Congress let a key cybersecurity law expire this week, leaving US networks more vulnerable

The article discusses the expiration of the Cybersecurity Information Sharing Act of 2015 (CISA 2015), a crucial cybersecurity law in the United States. The law was designed to promote the sharing of cyber threat information between the private and public sectors, providing legal protections for companies that share such data. Without CISA 2015, the article explains that sharing of cyber threat information becomes more complicated, potentially making it easier for adversaries like Russia and China to conduct cyberattacks. The article notes that there was support for the renewal of CISA 2015 from the private sector, the Trump administration, and bipartisan members of Congress, but the renewal was blocked by Senator Rand Paul (R-KY) due to his concerns about language related to combating misinformation and disinformation. The article also mentions that the House Republicans included a short-term CISA 2015 renewal in its government funding bill, but Democrats, whose support the GOP needs, refused to support it due to their desire to extend Affordable Care Act premium tax credits. Overall, the article highlights the potential consequences of the expiration of CISA 2015, leaving US computer networks more vulnerable to cyberattacks.