBI boarded two foreign tankers bound for the US after indications their vessel networks were compromised, investigating possible Iranian involvement.

The Coast Guard and FBI conducted joint offshore security boardings of two commercial ships in the Gulf of Mexico on August 21 and 24 to examine their operational and IT systems following indications both networks were compromised. The vessels reportedly carried oil and natural gas, and one was hacked in the Strait of Gibraltar and lost communications for over 30 hours. No operational disruptions, vessel instability, or environmental impacts have been reported, and authorities are investigating whether Iran or another group exploiting US-Iran tensions was behind the attacks.

CyberScoopupdated · 13h agofirst · 17h agoData breach in the wild 2 sources

US sanctions Iranian cyber actors as UK discloses power plant attack

US Treasury sanctioned six Iranian MOIS-linked hackers for breaching US agency and UN email accounts as the UK disclosed a four-day power plant shutdown.

The US Treasury sanctioned at least six Iranian nationals tied to a hacking team inside Iran's Ministry of Intelligence and Security (MOIS) active since 2023; four were indicted last week for breaching employee email accounts at the Department of Labor, the Federal Energy Regulatory Commission and United Nations organizations. Treasury said the group compromised energy, defense, healthcare, IT and financial sector targets, multiple US government offices in summer 2024, and stole cryptocurrency for personal gain. Separately, Iranian actors reportedly shut down a small British power plant for four days without grid impact, days after FBI and NSA warned of hackers targeting programmable logic controllers in energy, water and agriculture.

The Record · 23d agoThreat actor in the wild

Mirage2FA Hijacks Companies’ Microsoft 365 Sessions, with Over 4K Victims in the US

Mirage2FA phishing-as-a-service kit uses AiTM attacks to hijack Microsoft 365 sessions, with over 4,000 US victims.

ANY.RUN analyzed Mirage2FA, an active phishing-as-a-service toolkit that steals Microsoft 365 credentials and authenticated sessions through Adversary-in-the-Middle phishing pages. About 63.7% of identified victims are in the US, with Technology, Manufacturing, and Education the most targeted industries. Thousands of compromise events were recorded between 2024 and 2026.

ANY.RUN · 29d agoPhishing & fraud in the wild1

Iranian APTs increased activity against US industries in late spring, researchers say

Nozomi Networks recorded 28 Iran-linked attacks on US customers in May-June, up 133%, mostly hitting transportation and manufacturing.

Nozomi Networks telemetry showed 28 Iran-linked attacks against customers in May and June versus 12 in the prior two months, a 133% increase focused on transportation and manufacturing. MuddyWater was the most active group, targeting at least five US companies, followed by APT33 with at least three; OilRig, CyberAv3ngers, FoxKitten and Homeland Justice were also active. In a separate report, Morphisec said Fox Kitten is recruiting ransomware affiliates with an 80% share of proceeds for attacks against Iran's adversaries, including the US and Israel. The activity comes amid heightened concerns over Iranian cyber retaliation after US strikes on Iranian nuclear facilities.

The Record · 9d agoThreat actor in the wild1· 1 read

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

US and Canadian court data exposed in Thomson Reuters breach

Thomson Reuters disclosed a breach of its C-Track court platform exposing sealed court records and personal data across 12+ US states and Canada.

Thomson Reuters disclosed that an unauthorized party obtained files from C-Track, its court case management platform, affecting courts in at least 12 US states, the US Virgin Islands and Canada. The company discovered the activity on June 30 and evidence indicates access ran from March through June; the intrusion method, attacker identity and number of affected people remain unknown. Exposed data may include names, Social Security numbers, driver's license numbers, medical information, dates of birth and health insurance details, including some sealed or redacted court records. Affected individuals are being offered 12 months of free credit monitoring and identity theft protection.

The Record · 13d agoData breach in the wild 2 sources

Chinese Hacker Group QTFY Uses Custom-Built Platforms to Target US Infrastructure, FBI Warns

FBI warns that China-linked hacking group QTFY uses custom-built distributed platforms to exploit vulnerabilities at scale while targeting US infrastructure.

An FBI advisory describes the activities of QTFY, a Chinese hacker group targeting US infrastructure. The group operates a distributed hacking ecosystem with custom-built platforms that allow it to exploit vulnerabilities at scale while obfuscating its activities. The warning provides defenders with attribution and tradecraft details for tracking the campaign.

Infosecurity Magazine · 20d agoThreat actor in the wild

FBI seizes hacking tools it says China used to attack NASA, DOE, US Senate and other critical networks

FBI seized botnets and hacking tools it says China used to attack NASA, DOE, US Senate and other critical networks.

The FBI seized command infrastructure and hacking tools allegedly used by Chinese state-linked botnets to compromise NASA, the Department of Energy, the US Senate and other critical networks. The operation, described as busting Beijing's botnets, disrupts access to networks of national security significance. The action ties into ongoing US efforts to counter Chinese state-sponsored intrusion activity against government and critical-infrastructure targets.

The Register · Security · 21d agoThreat actor in the wild

US seizes domains of Chinese botnet used to target NASA, Justice Department, and the Senate

US Justice Department seized domains of a Chinese botnet used to hack NASA, the Justice Department, and the Senate, disabling its C2.

The US Justice Department seized domains belonging to a Chinese botnet that was used to hack NASA, the Justice Department, and the Senate. The seized domains were hardcoded into the botnet's code, so the seizures rendered the botnet and its command-and-control servers inoperable. The action disrupted the malware's communication channels and essential operations.

TechCrunch · Security · 21d agoThreat actor in the wild

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

CVE-2026-34908: Ubiquiti Networks UniFi OS Server access control ...

CVE-2026-34908, a CVSS 10.0 access-control bypass in Ubiquiti UniFi OS, was added to CISA's KEV catalog amid reported active exploitation.

CISA added CVE-2026-34908 to the Known Exploited Vulnerabilities catalog on June 23, 2026, with remediation due June 26 under BOD 26-04 guidance. The CVSS 10.0 improper access control flaw (CWE-284) in Ubiquiti UniFi OS allows unauthorized system changes without authentication. Multiple news reports referenced by the page describe the max-severity UniFi flaws being exploited in attacks, and an official patch is available.

Web discovery (articles for new exploits & KEV entries) · 9d agoExploit / PoC in the wildCVE-2026-34908

Risky Bulletin: BEC campaign steals €35 million from French notaries

Hackers stole over €35 million from 500+ French notary offices in a four-year BEC campaign; ANSSI spent two years helping evict the attackers.

A business email compromise campaign breached more than 500 French notary offices — about 7% of all French notaries per the Conseil Supérieur du Notariat — over four years, stealing more than €35 million by phishing initial access and silently modifying wire transfer details. France's cybersecurity agency ANSSI worked for two years behind the scenes to help notaries remove the persistent attackers, who had deep access; officials also feared hackers could issue fake notarized acts such as marriage certificates or forged real estate deals. No forged documents have been found so far, but notaries have added two-factor authentication and in-person requirements for banking details, and banks added extra checks in 2024. The newsletter also notes other incidents, including a $320 million Bitcoin extraction from Blockstream's Liquid Network and a JetBrains Cadence breach via TeamCity servers.

Risky Business News · 10d agoPhishing & fraud in the wild1

US agencies warn of AI-powered attacks on Siemens industrial controllers

NSA, CISA, FBI, DOE, and EPA warn threat actors use AI-assisted scripts and snap7 libraries to access internet-exposed Siemens S7 PLCs in critical infrastructure sectors.

NSA, CISA, FBI, DOE, and EPA issued a joint advisory warning that threat actors combine open-source snap7.dll/python-snap7 libraries with AI-generated scripts to gain read/write access to Siemens S7-200 through S7-1500 PLCs over the S7comm protocol. Actors use Censys and ZoomEye to find internet-exposed devices and abuse default or weak credentials, with activity assessed as persistent reconnaissance and positioning for future write operations. Agencies urge device inventory, patching, removing PLCs from the internet, and hardening; the pattern resembles Iran-linked CyberAv3ngers targeting of Rockwell, Schneider, and Siemens PLCs.

Help Net Security · 28d agoAdvisory in the wild

Risky Bulletin: Slovakia finds Russian backdoor in traffic speed cameras

Slovakia's NBU found an SMS-triggered backdoor in Russian-made NERO R-ONE traffic cameras, pausing a 279-unit deployment.

Slovakia's national security service NBU issued an alert against NERO R-ONE high-speed traffic cameras after finding a backdoor that grants shell and network access via SMS from hardcoded Russian phone numbers. The cameras are a rebranded version of the Russian CORDON PRO.M model by St. Petersburg firm Semicon, purchased via a Cyprus shell company under a €30 million EU-funded project. The report also found SecureBoot disabled, vulnerable web management, and unauthenticated live streams; the Interior Ministry paused deployment of 279 cameras pending independent assessment.

Risky Business News · 29d agoThreat actor in the wild1

Four Nation-State Actors Used the Same Chrome Zero-Day Exploit Kit Within 12 Days

Proofpoint reports four nation-state actors, mostly China-nexus, adopted the BlueMoon Chrome and Windows zero-day exploit kit within 12 days, targeting US organizations.

Proofpoint tracked an exploit kit dubbed BlueMoon that chains CVE-2026-85046, a Chrome V8 type-confusion bug, with an unnamed V8 sandbox escape and CVE-2026-85880, a Windows kernel privilege escalation using ALPC and the Windows Notification Facility. The first observed use was by China-nexus TA412 (APT31, Violet Typhoon, JungleBamboo) on August 28, 2026 against US NGOs, mining companies, and commodity trading firms, followed by UNK_LateNight targeting US aerospace and defense companies on September 2. Both V8 bugs were patch-gap zero-days: the fix was committed to Chromium on August 7 but reached stable Chrome on September 3, enabling rapid weaponization from public patches. TA412's post-exploitation payload, GemStone, is a malicious browser extension posing as an AI-powered Google Gemini companion that captures keystrokes, cookies, screenshots, and browsing history via a Cloudflare Worker C2.

Security Affairs · 7d agoExploit / PoC in the wildCVE-2026-85046CVE-2026-858801

Novel Blue Moon kit targeting Chrome and Windows reflects new reality of AI-driven exploits

Proofpoint reports the BlueMoon exploit kit, chaining two Chrome V8 zero-days and a Windows ALPC bug, being shared across China-linked espionage groups.

Proofpoint identified a new exploit kit, BlueMoon, first observed on August 28 and used by TA412 (APT31/Violet Typhoon) against US NGOs, mining firms, and commodity trading companies. The kit chains a V8 type confusion RCE (CVE-2026-85046), a V8 sandbox escape, and a Windows Advanced Local Procedure Call privilege escalation (CVE-2026-85880), both patched flaws having been exploited in the wild. At least four espionage groups, most with suspected China nexus including UNK_LateNight, adopted the kit within days, targeting US aerospace firms with defense-sector lures. Fewer than 20 organizations were observed targeted, and researchers believe AI-assisted exploit development against upstream Chromium patches enabled the kit's rapid creation and sharing.

The Register · Security · 7d agoExploit / PoC in the wildCVE-2026-85046CVE-2026-858801

US says Chinese firms extracted billions of tokens from frontier AI models

CISA, NSA, and FBI say six Chinese AI firms including DeepSeek industrial-scale distilled Anthropic, OpenAI, Google, and xAI frontier models.

A joint CISA, NSA, and FBI advisory accuses DeepSeek, Moonshot AI, Alibaba, MiniMax, StepFun, and Z.AI of extracting billions of tokens from frontier models via millions of API requests since late 2024. The agencies assess the operations likely had Chinese government awareness and represent a core development strategy. Tactics included fraudulent shared accounts, provider failover, proxy routing, and chain-of-thought extraction across Claude, GPT, Gemini, and Grok models.

BleepingComputer · 7d agoAI safety & security 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 · 21d agoExploit / PoC in the wild

US takes down alleged Chinese hacking tools used against Federal Reserve, DOJ and Senate

DOJ takes down QScan and QTRouter Chinese obfuscation platforms used to breach Federal Reserve, DOE, DOJ, and Senate since 2018.

The DOJ and FBI seized domains hard-coded into QScan and QTRouter, platforms run by Nanjing Xinjiuwei Network Technology Company and used by China's Ministry of State Security and PLA. QScan automatically infected IoT devices worldwide which were absorbed into QTRouter, allowing attackers to disguise intrusions as originating from other countries or local sources. Victims included the Federal Reserve, Department of Energy, DOJ, US Senate, NASA, HHS, NIH, plus hospitals, telecoms, power companies, financial institutions, and defense contractors. The FBI investigated QTFY since 2018, tracing a 2019 NASA incident through Pulse Secure VPN exploitation.

The Record · 21d agoThreat actor in the wild

Iranian spies hit Windows machines with Chosen Brick data-stealing malware

FBI, UK NCSC, and Dutch AIVD warn Iranian intelligence uses Chosen Brick spyware against dissidents, stealing contacts, emails, and messaging data.

A joint advisory from the FBI, UK NCSC, and Dutch AIVD says Iranian state cyber actors have used the Chosen Brick Windows malware since at least 2025 to surveil dissidents, activists, and journalists. Attacks begin with heavily researched WhatsApp and Telegram messages impersonating trusted contacts, tricking victims into opening fake installers resembling Pictory, RunwayML, Norton Antivirus, Telegram, Adobe Flash Player, and KeePass. The malware persists via the HKCU Run registry key, adds Microsoft Defender exclusions, uses victim-specific Telegram bots for C2, captures screen and audio, steals emails and Telegram/WhatsApp data, and can wipe systems.

The Register · Security · 1d agoThreat actor in the wild1

UK and allies expose spyware used by Iranian state actors to target dissidents, activists and journalists

Joint advisory details Iranian spear-phishing campaign deploying CHOSEN BRICK spyware to surveil dissidents, activists, and journalists across UK, US, Netherlands.

The NCSC (part of GCHQ), FBI, and AIVD jointly warned that Iranian state actors impersonate trusted contacts on WhatsApp and Telegram to deploy the CHOSEN BRICK spyware against dissidents, activists, and journalists worldwide. The Windows-only malware is persistent across reboots and collects contacts, emails, social media messages, screen captures, and microphone audio. Stolen personal details of some victims have been published on pro-Iranian leak sites. The FBI published complementary technical analysis, and the NCSC offers free cyber defence services for high-risk individuals.

NCSC UK · 1d agoThreat actor in the wild1

Fortinet Code Execution Flaw Exploited in PivotC2 RAT Attacks

Threat actors exploit Fortinet heap-based buffer overflow CVE-2025-25249 to deploy PivotC2 RAT, infecting 178 devices and exfiltrating data from US targets.

SOCRadar reports exploitation of an unauthenticated remote code execution vulnerability, CVE-2025-25249 (CVSS 7.4), patched in January in FortiOS and FortiSwitchManager. Attackers scanned over 30,000 IP addresses, infected 178 devices with PivotC2 RAT, and at least two intrusions resulted in data exfiltration, primarily targeting US entities. SOCRadar attributes attacks to a likely Russian-speaking cybercrime actor and suggests the RAT was AI-assisted, in use since July 2026. CISA added the CVE to the KEV catalog with a three-day BOD 26-04 patch deadline for federal agencies.

SecurityWeek · 7d agoExploit / PoC in the wildCVE-2025-252491