I've been asked to share wallet credentials to participate in mining. Is that a scam? Good day Everyone!!, 


  I've been approached by at least two people on one of my social media accounts and they were claiming that they would be able to increase my bitcoin by linking my wallet to their miner. 


Now what I was curious about is whether this was a scam and if not was there a way of keeping myself secure in the process????

The process from what I was being sold is as follows:


Open a blockchain wallet. 
Send them the details of the wallet (user and password)
Change the password to whatever
Start earning after depositing a certain bare minimum amount (lets say 0.004)
I should theoretically start earning...
Its an obvious attempt of a scam. Don't ever do that. What the scammers will do is as follows:
they will make a copy of your key, then you will lock them out to access your key. It won't help because they would have already made a copy.

Changing your password prevents anyone from using that password to access your wallet and keys. It doesn't prevent anyone who already knows your secrets from just creating another wallet with the same secrets.