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Log4Shell – what it is, why you should care, and what you can do about it

Log4Shell - the name on everyone's lips since December 2021. It's a formidable flaw in the ubiquitous Log4J logging library that allowed attackers to compromise applications by manipulating user-controlled data. Out in the wild for an indefinite time before discovery, the bug's full ramifications may still see the light of day. Read on to find out more.