|A Method for Web Security Policies|
Example security.txt file
|First published||September 2017|
security.txt is a proposed standard for websites' security information that is meant to allow security researchers to easily report security vulnerabilities. The standard prescribes a text file called "security.txt" that is similar to robots.txt but intended to be read by humans wishing to contact a website's owner about security issues. security.txt files have been adopted by Google, GitHub, LinkedIn, and Facebook.
The Internet Draft was first submitted by Edwin Foudil in September 2017. At that time it covered four directives, "Contact", "Encryption", "Disclosure" and "Acknowledgement". Foudil expected to add further directives based on feedback. At that time, web security expert Scott Helme said he had seen positive feedback from the security community while use among the top 1 million websites was "as low as expected right now".
In 2019, the Cybersecurity and Infrastructure Security Agency (CISA) published a draft binding operational directive that requires all federal agencies to publish a security.txt file within 180 days.
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