Login to Salesforce instance using SessionId
If you have session Id, then you can login to Salesforce directly using below URL hack :
on the above URL, you have to replace [instance] by actual salesforce instance name and [sessionId] by an actual sessionID of the user.
In the same way, we can directly login to portals or communities using below URL hack
Important Note: You have to be very careful while using/sharing SessionId, If it's publicly available then anyone can have access to your Salesforce Org.
