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What is Log4j? A cybersecurity expert explains the latest internet vulnerability, how bad it is and what's at stake

  • Written by Santiago Torres-Arias, Assistant Professor of Electrical and Computer Engineering, Purdue University
What is Log4j? A cybersecurity expert explains the latest internet vulnerability, how bad it is and what's at stakeA vulnerability in Log4j, a humble but widespread piece of software, has put millions of computers at risk.SOPA Images/LightRocket via Getty Images

Log4Shell, an internet vulnerability that affects millions of computers, involves an obscure but nearly ubiquitous piece of software, Log4j. The software is used to record all manner of activities that...

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