I will burn your servers to the ground, foul villain

One of our systems at work don't let you use the past thirteen passwords! Plus monthly password changes. Guess who's got a generic password that has an ever increasing number at the end of it...

If I'm not mistaken It's actually shown to be bad to change passwords that often because you end up with people writing them down
- Yes, NIST now recommends against requiring periodic password changes in their official guidance document.
One of my work applications doesn't allow you to use any of the letters in the same spot or any repeating letters . And it expires every 45 days . So for example if I used Batman1 for my password . I can't just switch to Captain2 because the second letter is the same . And you can't use something like Poophead because there are 2 O's in a row . It's a nightmare every time it expires .
- that would instantly make me very dumb and require a lot of explaining on the phone. like "when I say hello mister Thompson and press down on your foot then you smile and nod, do you understand?" levels of dumb.
  "I've used up all the vowels! there are only 5! this means the only password left is rhythm"
  "no you can use the same vowels just they can't be in the same place"
  "like I have to do it in my kitchen?"
  "no the same place in the word"
  "so it has to be the same word with different letters?"
  "no, it has to be a different word with different letters"
  "well like I said I already used all the vowels"
- When it expires, bump every character up by one - A/a becomes B/b, 1 becomes 2, for symbols use the next one on the row.
- That also means they are saving that information. I doubt a single character can be usefully hashed. Seems like a security nightmare.
Pretty much everyone, which is why NIST no longer recommends automatic password expiry anymore.
I wonder what percentage of the company also do the same, would be an interesting statistic.
- It's an easy attack vector, hackers love it.
- Venn diagram is a circle.
This is what password managers are nice for. I only know like two of my passwords all across the internet.
I'm pretty sure most people do when faced with a situation like that
If it were 12, I'd say use the month, but 13...
- Lousy Smarch weather
- Lunar calendar

FWIW: these types of password rules are discouraged by NIST -

Eliminate Periodic Resets
Many companies ask their users to reset their passwords every few months, thinking that any unauthorized person who obtained a user’s password will soon be locked out. However, frequent password changes can actually make security worse.
It’s difficult enough to remember one good password a year. And since users often have numerous passwords to remember already, they often resort to changing their passwords in predictable patterns, such as adding a single character to the end of their last password or replacing a letter with a symbol that looks like it (such as $ instead of S).
So if an attacker already knows a user’s previous password, it won’t be difficult to crack the new one. The NIST guidelines state that periodic password-change requirements should be removed for this reason.

They also recommend implementing 2FA, but not OTP or TOTP as they are now considered not secure enough. Use 2FA that is FIDO2 compliant such as biometrics or fobs like Yubikey.
- I wish I knew what all those acronyms mean.
- How is a TOTP not secure? It's a random string that changes every 30 seconds. I mean shit, I am LOOKING at it, and sometimes fail a login because I run out of time.
Yes never made much sense to me either.

Spotify won't let you use a password you've used in the past at all so now I don't even know what my password for it has evolved into and I just reset my password and type something random in every time I need to log in lmao

That's basically just 2FA with extra steps (•_•)

Why you click "Forgot my password" and they email it to you.

Security lvl > 9000

Might be you got your password scrambled after a compromised account: It denies attackers the opportunity to use your compromised password.

Why does this happen though? I always wondered why is it that a platform recognises your old password only when you are trying to change it

If there were a data breach where a hacker could figure out the encryption algorithm, you don't want users to reuse an older password because those older passwords could've already been cracked.
By the way, this is why you should also never use the same password for every site. If one of your passwords is leaked and linked to a similar username or email, everything is vulnerable. I've had this happen before (the Target breach). After that I started using SSO exclusively, with a random 16 char password manager if SSO isn't an option (crossing my fingers that bitwarden doesn't get hacked like LastPass)
- I understand when you are prompted to change, but not when you aren't. As I mentioned in another comment I remember Epic basically trolling me into resetting my password almost daily at some point
Microscopic trolls inside the internet tubes. I think that's the technical term.
Because it runs the hash again on the new password against the old one, if it matches the old one you are told to change it as you used the old password again.
- Yes yes but I don't mean when I'm told to change one. I mean when I'm trying to login as usual, password doesn't work, so I change it. Just to test of the password I was using was wrong, that's what I use first- and it's rejected.
  I remember Epic would do this on a DAILY basis at some point last year. It was so irritating. "Ah yes the brand new password from yesterday that worked yesterday but that we didn't recognise on the login page today? Well we do recognise here on the reset, jokes on you!"

I always find these types of posts frustrating. Apart from your desktop password, a password manager solves a lot of these issues. Just make the password manager super secure, use 2fa and then auto generate all other passwords.

just make the password manager super secure
Remember when everyone said LastPass was that manager?
- There are self-hosted options with strong encryption. My BitWarden vault is just as secure as if my laptop were stolen. Argon2id to secure the key for AES256 encryption.
The issue the post is about applies to password managers too.
I forgot my keypass password
Can’t use it when logging into the laptop. And parts of the network have to be typed in - it detects and rejects pasting (haven’t built out an autohotkey to see if that would work)
- I use a memorized passphrase with a random string stored on a mooltipass or onlykey. I use both interchangeably for vendor diversity.
  They are both pin protected and act as USB keyboards (how I use them). They have more features like FIDO2 (both), WebAuthN (moolti), Bluetooth (moolti), etc.
  I only store my computer decryption and account password plus my bitwarden password on them (random part for use with memorized passphrase). After that I just use bitwarden once I'm logged in.
Literally unusable for my needs.