Secure Bulletin Navigating the cyber sea with knowledge
Home > Tag > critical infrastructure
#critical infrastructure

Thousands of Exposed Rockwell PLCs Leave US Water Utilities Open After Multi-State Attack Wave

8 August 2026  |  dark6  |  Vulnerability

A wave of attacks against U.S. water and wastewater utilities has renewed scrutiny of how many industrial controllers sit exposed to the open internet. Forescout researchers count over...

>> read more

Iran’s Cyber Playbook Shifts From Loud Attacks to Patient, Long-Term Access

23 July 2026  |  dark6  |  Cybercrime

A new SentinelOne assessment finds Iran-linked hacking groups increasingly favor quiet, persistent access over destructive attacks, planting footholds in cloud accounts, IT suppliers, and industrial systems that could...

>> read more

CISA Warns: Hackers Are Targeting U.S. Fuel Tank Monitoring Systems Across Critical Infrastructure

8 June 2026  |  dark6  |  Vulnerability

CISA, the FBI, NSA, and five other federal agencies have issued a joint advisory confirming active cyberattacks against Automatic Tank Gauge (ATG) systems used in US energy, chemical,...

>> read more

China-Aligned SHADOW-EARTH Deploys ShadowPad, IOX Proxy, and WMIC in Multi-Stage Espionage Campaign Across Asia

2 May 2026  |  dark6  |  Malware

A China-aligned threat group has conducted a prolonged espionage campaign against government agencies and critical infrastructure across eight Asian countries. The attackers used ShadowPad delivered via DLL sideloading,...

>> read more

Lotus Wiper: New Destructive Malware Targets Venezuelan Energy Sector in Geopolitically Motivated Attack

23 April 2026  |  dark6  |  Hacktivism

A newly discovered wiper dubbed Lotus Wiper has been deployed against energy and utilities targets in Venezuela. Masquerading as HCL Domino components and triggered via a NETLOGON flag...

>> read more

CyberAv3ngers: Iran-Linked IRGC Hackers Target Rockwell PLCs Across U.S. Critical Infrastructure

19 April 2026  |  dark6  |  Malware

A joint CISA advisory warns that Iran-linked CyberAv3ngers (IRGC-CEC) are actively exploiting internet-exposed Rockwell Automation PLCs across U.S. water, energy, and government sectors. Over 5,200 devices are publicly...

>> read more

BLACKWATER Ransomware Debuts with Devastating Strike on Major Turkish Hospital Network, Claims 3.3 TB Stolen

17 April 2026  |  dark6  |  Ransomware

A newly emerged ransomware group called BLACKWATER has claimed its first major victim: Medical Park Hospitals Group in Turkey, with 36 hospitals affected and 3.3 terabytes of sensitive...

>> read more

MuddyWater-Linked APT Campaign Scanned 12,000+ Systems Before Striking Middle East Critical Infrastructure

16 April 2026  |  dark6  |  Malware

Iran-linked threat group MuddyWater is behind a sophisticated espionage campaign that scanned over 12,000 systems in the Middle East before stealing passport records and payroll data from an...

>> read more