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A report by the Public Utilities Regulatory Authority found that phishing attacks remained the largest source of successful cyberattacks and pose a significant risk to all of the state’s critical infrastructure entities. Based on the report findingd, electric, gas, and water companies are increasingly vulnerable to cyberattacks. This may reflect wider emerging trends in the US.

Phishing attacks are emails claiming to be from reputable companies seeking personal information such as passwords and credit card numbers. Phishing is a type of social engineering attack often used to steal user data. Findings also show these phishing attempts have become more automated, are easier to conduct, and are designed to evade detection.

According to portal.ct.gov, the lack of multi-factor authentication was the primary cause of many successful phishing hacks of utility vendors and business partners, the report found. For example, malicious cyber actors gained access to the supervisory control and data acquisition system at a water treatment plant to manipulate the water treatment process. 

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