This edition of Tech Time Warp takes us back to 1995—the public debut of Java, the legendary “Write Once, Run Anywhere” programming language—and a textbook example of the security perils of ubiquitous technology.
The birth of Java
On May 23, 1995, a Sun Microsystems Inc. team led by James Gosling announced the availability of Java and the HotJava web browser during the SunWorld conference in San Francisco. Developers began creating Java in1991—initially called “The Green Project”—to eliminate the challenges of a world filled with disparate operating systems. This universal programming language made it possible to code for Macs, PCs, and Unix machines simultaneously. (Fun fact: Java was first named “Oak,” but upon finding out that name was under trademark, the team renamed the language “Java” in an homage to the caffeinated drink.)
The magic of Java lay in its ability to translate code into Bytecode, which could then be interpreted by a virtual computer for use on the host computer. This was particularly important for the nascent world of the internet, where many different types of computers were accessing the same webpages. The language’s platform independence, object-oriented principles, and overall simplicity led to widespread adoption. Java applets made the internet interactive and no longer the domain of static HTML. Plus, Java powered mobile apps for Android devices.
When innovation becomes attack surface
That mass appeal of Java caught the attention of cybercriminals. The early 2010s were filled with Java-related security incidents that thwarted the language’s built-in security mechanism—a sandbox in which Java applets were supposed to run without touching any local files or system resources. In April 2012, more than 600,000 Macs were by the Java-related Flashback Trojan. In early 2013, the U.S. Computer Emergency Readiness Team (US-CERT, part of Homeland Security) suggested all computer users disable Java in their web browsers.
General availability of JDK 26—the latest Java release—in March 2026 finally deprecated the Java applet.
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Photo: Roman Samborskyi / Shutterstock
Great read! Java truly changed the software world with its “Write Once, Run Anywhere” vision. It’s fascinating to see how a technology that revolutionized cross-platform development also faced major security challenges over time. A well-written journey through Java’s evolution!