for example, spammers and hackers use the same session id across different devices. this technique can help avoiding rate limits and also allow using it program

for example, spammers and hackers use the same session id across different devices. this technique can help avoiding rate limits and also allow using it programmatically. it is nice to be able detect such things. I work for e-mail provider and spammers are becomming increasingly sophosticated and are finding new ways to exploit such security holes