this post was submitted on 02 Dec 2025
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Let’s Encrypt will be reducing the validity period of the certificates we issue. We currently issue certificates valid for 90 days, which will be cut in half to 45 days by 2028.
This change is being made along with the rest of the industry, as required by the CA/Browser Forum Baseline Requirements, which set the technical requirements that we must follow. All publicly-trusted Certificate Authorities like Let’s Encrypt will be making similar changes. Reducing how long certificates are valid for helps improve the security of the internet, by limiting the scope of compromise, and making certificate revocation technologies more efficient.

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[–] CrabAndBroom@lemmy.ml 13 points 3 days ago (5 children)

I'm trying to think of the last time I heard news about something to do with the internet getting better instead of worse, and I'm genuinely coming up blank.

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[–] vzqq@lemmy.blahaj.zone 2 points 2 days ago (11 children)

YES! Keep cutting it down!

Revocation is a lost cause and if you don’t automate you deserve what you get.

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[–] imetators@lemmy.dbzer0.com 19 points 3 days ago (1 children)

As some selfhosting novice who uses NPM with auto renewal - I feel that I shouln't be ocncerned.

[–] mjr@infosec.pub 16 points 3 days ago

Check your autorenewal failure alerts go somewhere you'll react to.

[–] Prove_your_argument@piefed.social 17 points 3 days ago (1 children)

Reducing the valid time will not solve the underlying problems they are trying to fix.

We're just gonna see more and more mass outages over time especially if this reduces to an uncomfortably short duration. Imagine what might happen if a mass crowdflare/microsoft/amazon/google outage that goes on perhaps a week or two? what if the CAs we use go down longer than the expiration period?

Sure, the current goal is to move everybody over to ACME but now that's yet another piece of software that has to be monitored, may have flaws or exploits, may not always run as expected... and has dozens of variations with dependencies and libraries that will have various levels of security of their own and potentially more vulnerabilities.

I don't have the solution, I just don't see this as fixing anything. What's the replacement?

[–] fistac0rpse@fedia.io 14 points 3 days ago (3 children)

clearly the most secure option is to have certificates that are only valid for 30 seconds at a time

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[–] Valmond@lemmy.world 12 points 3 days ago* (last edited 2 days ago) (5 children)

And you still can't self certify.

It's cute the big players are so concerned with my little security of my little home server.

Or is there a bigger plan behind all this? Like pay more often, lock in to government controlled certs (already done I guess because they control DNS and you must have a "real" website name to get a free cert)?

I feel it's 50% security 50% bullshit.

Edit: thank you all I will dive down the CA certification rabbit hole now! Have worked in C++ & X509 on the client side so maybe I'll be able to figure it out.

[–] farcaller@fstab.sh 24 points 3 days ago (14 children)

You can absolutely run your own CA and even get your friends to trust it.

[–] CosmicTurtle0@lemmy.dbzer0.com 15 points 3 days ago

Yes you can but the practicality of doing so is very limiting. Hell I ran my own CA for my own internal use and even I found it annoying.

The entire CA ecosystem is terrible and only exists to ensure connections are encrypted at this point. There's no validation or any sort of authority to say one site is better than another.

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