The Internet Security Research Group (ISRG) is a nonprofit organization based in San Francisco, CA, dedicated to building a brighter and more secure internet. They offer Let's Encrypt, a free and automated certificate authority that provides open certificates for websites, ensuring privacy and security for online transactions.
With a focus on limiting damage from key compromise and mis-issuance, ISRG promotes automation as an essential tool for ease-of-use in certificate renewal. By offering certificates with a maximum lifetime of ninety days, they encourage system administrators to adopt automated renewal tools, ultimately supporting a more secure and privacy-respecting web.
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