# \#java

**URL:** https://scanalyst.fourmilab.ch/tag/java/834.md

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## [Major “Psychic Paper” Security Flaw Patched in Java](https://scanalyst.fourmilab.ch/t/major-psychic-paper-security-flaw-patched-in-java/1228)

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**Author:** [@johnwalker](https://scanalyst.fourmilab.ch/u/johnwalker)\
**Replies:** 1\
**Last updated:** [20 April 2022 15:12 UTC](https://scanalyst.fourmilab.ch/t/major-psychic-paper-security-flaw-patched-in-java/1228 "2022-04-20T15:12:29Z")

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Neil Madden reports, “CVE-2022-21449: Psychic Signatures in Java”: The long-running BBC sci-fi show Doctor Who has a recurring plot device where the Doctor manages to get out of trouble by showing an identity card wh…

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## [Understanding the Log4J/JNDI (Log4Shell) Exploit](https://scanalyst.fourmilab.ch/t/understanding-the-log4j-jndi-log4shell-exploit/621)

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**Author:** [@johnwalker](https://scanalyst.fourmilab.ch/u/johnwalker)\
**Replies:** 1\
**Last updated:** [24 December 2021 14:56 UTC](https://scanalyst.fourmilab.ch/t/understanding-the-log4j-jndi-log4shell-exploit/621 "2021-12-24T14:56:13Z")

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When it was introduced in the mid-1990s, the Java programming language was intended to be a small, clean, secure, and highly portable programming language that jettisoned the legacy baggage of languages suc…