When you send Bitcoin to someone, your Bitcoin transaction enters the Bitcoin network as an unconfirmed transaction. The transaction pool is created with some more unconfirmed transactions. Miners create a new block with some unconfirmed transactions from the transaction pool and try to place this new block in its intended place on the blockchain.
Suppose, if the new block number is 100, then the miners start looking for the number 99 block. When they were found, they placed the new 100 number block next to the 99 number block. When this new block sits at its intended location on the blockchain, all the transactions on that block receive 1 confirmation. After that, if a new block sits again, the transactions in the previous block will receive 2 confirmations. In this way, the more the blocks sit, the confirmation will increase.
I mean:
1 block means = 1 confirmation
1 block + 1 block = 2 confirmation
1block + 1 block + 1 block = 3 confirmation
6 confirmation is standard. Most wallets want six confirmation.
That means the more blocks and confirmation I received then my transaction will be, the more safer?