Substack Daily Updates – 4-19-26

Today I published the following on Chemical Facility Security News:

• Public ICS Disclosures – Week of 4-11-26 – Part 2 – For Part 2 we have 4 additional vendor disclosures – 20 bulk vendor updates – 2 additional vendor updates - 4 researcher reports – 3 exploits – Short version of article published here (premium content) - https://chemical-facility-security-news.blogspot.com/2026/04/review-public-ics-disclosures-week-of-4_19.html

Yesterday I published the following on Chemical Facility Security News:

• Review – Public ICS Disclosures – Week of 4-11-26 – Public ICS Disclosures – 4-11-26 – Part 1 – Moderately busy disclosure week – 32 bulk vendor disclosures – 7 additional vendor disclosures – Short version of article published here (premium content) - https://chemical-facility-security-news.blogspot.com/2026/04/review-public-ics-disclosures-4-11-26.html

I have removed the following articles from the CFSN Detailed Analysis paywall:

• EPA Publishes Hazardous Substance Facility Response Plans ANPRM,

• HR 7338 Introduced – RSAC Codification,

• 4 Advisories Published – 2-19-26, and

• (2021) 10 Updates Published – 6-8-21.