NSF Graduate Research Fellow helps turn ‘forever chemicals’ into valuable resource

Published: 22 July 2025
Categories: National Science Foundation

RSS feed source: National Science Foundation

“Forever chemicals” are everywhere — from Teflon pans and dental floss to raincoats and microwave popcorn bags. Known as PFAS, these chemicals (per- and polyfluoroalkyl substances) are noted for their resistance to heat, oil and water. That same staying power makes them a growing concern. PFAS have been linked to a range of serious health risks, including increased risk of certain cancers, fertility issues, immune system dysfunction and developmental problems. Because PFAS remain in water, soil and air for a long time (hence the name “forever chemicals”), removing them from the environment has become a public priority.  

Earlier this year, a team of scientists from Rice University (including U.S. National Science Foundation Graduate Research Fellowship Program alum Kevin Wyss) announced the development of a new method to break down PFAS that is not only extremely effective (removing 99.98% of the most common PFAS pollutant), but also creates the valuable manufacturing material graphene, one of the world’s strongest and lightest materials.  

This pioneering method involves combining PFAS with granular activated carbon and salts, then heating it to over 3,000 degrees Celsius in under a second. The intense heat breaks the chemical bonds in PFAS, turning them into harmless fluoride salts. At the same time, the activated carbon in the mixture is turned into graphene, which is used in industries such as manufacturing, electronics

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#StopRansomware: Interlock

Published: 21 July 2025
Categories: US-Computer Emergency Readiness Team

RSS feed source: National Science Foundation

Summary

Note: This joint Cybersecurity Advisory is part of an ongoing #StopRansomware effort to publish advisories for network defenders that detail various ransomware variants and ransomware threat actors. These #StopRansomware advisories include recently and historically observed tactics, techniques, and procedures (TTPs) and indicators of compromise (IOCs) to help organizations protect against ransomware. Visit stopransomware.gov to see all #StopRansomware advisories and to learn more about other ransomware threats and no-cost resources.

The Federal Bureau of Investigation (FBI), Cybersecurity and Infrastructure Security Agency (CISA), Department of Health and Human Services (HHS), and Multi-State Information Sharing and Analysis Center (MS-ISAC)—hereafter referred to as “the authoring organizations”—are releasing this joint advisory to disseminate known Interlock ransomware IOCs and TTPs identified through FBI investigations (as recently as June 2025) and trusted third-party reporting.

The Interlock ransomware variant was first observed in late September 2024, targeting various business, critical infrastructure, and other organizations in North America and Europe. FBI maintains these actors target their victims based on opportunity, and their activity is financially motivated. FBI is aware of Interlock ransomware encryptors designed for both Windows and Linux operating systems; these encryptors have been observed encrypting virtual machines (VMs) across both operating systems. FBI observed actors obtaining initial access via drive-by download from compromised legitimate websites, which is an uncommon method among ransomware groups. Actors were also observed using

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