What Refrigerator Hacks Reveal About ICS Exposure
Waves of cyberattacks on refrigerators across Europe remind us that OT and ICS remain perpetually exposed. Here are a four reasons why.
Topic
Critical Infrastructure
13 posts
2026 State of the Internet: The Exposure Notification Gap in ICS Devices
New data from Censys' upcoming State of the Internet Report reveals a major blind spot in Internet-exposed industrial control systems (ICS).
ICS & Iran, Part 2: Revisiting Exposure of Previously Targeted Devices
Tracking Internet exposure of ICS devices targeted by Iranian threat actors. Research covers Unitronics PLCs, Orpak SiteOmat, Red Lion & Tridium Niagara trends.
Lives on the Line: Hidden Risks in Critical National Infrastructure
Discover how External Attack Surface Management (EASM) protects Critical National Infrastructure from accidental exposures, HMI vulnerabilities, and evolving cyber threats. Learn key strategies from Censys.
ICS and Iran: Exposure of Previously Targeted Devices
**Discover research on Internet-exposed critical infrastructure devices targeted by Iranian threat actors, including Unitronics PLCs and more. Learn key risks and exposure trends.**
Turning Off the (Information) Flow: Working With the EPA to Secure Hundreds of Exposed Water HMIs
Censys researchers found 400 exposed water facility HMIs online—40 fully unauthenticated. Learn how critical infrastructure risks were discovered and remediated.
Salt Typhoon Attacks Highlight Need for Advanced Defenses
Chinese Volt Typhoon & Salt Typhoon cyber espionage campaigns expose critical infrastructure weaknesses. Learn how adversary infrastructure threats demand advanced threat hunting.
Securing the Signal and Protecting the Grid: Facing the Cybersecurity Risks Across Telecom
Discover how Salt Typhoon exposed telecom cybersecurity gaps in critical infrastructure. Learn about threat detection and exposure management strategies to combat nation-state attacks.
Global ICS Exposures: What Our 2024 State of the Internet Report Reveals About Critical Infrastructure Security
Over 145,000 ICS services exposed globally. Censys research reveals critical HMI vulnerabilities in industrial control systems, with key risks to water infrastructure. Read the findings.
Water ICS Exposures Highlight Vulnerabilities in Critical Infrastructure Security
Censys research reveals exposed industrial control systems (ICS) threatening U.S. critical infrastructure. Discover vulnerable water, wastewater & energy devices at risk from state-backed hackers.
Potential Chinese Influence on African IT Infrastructure
Between 10-21 February 2023, Censys discovered over 46,000 commercial devices associated with four U.S. blacklisted Chinese tech manufacturers in Kenya, Zambia, South Africa, and Mauritius. Huawei, ZTE, Hikvision, and Dahua were blacklisted by the U.S. government in November of 2022 and the importation or sale of their equipment was banned in the U.S. […]
One Year Later: 3 Insights Into the Colonial Pipeline Attack and Gas & Oil Critical Infrastructure
On May 7, 2021, the FBI was “notified of a network disruption at Colonial Pipeline.” The public later learned, and the FBI confirmed, that this disruption was due to a ransomware attack perpetrated by the Russian-speaking DarkSide ransomware gang, based out of Eastern Europe. A look into the 2021 Colonial Pipeline ransomware attack This attack […]
Why Internet-connected OT infrastructure presents a security risk to company data
With the addition of 8 new protocols—bringing our total Operational Technology (OT) protocol count to 16–Censys now discovers more than 100,000 publicly accessible OT services. OT is defined as the systems used to manage industrial operations. This includes Industrial Control Systems (ICS) but also the software and devices used to manage ICS infrastructure. Many protocols […]