PLC

Pierluigi Paganini August 27, 2026
CISA Warns Water Utilities: Find Your Exposed PLCs Before Attackers Do

CISA urges water utilities to find and secure internet-exposed PLCs after July attacks showed how easily exposed industrial systems can be compromised. Over 100 internet-exposed systems in the US water and wastewater sector got hit by cyberattacks in July 2026, and CISA’s response wasn’t just an incident report, it was a how-to guide for making […]

Pierluigi Paganini August 20, 2026
NSA, CISA, FBI, DOE, and EPA Warn of Active AI-Assisted Attacks on Siemens S7 PLCs

NSA, CISA, FBI, DOE, and EPA warn of active AI-assisted attacks against Siemens S7 PLCs across US critical infrastructure sectors. Five U.S. federal agencies issued a joint advisory this week warning of an active hacking campaign against Siemens S7 Series programmable logic controllers. The advisory, CISA AA26-231A, is co-signed by NSA, FBI, DOE, and EPA […]

Pierluigi Paganini August 02, 2026
CISA Urges Utilities to Remove Internet-Exposed PLCs After Minnesota Attacks

After attacks hit 30+ Minnesota water systems, CISA urged utilities to remove internet-exposed PLCs and strengthen OT security. Between Sunday and Monday, July 26 and 27, a coordinated cyberattack hit operational technology (OT) systems at more than 30 community water utilities across the state, according to Minnesota IT Services (MNIT). “A coordinated cyberattack targeted operational technology […]

Pierluigi Paganini April 08, 2026
U.S. agencies alert: Iran-linked actors target critical infrastructure PLCs

U.S. agencies warn Iran-linked threat actors are targeting internet-exposed PLCs used in critical infrastructure networks. U.S. agencies, including the FBI and CISA, warn that Iran-linked hackers are targeting internet-exposed Rockwell/Allen-Bradley PLCs used in critical infrastructure. The agencies published a joint advisory involving multiple federal organizations. “Iran-affiliated advanced persistent threat (APT) actors are conducting exploitation activity […]

Pierluigi Paganini September 13, 2022
Pro-Palestinian group GhostSec hacked Berghof PLCs in Israel

The hacktivist collective GhostSec claimed to have compromised 55 Berghof PLCs used by Israeli organizations. Pro-Palestinian Hacking Group GhostSec claimed to have compromised 55 Berghof programmable logic controllers (PLCs) used by Israeli organizations as part of a Free Palestine campaign. On September, 4th, 2022, GhostSec announced on social media and its Telegram channel that it has compromised […]

Pierluigi Paganini June 28, 2022
Two critical flaws affect CODESYS ICS Automation Software

CODESYS addressed 11 security flaws in the ICS Automation Software that could lead to information disclosure and trigger a denial-of-service (DoS) condition. CODESYS has released security patches to fix eleven 11 vulnerabilities in its ICS Automation Software. CoDeSys is a development environment for programming controller applications according to the international industrial standard IEC 61131-3. The […]

Pierluigi Paganini July 13, 2021
ModiPwn flaw in Modicon PLCs bypasses security mechanisms

ModiPwn flaw (CVE-2021-22779) in some of Schneider Electric’s Modicon PLCs can allow attackers to bypass authentication mechanisms and take over the device. Researchers at IoT security firm Armis discovered an authentication bypass vulnerability, tracked as CVE-2021-22779 and dubbed ModiPwn, that affects some of Schneider Electric ’s Modicon PLCs. The flaw can be exploited by an unauthenticated attacker […]

Pierluigi Paganini February 27, 2021
Experts found a critical authentication bypass flaw in Rockwell Automation software

A critical authentication bypass vulnerability could be exploited by remote attackers to Rockwell Automation programmable logic controllers (PLCs). A critical authentication bypass vulnerability, tracked as CVE-2021-22681, can be exploited by remote attackers to compromise programmable logic controllers (PLCs) manufactured by Rockwell Automation. The vulnerability was independently reported to Rockwell by researchers at the Soonchunhyang University […]

Pierluigi Paganini November 13, 2020
Security flaws in Schneider Electric PLCs allow full take over

Schneider Electric released advisories for multiple flaws, including issues that can allow taking control of Modicon M221 PLCs. Schneider Electric released security advisories for multiple vulnerabilities impacting various products, including four issues that can be exploited by attackers to take control of Modicon M221 programmable logic controllers (PLCs). Four encryption and authentication issues in Modicon […]

Pierluigi Paganini March 12, 2020
Talos found tens of dangerous flaws in WAGO Controllers

Cisco Talos experts discovered tens of flaws in WAGO products that expose controllers and human-machine interface (HMI) panels to remote attacks. Talos and Germany’s VDE CERT this week published advisories describing roughly 30 vulnerabilities identified in devices made by WAGO, a German company specializing in electrical connection and automation solutions. The vulnerabilities affect PFC100 and PFC200 programmable […]