Hi Anonymous,
I have no experience with the ‘Absconding’ scenario. Never heard any either.
But, you would certainly be NOT allowed to enter premises and have your access blocked.
‘Absconding’ means that the company is NOT able to trace/track or contact you. How do you expect the HR to contact you then?
I think all your access will be blocked including emails.
Absconding is the extreme step that a company takes when they are not able to find you in any way.