The agencies detected a pattern of corrupt insiders and outside cyber actors using desktop sharing software to victimize targets in a range of organizations, including those in the critical infrastructure sectors. Onsite response to the Oldsmar water plant hack is provided by Pinellas County Sheriff Office (PCSO), U.S. The joint cybersecurity advisory has been issued by the Federal Bureau of Investigation (FBI), the Cybersecurity and Infrastructure Security Agency (CISA), the Environmental Protection Agency (EPA), and the Multi-State Information Sharing and Analysis Center (MS-ISAC). This led to manipulation of control set points for the dosing rate of sodium hydroxide into the water, he added. It has been publicly acknowledged that an operator machine had a remote access software package – TeamViewer – installed and accessible to the Internet, wrote Ben Miller, an executive at cybersecurity company Dragos in a blog post. Security experts had said soon after the Oldsmar water plant hack was disclosed that the TeamViewer software could have been compromised. The hackers would have possibly obtained unauthorized access to the supervisory control and data acquisition (SCADA) system, indicating that it is likely that ‘a desktop sharing software, such as TeamViewer, may have been used to gain unauthorized access to the system’ according to an advisory issued last week. security agencies revealed that preliminary information from the Oldsmar water plant hack suggests that the unidentified cyber actors likely accessed the water treatment system by exploiting cybersecurity weaknesses, including poor password security, and an outdated operating system.
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