The U.S. Cybersecurity and Infrastructure Security Agency has issued new guidance requiring federal agencies to address the most severe vulnerabilities within as little as three days. The policy shifts vulnerability management from a uniform approach to risk-based prioritisation, focusing first on flaws with high likelihood of exploitation and large potential impact. CISA said only 1 percent of vulnerabilities would fall under the three-day rule, while lower-risk issues could follow regular patch cycles.

A technology has been developed to restore the performance of electrodes from used lithium-ion batteries without dismantling or melting them. Researchers expect the method can recover up to 95 percent of battery capacity and more than halve manufacturing costs for refurbished batteries. The approach regenerates electrodes directly on their metal current collectors by removing the SEI layer using a DMI solvent and applying a recovery process. It was tested mainly on EV batteries with 70 to 80 percent state of health.