Portrait of Steve Ballmer
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Steve Ballmer on Linux

Vocal Linux adversary (strong)

TL;DR

Steve Ballmer famously characterized Linux in 2001 as a cancer that contaminates intellectual property it touches.

Key Points

  • He stated in 2001 that Linux was a cancer because its license forces derivative works to become open source.

  • He expressed concern that government funding should not be used for open-source work as he believed it was unavailable to commercial companies.

  • Microsoft's position and Ballmer's comments are cited as part of an older anti-open-source campaign that has since evolved significantly.

Summary

During his tenure as CEO of Microsoft, Steve Ballmer expressed a staunchly negative view of Linux and the broader open-source movement, famously labeling Linux "a cancer that attaches itself in an intellectual property sense to everything it touches" in a June 2001 interview. He presented the primary objection as being related to the GNU General Public License (GPL), asserting that using any open-source software would require a commercial company to make the rest of its proprietary software open source, a claim commentators noted was an oversimplification of licensing terms. He also argued that government funding should not be used for open-source work because, in his view, it was not available to commercial entities.

This hardline stance from 2001 was emblematic of Microsoft's historical hostility toward open source, often involving spreading FUD (Fear, Uncertainty, and Doubt) toward management unfamiliar with the licensing models. While his stance was highly confrontational at the time, Microsoft's subsequent actions under later leadership shifted toward embracing open source and even contributing code to the Linux kernel. This earlier rhetoric, however, remains a significant historical marker of the intense competition between proprietary and open-source software ecosystems during the early 2000s.

Frequently Asked Questions

Steve Ballmer, in his capacity as Microsoft CEO, famously stated in 2001 that Linux was a "cancer that attaches itself in an intellectual property sense to everything it touches." This statement was made during an interview where he expressed concerns over the GPL license and government funding of open-source projects. These comments are frequently cited as evidence of Microsoft's historical hostility toward the open-source ecosystem.

While the provided sources focus heavily on his 2001 remarks, later context suggests Microsoft's corporate stance has shifted dramatically to embrace open source, including significant contributions to Linux. However, there is less specific reporting on a direct, personal retraction from Ballmer himself regarding his past harsh characterization of the operating system. The company's actions are often described as having moved on from that confrontational era.

The primary reason cited for Steve Ballmer's comment was his belief that the licensing of open-source software, specifically the GPL, legally compelled commercial entities using any part of it to release their entire product's source code. He viewed this as a fundamental threat to Microsoft's intellectual property and business model at that time. Commentators have suggested this was also a tactic to discourage enterprise adoption.