Sen. Grassley seeks details from CISA on January breach of chemical sector assessment tool

Sen. Charles Grassley (R-IA) is questioning the Cybersecurity and Infrastructure Security Agency’s efforts to secure its own systems in the wake of a January cyber intrusion impacting the chemical sector that exposed sensitive information to the public.

CISA sent letters in June to potential stakeholders who were impacted by a Jan. 23-26 cyber intrusion of the agency’s Chemical Security Assessment Tool Ivanti Connect Secure appliance. The notification letter says, “While CISA’s investigation found no evidence of exfiltration of data,...