Question I got logged out of a website, can I somehow use cookies to log back in ?

[Dimitri001]

So there's an online service I'd registered to with my phone number and whenever I'd open it in my browser I'd be automatically logged in. At some point, this was no longer true and when I opened the website it asked me to log back in using my phone number. The trouble is, I'd lost my phone in the meantime and no longer have access to that number. I've spoken to support, they say if you don't have the number, you can't log in.

In Firefox, I can see that I still have 16 cookies from that site. Is there some way I can use those cookies, which were presumably the cookies that had previously logged me in automatically, to log back in?

 

[Cilantro7536]

More or less, you are asking how to circumvent the security measures put in place by the website, even with the cookies you already have.

In general, though, without circumventing the security in place, if you use a direct URL to the resource you want to access and it allows you to do so with the existing cookies, then you're set. If it redirects you to an authentication page, then you have no choice unless you know how the website uses the various cookies you already have that can be manipulated to grant you access.

An example of this is the URL "myaccount.google.com," which will grant you basic access to your Google account if you never log off. However, the URL "myaccount.google.com/signinoptions/passkeys" will most likely land you on an authentication page unless you have done so recently.

 

[rgd1101]

answer is no. if the website ask you to login again. most likely the cookie has expired.