CISA warns ‘most serious’ Log4j vulnerability likely to affect hundreds of millions of devices

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Easterly’s advice was to make sure organizations have their security teams staffed over the holidays, take “all necessary steps to close easily exploitable weaknesses” and share even more information than usual with CISA.

Jen Easterly took over CISA in July but has worked on national security policy issues since at least 2002.

In the hour-long call, CISA officials took questions from representatives of banks, hospitals, local governments and more.