Log4j is open-source software maintained by a group of volunteer programmers as part of the nonprofit Apache Software Foundation and is a key Java-logging framework.
Log4j Security Vulnerabilities
A flaw in Log4j, a Java library for logging error messages in applications, has prompted governments to issue urgent warnings and forced companies to rush in to fix one of the most serious software flaws
What do companies do to fix software exploits?
Major global companies, including Microsoft Corp and Cisco Inc, are facing pressure to fix what experts describe as one of the most serious software flaws in recent memory.
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