Cybersecurity threat intelligence reports over the past few weeks have warned of a new threat to the backbone of many websites, known as the “PHP” issue. PHP underpins almost 70 percent of all websites by powering major content management systems such as WordPress, Drupal, and Magento. Discovering the flaw triggered a global security scramble to update the compromised code. It’s a strange place where IT departments in government and across the web are crossing into a legislative issue currently facing Congress.
The foundation of the original web is being threatened simultaneously by code degradation (PHP) and a legislative stalemate. The cascading effects are enormous. Compromised code leaves systems vulnerable to data theft, server takeovers, and deep network infiltration.
The PHP flaw underscores the importance of managing an organization’s website and the legislative challenge surrounding the Cybersecurity Information Sharing Act of 2015 (CISA 2015), which is impeding a key part of information sharing through the Department of Homeland Security (DHS).
This affects everyone: corporations, consumer web interfaces, and governments. US agencies, including the Federal Bureau of Investigation, the National Security Agency, and the Cybersecurity and Infrastructure Security Agency issued urgent mandates to update immediately. Europe’s European Union Agency for Cybersecurity followed suit, calling for an update, while Finland, France, the Netherlands, Denmark, and Australia took down government portals and public services entirely while they applied emergency fixes.
The problem has been lying in wait because of what IT teams call “technical debt”: systems left vulnerable due to a lack of maintenance and neglected patching. These legacy infrastructure systems can still function without proper maintenance, leaving flaws unpatched for decades.
Enter artificial intelligence, which can accelerate the discovery of critical software flaws far faster than human analysis. The good news is that AI can detect and respond to a breach quickly if it’s designed for real-time discovery and response, rather than waiting for traditional security updates that may be part of a weekly or monthly IT update, or that may not occur at all.
Unfortunately, bad actors also have access to these tools and focus solely on finding bugs and flaws to exploit for extortion. Their speed comes from knowing they have a limited window to exploit and weaponize the flaw at machine speed.
This is where the DHS’s CISA 2015 comes into play. A key component is the agency’s ability to report and rapidly exchange threat intelligence between federal agencies and the private sector. It’s a centralized clearinghouse for reporting and response, where both public and private entities can share IT bugs, flaws, and analysis to speed up their ability to neutralize or defend against cyberattacks.
Thanks to the CISA 2015 legislation, DHS enables companies to share information with each other. It enables a sharing ecosystem that supports the legal, structural, and technical pillars needed to build an information-sharing network in an indemnified environment. If a malicious IP address, malware function, or systemic flaw is detected, a private enterprise in the information-sharing program can automatically push the information to CISA’s central server. CISA validates the concern and sends a notice to all other participants in the information-sharing network in near real time to enable a faster response and proactive blocking of malicious actions.
The system allows anonymous reporting without privacy concerns, including those related to intellectual property that scanning tools may detect. CISA provides a safe harbor that shields the private firm from legal exposure that may result from reporting the malware or breach. The shared data receives a Freedom of Information Act (FOIA) exemption, so a reporting firm does not face the risk of a competitor scraping proprietary data from the shared intelligence. The antitrust protections of the CISA15 Act also shield competitors in the same industry from violating antitrust laws if they share threat metrics through the information-sharing system as part of the good-faith cybersecurity protection provided to CISA.
Reauthorizing CISA15 became an issue last year, as I wrote about and discussed on a podcast. One of the country’s most important cybersecurity laws quietly expired in October 2025 when the 2015 Cybersecurity Information Sharing Act (CISA) was conflated with the Cybersecurity and Infrastructure Security Agency (CISA) agency’s reauthorization and a concern by Senator Rand Paul about free expression. An unfortunate naming overlap has created a political standstill that continues to harm cybersecurity globally by allowing information sharing between the private sector and the government to lapse. The PHP issue has made this problem very real.
When Congress returns for the lame-duck session in November, all Members should understand why passing CISA15 by its December 11th date should be at the top of its legislative list and on the President’s desk. Unfortunately, like upgrading software, reauthorizing important legislation isn’t always as simple as clicking a button.